ent

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 Go to latest Published: Apr 14, 2021 License: Apache-2.0 Imports: 17 Imported by: 0

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Index

Constants

View Source 
const (
	// Operation types.
	OpCreate    = ent.OpCreate
	OpDelete    = ent.OpDelete
	OpDeleteOne = ent.OpDeleteOne
	OpUpdate    = ent.OpUpdate
	OpUpdateOne = ent.OpUpdateOne

	// Node types.
	TypeCity   = "City"
	TypeStreet = "Street"
)

Variables

This section is empty.

Functions

func IsConstraintError 

func IsConstraintError(err error) bool

IsConstraintError returns a boolean indicating whether the error is a constraint failure.

func IsNotFound 

func IsNotFound(err error) bool

IsNotFound returns a boolean indicating whether the error is a not found error.

func IsNotLoaded 

func IsNotLoaded(err error) bool

IsNotLoaded returns a boolean indicating whether the error is a not loaded error.

func IsNotSingular 

func IsNotSingular(err error) bool

IsNotSingular returns a boolean indicating whether the error is a not singular error.

func IsValidationError 

func IsValidationError(err error) bool

IsValidationError returns a boolean indicating whether the error is a validaton error.

func MaskNotFound 

func MaskNotFound(err error) error

MaskNotFound masks not found error.

func NewContext 

func NewContext(parent context.Context, c *Client) context.Context

NewContext returns a new context with the given Client attached.

func NewTxContext 

func NewTxContext(parent context.Context, tx *Tx) context.Context

NewTxContext returns a new context with the given Tx attached.

Types

type AggregateFunc 

type AggregateFunc func(*sql.Selector) string

AggregateFunc applies an aggregation step on the group-by traversal/selector.

func As 

func As(fn AggregateFunc, end string) AggregateFunc

As is a pseudo aggregation function for renaming another other functions with custom names. For example: 

GroupBy(field1, field2).
Aggregate(ent.As(ent.Sum(field1), "sum_field1"), (ent.As(ent.Sum(field2), "sum_field2")).
Scan(ctx, &v)

func Count 

func Count() AggregateFunc

Count applies the "count" aggregation function on each group.

func Max 

func Max(field string) AggregateFunc

Max applies the "max" aggregation function on the given field of each group.

func Mean 

func Mean(field string) AggregateFunc

Mean applies the "mean" aggregation function on the given field of each group.

func Min 

func Min(field string) AggregateFunc

Min applies the "min" aggregation function on the given field of each group.

func Sum 

func Sum(field string) AggregateFunc

Sum applies the "sum" aggregation function on the given field of each group.

type Cities 

type Cities []*City

Cities is a parsable slice of City.

type City 

type City struct {

	// ID of the ent.
	ID int `json:"id,omitempty"`
	// Name holds the value of the "name" field.
	Name string `json:"name,omitempty"`
	// Edges holds the relations/edges for other nodes in the graph.
	// The values are being populated by the CityQuery when eager-loading is set.
	Edges CityEdges `json:"edges"`
	// contains filtered or unexported fields
}

City is the model entity for the City schema.

func (*City) QueryStreets 

func (c *City) QueryStreets() *StreetQuery

QueryStreets queries the "streets" edge of the City entity.

func (*City) String 

func (c *City) String() string

String implements the fmt.Stringer.

func (*City) Unwrap 

func (c *City) Unwrap() *City

Unwrap unwraps the City entity that was returned from a transaction after it was closed, so that all future queries will be executed through the driver which created the transaction.

func (*City) Update 

func (c *City) Update() *CityUpdateOne

Update returns a builder for updating this City. Note that you need to call City.Unwrap() before calling this method if this City was returned from a transaction, and the transaction was committed or rolled back.

type CityClient 

type CityClient struct {
	// contains filtered or unexported fields
}

CityClient is a client for the City schema.

func NewCityClient 

func NewCityClient(c config) *CityClient

NewCityClient returns a client for the City from the given config.

func (*CityClient) Create 

func (c *CityClient) Create() *CityCreate

Create returns a create builder for City.

func (*CityClient) CreateBulk 

func (c *CityClient) CreateBulk(builders ...*CityCreate) *CityCreateBulk

CreateBulk returns a builder for creating a bulk of City entities.

func (*CityClient) Delete 

func (c *CityClient) Delete() *CityDelete

Delete returns a delete builder for City.

func (*CityClient) DeleteOne 

func (c *CityClient) DeleteOne(ci *City) *CityDeleteOne

DeleteOne returns a delete builder for the given entity.

func (*CityClient) DeleteOneID 

func (c *CityClient) DeleteOneID(id int) *CityDeleteOne

DeleteOneID returns a delete builder for the given id.

func (*CityClient) Get 

func (c *CityClient) Get(ctx context.Context, id int) (*City, error)

Get returns a City entity by its id.

func (*CityClient) GetX 

func (c *CityClient) GetX(ctx context.Context, id int) *City

GetX is like Get, but panics if an error occurs.

func (*CityClient) Hooks 

func (c *CityClient) Hooks() []Hook

Hooks returns the client hooks.

func (*CityClient) Query 

func (c *CityClient) Query() *CityQuery

Query returns a query builder for City.

func (*CityClient) QueryStreets 

func (c *CityClient) QueryStreets(ci *City) *StreetQuery

QueryStreets queries the streets edge of a City.

func (*CityClient) Update 

func (c *CityClient) Update() *CityUpdate

Update returns an update builder for City.

func (*CityClient) UpdateOne 

func (c *CityClient) UpdateOne(ci *City) *CityUpdateOne

UpdateOne returns an update builder for the given entity.

func (*CityClient) UpdateOneID 

func (c *CityClient) UpdateOneID(id int) *CityUpdateOne

UpdateOneID returns an update builder for the given id.

func (*CityClient) Use 

func (c *CityClient) Use(hooks ...Hook)

Use adds a list of mutation hooks to the hooks stack. A call to `Use(f, g, h)` equals to `city.Hooks(f(g(h())))`.

type CityCreate 

type CityCreate struct {
	// contains filtered or unexported fields
}

CityCreate is the builder for creating a City entity.

func (*CityCreate) AddStreetIDs 

func (cc *CityCreate) AddStreetIDs(ids ...int) *CityCreate

AddStreetIDs adds the "streets" edge to the Street entity by IDs.

func (*CityCreate) AddStreets 

func (cc *CityCreate) AddStreets(s ...*Street) *CityCreate

AddStreets adds the "streets" edges to the Street entity.

func (*CityCreate) Mutation 

func (cc *CityCreate) Mutation() *CityMutation

Mutation returns the CityMutation object of the builder.

func (*CityCreate) Save 

func (cc *CityCreate) Save(ctx context.Context) (*City, error)

Save creates the City in the database.

func (*CityCreate) SaveX 

func (cc *CityCreate) SaveX(ctx context.Context) *City

SaveX calls Save and panics if Save returns an error.

func (*CityCreate) SetName 

func (cc *CityCreate) SetName(s string) *CityCreate

SetName sets the "name" field.

type CityCreateBulk 

type CityCreateBulk struct {
	// contains filtered or unexported fields
}

CityCreateBulk is the builder for creating many City entities in bulk.

func (*CityCreateBulk) Save 

func (ccb *CityCreateBulk) Save(ctx context.Context) ([]*City, error)

Save creates the City entities in the database.

func (*CityCreateBulk) SaveX 

func (ccb *CityCreateBulk) SaveX(ctx context.Context) []*City

SaveX is like Save, but panics if an error occurs.

type CityDelete 

type CityDelete struct {
	// contains filtered or unexported fields
}

CityDelete is the builder for deleting a City entity.

func (*CityDelete) Exec 

func (cd *CityDelete) Exec(ctx context.Context) (int, error)

Exec executes the deletion query and returns how many vertices were deleted.

func (*CityDelete) ExecX 

func (cd *CityDelete) ExecX(ctx context.Context) int

ExecX is like Exec, but panics if an error occurs.

func (*CityDelete) Where 

func (cd *CityDelete) Where(ps ...predicate.City) *CityDelete

Where adds a new predicate to the CityDelete builder.

type CityDeleteOne 

type CityDeleteOne struct {
	// contains filtered or unexported fields
}

CityDeleteOne is the builder for deleting a single City entity.

func (*CityDeleteOne) Exec 

func (cdo *CityDeleteOne) Exec(ctx context.Context) error

Exec executes the deletion query.

func (*CityDeleteOne) ExecX 

func (cdo *CityDeleteOne) ExecX(ctx context.Context)

ExecX is like Exec, but panics if an error occurs.

type CityEdges 

type CityEdges struct {
	// Streets holds the value of the streets edge.
	Streets []*Street `json:"streets,omitempty"`
	// contains filtered or unexported fields
}

CityEdges holds the relations/edges for other nodes in the graph.

func (CityEdges) StreetsOrErr 

func (e CityEdges) StreetsOrErr() ([]*Street, error)

StreetsOrErr returns the Streets value or an error if the edge was not loaded in eager-loading.

type CityGroupBy 

type CityGroupBy struct {
	// contains filtered or unexported fields
}

CityGroupBy is the group-by builder for City entities.

func (*CityGroupBy) Aggregate 

func (cgb *CityGroupBy) Aggregate(fns ...AggregateFunc) *CityGroupBy

Aggregate adds the given aggregation functions to the group-by query.

func (*CityGroupBy) Bool 

func (cgb *CityGroupBy) Bool(ctx context.Context) (_ bool, err error)

Bool returns a single bool from a group-by query. It is only allowed when executing a group-by query with one field.

func (*CityGroupBy) BoolX 

func (cgb *CityGroupBy) BoolX(ctx context.Context) bool

BoolX is like Bool, but panics if an error occurs.

func (*CityGroupBy) Bools 

func (cgb *CityGroupBy) Bools(ctx context.Context) ([]bool, error)

Bools returns list of bools from group-by. It is only allowed when executing a group-by query with one field.

func (*CityGroupBy) BoolsX 

func (cgb *CityGroupBy) BoolsX(ctx context.Context) []bool

BoolsX is like Bools, but panics if an error occurs.

func (*CityGroupBy) Float64 

func (cgb *CityGroupBy) Float64(ctx context.Context) (_ float64, err error)

Float64 returns a single float64 from a group-by query. It is only allowed when executing a group-by query with one field.

func (*CityGroupBy) Float64X 

func (cgb *CityGroupBy) Float64X(ctx context.Context) float64

Float64X is like Float64, but panics if an error occurs.

func (*CityGroupBy) Float64s 

func (cgb *CityGroupBy) Float64s(ctx context.Context) ([]float64, error)

Float64s returns list of float64s from group-by. It is only allowed when executing a group-by query with one field.

func (*CityGroupBy) Float64sX 

func (cgb *CityGroupBy) Float64sX(ctx context.Context) []float64

Float64sX is like Float64s, but panics if an error occurs.

func (*CityGroupBy) Int 

func (cgb *CityGroupBy) Int(ctx context.Context) (_ int, err error)

Int returns a single int from a group-by query. It is only allowed when executing a group-by query with one field.

func (*CityGroupBy) IntX 

func (cgb *CityGroupBy) IntX(ctx context.Context) int

IntX is like Int, but panics if an error occurs.

func (*CityGroupBy) Ints 

func (cgb *CityGroupBy) Ints(ctx context.Context) ([]int, error)

Ints returns list of ints from group-by. It is only allowed when executing a group-by query with one field.

func (*CityGroupBy) IntsX 

func (cgb *CityGroupBy) IntsX(ctx context.Context) []int

IntsX is like Ints, but panics if an error occurs.

func (*CityGroupBy) Scan 

func (cgb *CityGroupBy) Scan(ctx context.Context, v interface{}) error

Scan applies the group-by query and scans the result into the given value.

func (*CityGroupBy) ScanX 

func (cgb *CityGroupBy) ScanX(ctx context.Context, v interface{})

ScanX is like Scan, but panics if an error occurs.

func (*CityGroupBy) String 

func (cgb *CityGroupBy) String(ctx context.Context) (_ string, err error)

String returns a single string from a group-by query. It is only allowed when executing a group-by query with one field.

func (*CityGroupBy) StringX 

func (cgb *CityGroupBy) StringX(ctx context.Context) string

StringX is like String, but panics if an error occurs.

func (*CityGroupBy) Strings 

func (cgb *CityGroupBy) Strings(ctx context.Context) ([]string, error)

Strings returns list of strings from group-by. It is only allowed when executing a group-by query with one field.

func (*CityGroupBy) StringsX 

func (cgb *CityGroupBy) StringsX(ctx context.Context) []string

StringsX is like Strings, but panics if an error occurs.

type CityMutation 

type CityMutation struct {
	// contains filtered or unexported fields
}

CityMutation represents an operation that mutates the City nodes in the graph.

func (*CityMutation) AddField 

func (m *CityMutation) AddField(name string, value ent.Value) error

AddField adds the value to the field with the given name. It returns an error if the field is not defined in the schema, or if the type mismatched the field type.

func (*CityMutation) AddStreetIDs 

func (m *CityMutation) AddStreetIDs(ids ...int)

AddStreetIDs adds the "streets" edge to the Street entity by ids.

func (*CityMutation) AddedEdges 

func (m *CityMutation) AddedEdges() []string

AddedEdges returns all edge names that were set/added in this mutation.

func (*CityMutation) AddedField 

func (m *CityMutation) AddedField(name string) (ent.Value, bool)

AddedField returns the numeric value that was incremented/decremented on a field with the given name. The second boolean return value indicates that this field was not set, or was not defined in the schema.

func (*CityMutation) AddedFields 

func (m *CityMutation) AddedFields() []string

AddedFields returns all numeric fields that were incremented/decremented during this mutation.

func (*CityMutation) AddedIDs 

func (m *CityMutation) AddedIDs(name string) []ent.Value

AddedIDs returns all IDs (to other nodes) that were added for the given edge name in this mutation.

func (*CityMutation) ClearEdge 

func (m *CityMutation) ClearEdge(name string) error

ClearEdge clears the value of the edge with the given name. It returns an error if that edge is not defined in the schema.

func (*CityMutation) ClearField 

func (m *CityMutation) ClearField(name string) error

ClearField clears the value of the field with the given name. It returns an error if the field is not defined in the schema.

func (*CityMutation) ClearStreets 

func (m *CityMutation) ClearStreets()

ClearStreets clears the "streets" edge to the Street entity.

func (*CityMutation) ClearedEdges 

func (m *CityMutation) ClearedEdges() []string

ClearedEdges returns all edge names that were cleared in this mutation.

func (*CityMutation) ClearedFields 

func (m *CityMutation) ClearedFields() []string

ClearedFields returns all nullable fields that were cleared during this mutation.

func (CityMutation) Client 

func (m CityMutation) Client() *Client

Client returns a new `ent.Client` from the mutation. If the mutation was executed in a transaction (ent.Tx), a transactional client is returned.

func (*CityMutation) EdgeCleared 

func (m *CityMutation) EdgeCleared(name string) bool

EdgeCleared returns a boolean which indicates if the edge with the given name was cleared in this mutation.

func (*CityMutation) Field 

func (m *CityMutation) Field(name string) (ent.Value, bool)

Field returns the value of a field with the given name. The second boolean return value indicates that this field was not set, or was not defined in the schema.

func (*CityMutation) FieldCleared 

func (m *CityMutation) FieldCleared(name string) bool

FieldCleared returns a boolean indicating if a field with the given name was cleared in this mutation.

func (*CityMutation) Fields 

func (m *CityMutation) Fields() []string

Fields returns all fields that were changed during this mutation. Note that in order to get all numeric fields that were incremented/decremented, call AddedFields().

func (*CityMutation) ID 

func (m *CityMutation) ID() (id int, exists bool)

ID returns the ID value in the mutation. Note that the ID is only available if it was provided to the builder.

func (*CityMutation) Name 

func (m *CityMutation) Name() (r string, exists bool)

Name returns the value of the "name" field in the mutation.

func (*CityMutation) OldField 

func (m *CityMutation) OldField(ctx context.Context, name string) (ent.Value, error)

OldField returns the old value of the field from the database. An error is returned if the mutation operation is not UpdateOne, or the query to the database failed.

func (*CityMutation) OldName 

func (m *CityMutation) OldName(ctx context.Context) (v string, err error)

OldName returns the old "name" field's value of the City entity. If the City object wasn't provided to the builder, the object is fetched from the database. An error is returned if the mutation operation is not UpdateOne, or the database query fails.

func (*CityMutation) Op 

func (m *CityMutation) Op() Op

Op returns the operation name.

func (*CityMutation) RemoveStreetIDs 

func (m *CityMutation) RemoveStreetIDs(ids ...int)

RemoveStreetIDs removes the "streets" edge to the Street entity by IDs.

func (*CityMutation) RemovedEdges 

func (m *CityMutation) RemovedEdges() []string

RemovedEdges returns all edge names that were removed in this mutation.

func (*CityMutation) RemovedIDs 

func (m *CityMutation) RemovedIDs(name string) []ent.Value

RemovedIDs returns all IDs (to other nodes) that were removed for the edge with the given name in this mutation.

func (*CityMutation) RemovedStreetsIDs 

func (m *CityMutation) RemovedStreetsIDs() (ids []int)

RemovedStreets returns the removed IDs of the "streets" edge to the Street entity.

func (*CityMutation) ResetEdge 

func (m *CityMutation) ResetEdge(name string) error

ResetEdge resets all changes to the edge with the given name in this mutation. It returns an error if the edge is not defined in the schema.

func (*CityMutation) ResetField 

func (m *CityMutation) ResetField(name string) error

ResetField resets all changes in the mutation for the field with the given name. It returns an error if the field is not defined in the schema.

func (*CityMutation) ResetName 

func (m *CityMutation) ResetName()

ResetName resets all changes to the "name" field.

func (*CityMutation) ResetStreets 

func (m *CityMutation) ResetStreets()

ResetStreets resets all changes to the "streets" edge.

func (*CityMutation) SetField 

func (m *CityMutation) SetField(name string, value ent.Value) error

SetField sets the value of a field with the given name. It returns an error if the field is not defined in the schema, or if the type mismatched the field type.

func (*CityMutation) SetName 

func (m *CityMutation) SetName(s string)

SetName sets the "name" field.

func (*CityMutation) StreetsCleared 

func (m *CityMutation) StreetsCleared() bool

StreetsCleared reports if the "streets" edge to the Street entity was cleared.

func (*CityMutation) StreetsIDs 

func (m *CityMutation) StreetsIDs() (ids []int)

StreetsIDs returns the "streets" edge IDs in the mutation.

func (CityMutation) Tx 

func (m CityMutation) Tx() (*Tx, error)

Tx returns an `ent.Tx` for mutations that were executed in transactions; it returns an error otherwise.

func (*CityMutation) Type 

func (m *CityMutation) Type() string

Type returns the node type of this mutation (City).

type CityQuery 

type CityQuery struct {
	// contains filtered or unexported fields
}

CityQuery is the builder for querying City entities.

func (*CityQuery) All 

func (cq *CityQuery) All(ctx context.Context) ([]*City, error)

All executes the query and returns a list of Cities.

func (*CityQuery) AllX 

func (cq *CityQuery) AllX(ctx context.Context) []*City

AllX is like All, but panics if an error occurs.

func (*CityQuery) Clone 

func (cq *CityQuery) Clone() *CityQuery

Clone returns a duplicate of the CityQuery builder, including all associated steps. It can be used to prepare common query builders and use them differently after the clone is made.

func (*CityQuery) Count 

func (cq *CityQuery) Count(ctx context.Context) (int, error)

Count returns the count of the given query.

func (*CityQuery) CountX 

func (cq *CityQuery) CountX(ctx context.Context) int

CountX is like Count, but panics if an error occurs.

func (*CityQuery) Exist 

func (cq *CityQuery) Exist(ctx context.Context) (bool, error)

Exist returns true if the query has elements in the graph.

func (*CityQuery) ExistX 

func (cq *CityQuery) ExistX(ctx context.Context) bool

ExistX is like Exist, but panics if an error occurs.

func (*CityQuery) First 

func (cq *CityQuery) First(ctx context.Context) (*City, error)

First returns the first City entity from the query. Returns a *NotFoundError when no City was found.

func (*CityQuery) FirstID 

func (cq *CityQuery) FirstID(ctx context.Context) (id int, err error)

FirstID returns the first City ID from the query. Returns a *NotFoundError when no City ID was found.

func (*CityQuery) FirstIDX 

func (cq *CityQuery) FirstIDX(ctx context.Context) int

FirstIDX is like FirstID, but panics if an error occurs.

func (*CityQuery) FirstX 

func (cq *CityQuery) FirstX(ctx context.Context) *City

FirstX is like First, but panics if an error occurs.

func (*CityQuery) GroupBy 

func (cq *CityQuery) GroupBy(field string, fields ...string) *CityGroupBy

GroupBy is used to group vertices by one or more fields/columns. It is often used with aggregate functions, like: count, max, mean, min, sum.

Example: 

var v []struct {
	Name string `json:"name,omitempty"`
	Count int `json:"count,omitempty"`
}

client.City.Query().
	GroupBy(city.FieldName).
	Aggregate(ent.Count()).
	Scan(ctx, &v)

func (*CityQuery) IDs 

func (cq *CityQuery) IDs(ctx context.Context) ([]int, error)

IDs executes the query and returns a list of City IDs.

func (*CityQuery) IDsX 

func (cq *CityQuery) IDsX(ctx context.Context) []int

IDsX is like IDs, but panics if an error occurs.

func (*CityQuery) Limit 

func (cq *CityQuery) Limit(limit int) *CityQuery

Limit adds a limit step to the query.

func (*CityQuery) Offset 

func (cq *CityQuery) Offset(offset int) *CityQuery

Offset adds an offset step to the query.

func (*CityQuery) Only 

func (cq *CityQuery) Only(ctx context.Context) (*City, error)

Only returns a single City entity found by the query, ensuring it only returns one. Returns a *NotSingularError when exactly one City entity is not found. Returns a *NotFoundError when no City entities are found.

func (*CityQuery) OnlyID 

func (cq *CityQuery) OnlyID(ctx context.Context) (id int, err error)

OnlyID is like Only, but returns the only City ID in the query. Returns a *NotSingularError when exactly one City ID is not found. Returns a *NotFoundError when no entities are found.

func (*CityQuery) OnlyIDX 

func (cq *CityQuery) OnlyIDX(ctx context.Context) int

OnlyIDX is like OnlyID, but panics if an error occurs.

func (*CityQuery) OnlyX 

func (cq *CityQuery) OnlyX(ctx context.Context) *City

OnlyX is like Only, but panics if an error occurs.

func (*CityQuery) Order 

func (cq *CityQuery) Order(o ...OrderFunc) *CityQuery

Order adds an order step to the query.

func (*CityQuery) QueryStreets 

func (cq *CityQuery) QueryStreets() *StreetQuery

QueryStreets chains the current query on the "streets" edge.

func (*CityQuery) Select 

func (cq *CityQuery) Select(field string, fields ...string) *CitySelect

Select allows the selection one or more fields/columns for the given query, instead of selecting all fields in the entity.

Example: 

var v []struct {
	Name string `json:"name,omitempty"`
}

client.City.Query().
	Select(city.FieldName).
	Scan(ctx, &v)

func (*CityQuery) Unique added in v0.8.0 

func (cq *CityQuery) Unique(unique bool) *CityQuery

Unique configures the query builder to filter duplicate records on query. By default, unique is set to true, and can be disabled using this method.

func (*CityQuery) Where 

func (cq *CityQuery) Where(ps ...predicate.City) *CityQuery

Where adds a new predicate for the CityQuery builder.

func (*CityQuery) WithStreets 

func (cq *CityQuery) WithStreets(opts ...func(*StreetQuery)) *CityQuery

WithStreets tells the query-builder to eager-load the nodes that are connected to the "streets" edge. The optional arguments are used to configure the query builder of the edge.

type CitySelect 

type CitySelect struct {
	*CityQuery
	// contains filtered or unexported fields
}

CitySelect is the builder for selecting fields of City entities.

func (*CitySelect) Bool 

func (cs *CitySelect) Bool(ctx context.Context) (_ bool, err error)

Bool returns a single bool from a selector. It is only allowed when selecting one field.

func (*CitySelect) BoolX 

func (cs *CitySelect) BoolX(ctx context.Context) bool

BoolX is like Bool, but panics if an error occurs.

func (*CitySelect) Bools 

func (cs *CitySelect) Bools(ctx context.Context) ([]bool, error)

Bools returns list of bools from a selector. It is only allowed when selecting one field.

func (*CitySelect) BoolsX 

func (cs *CitySelect) BoolsX(ctx context.Context) []bool

BoolsX is like Bools, but panics if an error occurs.

func (*CitySelect) Float64 

func (cs *CitySelect) Float64(ctx context.Context) (_ float64, err error)

Float64 returns a single float64 from a selector. It is only allowed when selecting one field.

func (*CitySelect) Float64X 

func (cs *CitySelect) Float64X(ctx context.Context) float64

Float64X is like Float64, but panics if an error occurs.

func (*CitySelect) Float64s 

func (cs *CitySelect) Float64s(ctx context.Context) ([]float64, error)

Float64s returns list of float64s from a selector. It is only allowed when selecting one field.

func (*CitySelect) Float64sX 

func (cs *CitySelect) Float64sX(ctx context.Context) []float64

Float64sX is like Float64s, but panics if an error occurs.

func (*CitySelect) Int 

func (cs *CitySelect) Int(ctx context.Context) (_ int, err error)

Int returns a single int from a selector. It is only allowed when selecting one field.

func (*CitySelect) IntX 

func (cs *CitySelect) IntX(ctx context.Context) int

IntX is like Int, but panics if an error occurs.

func (*CitySelect) Ints 

func (cs *CitySelect) Ints(ctx context.Context) ([]int, error)

Ints returns list of ints from a selector. It is only allowed when selecting one field.

func (*CitySelect) IntsX 

func (cs *CitySelect) IntsX(ctx context.Context) []int

IntsX is like Ints, but panics if an error occurs.

func (*CitySelect) Scan 

func (cs *CitySelect) Scan(ctx context.Context, v interface{}) error

Scan applies the selector query and scans the result into the given value.

func (*CitySelect) ScanX 

func (cs *CitySelect) ScanX(ctx context.Context, v interface{})

ScanX is like Scan, but panics if an error occurs.

func (*CitySelect) String 

func (cs *CitySelect) String(ctx context.Context) (_ string, err error)

String returns a single string from a selector. It is only allowed when selecting one field.

func (*CitySelect) StringX 

func (cs *CitySelect) StringX(ctx context.Context) string

StringX is like String, but panics if an error occurs.

func (*CitySelect) Strings 

func (cs *CitySelect) Strings(ctx context.Context) ([]string, error)

Strings returns list of strings from a selector. It is only allowed when selecting one field.

func (*CitySelect) StringsX 

func (cs *CitySelect) StringsX(ctx context.Context) []string

StringsX is like Strings, but panics if an error occurs.

type CityUpdate 

type CityUpdate struct {
	// contains filtered or unexported fields
}

CityUpdate is the builder for updating City entities.

func (*CityUpdate) AddStreetIDs 

func (cu *CityUpdate) AddStreetIDs(ids ...int) *CityUpdate

AddStreetIDs adds the "streets" edge to the Street entity by IDs.

func (*CityUpdate) AddStreets 

func (cu *CityUpdate) AddStreets(s ...*Street) *CityUpdate

AddStreets adds the "streets" edges to the Street entity.

func (*CityUpdate) ClearStreets 

func (cu *CityUpdate) ClearStreets() *CityUpdate

ClearStreets clears all "streets" edges to the Street entity.

func (*CityUpdate) Exec 

func (cu *CityUpdate) Exec(ctx context.Context) error

Exec executes the query.

func (*CityUpdate) ExecX 

func (cu *CityUpdate) ExecX(ctx context.Context)

ExecX is like Exec, but panics if an error occurs.

func (*CityUpdate) Mutation 

func (cu *CityUpdate) Mutation() *CityMutation

Mutation returns the CityMutation object of the builder.

func (*CityUpdate) RemoveStreetIDs 

func (cu *CityUpdate) RemoveStreetIDs(ids ...int) *CityUpdate

RemoveStreetIDs removes the "streets" edge to Street entities by IDs.

func (*CityUpdate) RemoveStreets 

func (cu *CityUpdate) RemoveStreets(s ...*Street) *CityUpdate

RemoveStreets removes "streets" edges to Street entities.

func (*CityUpdate) Save 

func (cu *CityUpdate) Save(ctx context.Context) (int, error)

Save executes the query and returns the number of nodes affected by the update operation.

func (*CityUpdate) SaveX 

func (cu *CityUpdate) SaveX(ctx context.Context) int

SaveX is like Save, but panics if an error occurs.

func (*CityUpdate) SetName 

func (cu *CityUpdate) SetName(s string) *CityUpdate

SetName sets the "name" field.

func (*CityUpdate) Where 

func (cu *CityUpdate) Where(ps ...predicate.City) *CityUpdate

Where adds a new predicate for the CityUpdate builder.

type CityUpdateOne 

type CityUpdateOne struct {
	// contains filtered or unexported fields
}

CityUpdateOne is the builder for updating a single City entity.

func (*CityUpdateOne) AddStreetIDs 

func (cuo *CityUpdateOne) AddStreetIDs(ids ...int) *CityUpdateOne

AddStreetIDs adds the "streets" edge to the Street entity by IDs.

func (*CityUpdateOne) AddStreets 

func (cuo *CityUpdateOne) AddStreets(s ...*Street) *CityUpdateOne

AddStreets adds the "streets" edges to the Street entity.

func (*CityUpdateOne) ClearStreets 

func (cuo *CityUpdateOne) ClearStreets() *CityUpdateOne

ClearStreets clears all "streets" edges to the Street entity.

func (*CityUpdateOne) Exec 

func (cuo *CityUpdateOne) Exec(ctx context.Context) error

Exec executes the query on the entity.

func (*CityUpdateOne) ExecX 

func (cuo *CityUpdateOne) ExecX(ctx context.Context)

ExecX is like Exec, but panics if an error occurs.

func (*CityUpdateOne) Mutation 

func (cuo *CityUpdateOne) Mutation() *CityMutation

Mutation returns the CityMutation object of the builder.

func (*CityUpdateOne) RemoveStreetIDs 

func (cuo *CityUpdateOne) RemoveStreetIDs(ids ...int) *CityUpdateOne

RemoveStreetIDs removes the "streets" edge to Street entities by IDs.

func (*CityUpdateOne) RemoveStreets 

func (cuo *CityUpdateOne) RemoveStreets(s ...*Street) *CityUpdateOne

RemoveStreets removes "streets" edges to Street entities.

func (*CityUpdateOne) Save 

func (cuo *CityUpdateOne) Save(ctx context.Context) (*City, error)

Save executes the query and returns the updated City entity.

func (*CityUpdateOne) SaveX 

func (cuo *CityUpdateOne) SaveX(ctx context.Context) *City

SaveX is like Save, but panics if an error occurs.

func (*CityUpdateOne) Select added in v0.8.0 

func (cuo *CityUpdateOne) Select(field string, fields ...string) *CityUpdateOne

Select allows selecting one or more fields (columns) of the returned entity. The default is selecting all fields defined in the entity schema.

func (*CityUpdateOne) SetName 

func (cuo *CityUpdateOne) SetName(s string) *CityUpdateOne

SetName sets the "name" field.

type Client 

type Client struct {

	// Schema is the client for creating, migrating and dropping schema.
	Schema *migrate.Schema
	// City is the client for interacting with the City builders.
	City *CityClient
	// Street is the client for interacting with the Street builders.
	Street *StreetClient
	// contains filtered or unexported fields
}

Client is the client that holds all ent builders.

func FromContext 

func FromContext(ctx context.Context) *Client

FromContext returns a Client stored inside a context, or nil if there isn't one.

func NewClient 

func NewClient(opts ...Option) *Client

NewClient creates a new client configured with the given options.

func Open 

func Open(driverName, dataSourceName string, options ...Option) (*Client, error)

Open opens a database/sql.DB specified by the driver name and the data source name, and returns a new client attached to it. Optional parameters can be added for configuring the client.

func (*Client) BeginTx 

func (c *Client) BeginTx(ctx context.Context, opts *sql.TxOptions) (*Tx, error)

BeginTx returns a transactional client with specified options.

func (*Client) Close 

func (c *Client) Close() error

Close closes the database connection and prevents new queries from starting.

func (*Client) Debug 

func (c *Client) Debug() *Client

Debug returns a new debug-client. It's used to get verbose logging on specific operations. 

client.Debug().
	City.
	Query().
	Count(ctx)

func (*Client) Tx 

func (c *Client) Tx(ctx context.Context) (*Tx, error)

Tx returns a new transactional client. The provided context is used until the transaction is committed or rolled back.

func (*Client) Use 

func (c *Client) Use(hooks ...Hook)

Use adds the mutation hooks to all the entity clients. In order to add hooks to a specific client, call: `client.Node.Use(...)`.

type CommitFunc 

type CommitFunc func(context.Context, *Tx) error

The CommitFunc type is an adapter to allow the use of ordinary function as a Committer. If f is a function with the appropriate signature, CommitFunc(f) is a Committer that calls f.

func (CommitFunc) Commit 

func (f CommitFunc) Commit(ctx context.Context, tx *Tx) error

Commit calls f(ctx, m).

type CommitHook 

type CommitHook func(Committer) Committer

CommitHook defines the "commit middleware". A function that gets a Committer and returns a Committer. For example: 

hook := func(next ent.Committer) ent.Committer {
	return ent.CommitFunc(func(context.Context, tx *ent.Tx) error {
		// Do some stuff before.
		if err := next.Commit(ctx, tx); err != nil {
			return err
		}
		// Do some stuff after.
		return nil
	})
}

type Committer 

type Committer interface {
	Commit(context.Context, *Tx) error
}

Committer is the interface that wraps the Committer method.

type ConstraintError 

type ConstraintError struct {
	// contains filtered or unexported fields
}

ConstraintError returns when trying to create/update one or more entities and one or more of their constraints failed. For example, violation of edge or field uniqueness.

func (ConstraintError) Error 

func (e ConstraintError) Error() string

Error implements the error interface.

func (*ConstraintError) Unwrap 

func (e *ConstraintError) Unwrap() error

Unwrap implements the errors.Wrapper interface.

type Hook 

type Hook = ent.Hook

ent aliases to avoid import conflicts in user's code.

type MutateFunc 

type MutateFunc = ent.MutateFunc

ent aliases to avoid import conflicts in user's code.

type Mutation 

type Mutation = ent.Mutation

ent aliases to avoid import conflicts in user's code.

type Mutator 

type Mutator = ent.Mutator

ent aliases to avoid import conflicts in user's code.

type NotFoundError 

type NotFoundError struct {
	// contains filtered or unexported fields
}

NotFoundError returns when trying to fetch a specific entity and it was not found in the database.

func (*NotFoundError) Error 

func (e *NotFoundError) Error() string

Error implements the error interface.

type NotLoadedError 

type NotLoadedError struct {
	// contains filtered or unexported fields
}

NotLoadedError returns when trying to get a node that was not loaded by the query.

func (*NotLoadedError) Error 

func (e *NotLoadedError) Error() string

Error implements the error interface.

type NotSingularError 

type NotSingularError struct {
	// contains filtered or unexported fields
}

NotSingularError returns when trying to fetch a singular entity and more then one was found in the database.

func (*NotSingularError) Error 

func (e *NotSingularError) Error() string

Error implements the error interface.

type Op 

type Op = ent.Op

ent aliases to avoid import conflicts in user's code.

type Option 

type Option func(*config)

Option function to configure the client.

func Debug 

func Debug() Option

Debug enables debug logging on the ent.Driver.

func Driver 

func Driver(driver dialect.Driver) Option

Driver configures the client driver.

func Log 

func Log(fn func(...interface{})) Option

Log sets the logging function for debug mode.

type OrderFunc 

type OrderFunc func(*sql.Selector)

OrderFunc applies an ordering on the sql selector.

func Asc 

func Asc(fields ...string) OrderFunc

Asc applies the given fields in ASC order.

func Desc 

func Desc(fields ...string) OrderFunc

Desc applies the given fields in DESC order.

type Policy 

type Policy = ent.Policy

ent aliases to avoid import conflicts in user's code.

type Query 

type Query = ent.Query

ent aliases to avoid import conflicts in user's code.

type RollbackFunc 

type RollbackFunc func(context.Context, *Tx) error

The RollbackFunc type is an adapter to allow the use of ordinary function as a Rollbacker. If f is a function with the appropriate signature, RollbackFunc(f) is a Rollbacker that calls f.

func (RollbackFunc) Rollback 

func (f RollbackFunc) Rollback(ctx context.Context, tx *Tx) error

Rollback calls f(ctx, m).

type RollbackHook 

type RollbackHook func(Rollbacker) Rollbacker

RollbackHook defines the "rollback middleware". A function that gets a Rollbacker and returns a Rollbacker. For example: 

hook := func(next ent.Rollbacker) ent.Rollbacker {
	return ent.RollbackFunc(func(context.Context, tx *ent.Tx) error {
		// Do some stuff before.
		if err := next.Rollback(ctx, tx); err != nil {
			return err
		}
		// Do some stuff after.
		return nil
	})
}

type Rollbacker 

type Rollbacker interface {
	Rollback(context.Context, *Tx) error
}

Rollbacker is the interface that wraps the Rollbacker method.

type Street 

type Street struct {

	// ID of the ent.
	ID int `json:"id,omitempty"`
	// Name holds the value of the "name" field.
	Name string `json:"name,omitempty"`
	// Edges holds the relations/edges for other nodes in the graph.
	// The values are being populated by the StreetQuery when eager-loading is set.
	Edges StreetEdges `json:"edges"`
	// contains filtered or unexported fields
}

Street is the model entity for the Street schema.

func (*Street) QueryCity 

func (s *Street) QueryCity() *CityQuery

QueryCity queries the "city" edge of the Street entity.

func (*Street) String 

func (s *Street) String() string

String implements the fmt.Stringer.

func (*Street) Unwrap 

func (s *Street) Unwrap() *Street

Unwrap unwraps the Street entity that was returned from a transaction after it was closed, so that all future queries will be executed through the driver which created the transaction.

func (*Street) Update 

func (s *Street) Update() *StreetUpdateOne

Update returns a builder for updating this Street. Note that you need to call Street.Unwrap() before calling this method if this Street was returned from a transaction, and the transaction was committed or rolled back.

type StreetClient 

type StreetClient struct {
	// contains filtered or unexported fields
}

StreetClient is a client for the Street schema.

func NewStreetClient 

func NewStreetClient(c config) *StreetClient

NewStreetClient returns a client for the Street from the given config.

func (*StreetClient) Create 

func (c *StreetClient) Create() *StreetCreate

Create returns a create builder for Street.

func (*StreetClient) CreateBulk 

func (c *StreetClient) CreateBulk(builders ...*StreetCreate) *StreetCreateBulk

CreateBulk returns a builder for creating a bulk of Street entities.

func (*StreetClient) Delete 

func (c *StreetClient) Delete() *StreetDelete

Delete returns a delete builder for Street.

func (*StreetClient) DeleteOne 

func (c *StreetClient) DeleteOne(s *Street) *StreetDeleteOne

DeleteOne returns a delete builder for the given entity.

func (*StreetClient) DeleteOneID 

func (c *StreetClient) DeleteOneID(id int) *StreetDeleteOne

DeleteOneID returns a delete builder for the given id.

func (*StreetClient) Get 

func (c *StreetClient) Get(ctx context.Context, id int) (*Street, error)

Get returns a Street entity by its id.

func (*StreetClient) GetX 

func (c *StreetClient) GetX(ctx context.Context, id int) *Street

GetX is like Get, but panics if an error occurs.

func (*StreetClient) Hooks 

func (c *StreetClient) Hooks() []Hook

Hooks returns the client hooks.

func (*StreetClient) Query 

func (c *StreetClient) Query() *StreetQuery

Query returns a query builder for Street.

func (*StreetClient) QueryCity 

func (c *StreetClient) QueryCity(s *Street) *CityQuery

QueryCity queries the city edge of a Street.

func (*StreetClient) Update 

func (c *StreetClient) Update() *StreetUpdate

Update returns an update builder for Street.

func (*StreetClient) UpdateOne 

func (c *StreetClient) UpdateOne(s *Street) *StreetUpdateOne

UpdateOne returns an update builder for the given entity.

func (*StreetClient) UpdateOneID 

func (c *StreetClient) UpdateOneID(id int) *StreetUpdateOne

UpdateOneID returns an update builder for the given id.

func (*StreetClient) Use 

func (c *StreetClient) Use(hooks ...Hook)

Use adds a list of mutation hooks to the hooks stack. A call to `Use(f, g, h)` equals to `street.Hooks(f(g(h())))`.

type StreetCreate 

type StreetCreate struct {
	// contains filtered or unexported fields
}

StreetCreate is the builder for creating a Street entity.

func (*StreetCreate) Mutation 

func (sc *StreetCreate) Mutation() *StreetMutation

Mutation returns the StreetMutation object of the builder.

func (*StreetCreate) Save 

func (sc *StreetCreate) Save(ctx context.Context) (*Street, error)

Save creates the Street in the database.

func (*StreetCreate) SaveX 

func (sc *StreetCreate) SaveX(ctx context.Context) *Street

SaveX calls Save and panics if Save returns an error.

func (*StreetCreate) SetCity 

func (sc *StreetCreate) SetCity(c *City) *StreetCreate

SetCity sets the "city" edge to the City entity.

func (*StreetCreate) SetCityID 

func (sc *StreetCreate) SetCityID(id int) *StreetCreate

SetCityID sets the "city" edge to the City entity by ID.

func (*StreetCreate) SetName 

func (sc *StreetCreate) SetName(s string) *StreetCreate

SetName sets the "name" field.

func (*StreetCreate) SetNillableCityID 

func (sc *StreetCreate) SetNillableCityID(id *int) *StreetCreate

SetNillableCityID sets the "city" edge to the City entity by ID if the given value is not nil.

type StreetCreateBulk 

type StreetCreateBulk struct {
	// contains filtered or unexported fields
}

StreetCreateBulk is the builder for creating many Street entities in bulk.

func (*StreetCreateBulk) Save 

func (scb *StreetCreateBulk) Save(ctx context.Context) ([]*Street, error)

Save creates the Street entities in the database.

func (*StreetCreateBulk) SaveX 

func (scb *StreetCreateBulk) SaveX(ctx context.Context) []*Street

SaveX is like Save, but panics if an error occurs.

type StreetDelete 

type StreetDelete struct {
	// contains filtered or unexported fields
}

StreetDelete is the builder for deleting a Street entity.

func (*StreetDelete) Exec 

func (sd *StreetDelete) Exec(ctx context.Context) (int, error)

Exec executes the deletion query and returns how many vertices were deleted.

func (*StreetDelete) ExecX 

func (sd *StreetDelete) ExecX(ctx context.Context) int

ExecX is like Exec, but panics if an error occurs.

func (*StreetDelete) Where 

func (sd *StreetDelete) Where(ps ...predicate.Street) *StreetDelete

Where adds a new predicate to the StreetDelete builder.

type StreetDeleteOne 

type StreetDeleteOne struct {
	// contains filtered or unexported fields
}

StreetDeleteOne is the builder for deleting a single Street entity.

func (*StreetDeleteOne) Exec 

func (sdo *StreetDeleteOne) Exec(ctx context.Context) error

Exec executes the deletion query.

func (*StreetDeleteOne) ExecX 

func (sdo *StreetDeleteOne) ExecX(ctx context.Context)

ExecX is like Exec, but panics if an error occurs.

type StreetEdges 

type StreetEdges struct {
	// City holds the value of the city edge.
	City *City `json:"city,omitempty"`
	// contains filtered or unexported fields
}

StreetEdges holds the relations/edges for other nodes in the graph.

func (StreetEdges) CityOrErr 

func (e StreetEdges) CityOrErr() (*City, error)

CityOrErr returns the City value or an error if the edge was not loaded in eager-loading, or loaded but was not found.

type StreetGroupBy 

type StreetGroupBy struct {
	// contains filtered or unexported fields
}

StreetGroupBy is the group-by builder for Street entities.

func (*StreetGroupBy) Aggregate 

func (sgb *StreetGroupBy) Aggregate(fns ...AggregateFunc) *StreetGroupBy

Aggregate adds the given aggregation functions to the group-by query.

func (*StreetGroupBy) Bool 

func (sgb *StreetGroupBy) Bool(ctx context.Context) (_ bool, err error)

Bool returns a single bool from a group-by query. It is only allowed when executing a group-by query with one field.

func (*StreetGroupBy) BoolX 

func (sgb *StreetGroupBy) BoolX(ctx context.Context) bool

BoolX is like Bool, but panics if an error occurs.

func (*StreetGroupBy) Bools 

func (sgb *StreetGroupBy) Bools(ctx context.Context) ([]bool, error)

Bools returns list of bools from group-by. It is only allowed when executing a group-by query with one field.

func (*StreetGroupBy) BoolsX 

func (sgb *StreetGroupBy) BoolsX(ctx context.Context) []bool

BoolsX is like Bools, but panics if an error occurs.

func (*StreetGroupBy) Float64 

func (sgb *StreetGroupBy) Float64(ctx context.Context) (_ float64, err error)

Float64 returns a single float64 from a group-by query. It is only allowed when executing a group-by query with one field.

func (*StreetGroupBy) Float64X 

func (sgb *StreetGroupBy) Float64X(ctx context.Context) float64

Float64X is like Float64, but panics if an error occurs.

func (*StreetGroupBy) Float64s 

func (sgb *StreetGroupBy) Float64s(ctx context.Context) ([]float64, error)

Float64s returns list of float64s from group-by. It is only allowed when executing a group-by query with one field.

func (*StreetGroupBy) Float64sX 

func (sgb *StreetGroupBy) Float64sX(ctx context.Context) []float64

Float64sX is like Float64s, but panics if an error occurs.

func (*StreetGroupBy) Int 

func (sgb *StreetGroupBy) Int(ctx context.Context) (_ int, err error)

Int returns a single int from a group-by query. It is only allowed when executing a group-by query with one field.

func (*StreetGroupBy) IntX 

func (sgb *StreetGroupBy) IntX(ctx context.Context) int

IntX is like Int, but panics if an error occurs.

func (*StreetGroupBy) Ints 

func (sgb *StreetGroupBy) Ints(ctx context.Context) ([]int, error)

Ints returns list of ints from group-by. It is only allowed when executing a group-by query with one field.

func (*StreetGroupBy) IntsX 

func (sgb *StreetGroupBy) IntsX(ctx context.Context) []int

IntsX is like Ints, but panics if an error occurs.

func (*StreetGroupBy) Scan 

func (sgb *StreetGroupBy) Scan(ctx context.Context, v interface{}) error

Scan applies the group-by query and scans the result into the given value.

func (*StreetGroupBy) ScanX 

func (sgb *StreetGroupBy) ScanX(ctx context.Context, v interface{})

ScanX is like Scan, but panics if an error occurs.

func (*StreetGroupBy) String 

func (sgb *StreetGroupBy) String(ctx context.Context) (_ string, err error)

String returns a single string from a group-by query. It is only allowed when executing a group-by query with one field.

func (*StreetGroupBy) StringX 

func (sgb *StreetGroupBy) StringX(ctx context.Context) string

StringX is like String, but panics if an error occurs.

func (*StreetGroupBy) Strings 

func (sgb *StreetGroupBy) Strings(ctx context.Context) ([]string, error)

Strings returns list of strings from group-by. It is only allowed when executing a group-by query with one field.

func (*StreetGroupBy) StringsX 

func (sgb *StreetGroupBy) StringsX(ctx context.Context) []string

StringsX is like Strings, but panics if an error occurs.

type StreetMutation 

type StreetMutation struct {
	// contains filtered or unexported fields
}

StreetMutation represents an operation that mutates the Street nodes in the graph.

func (*StreetMutation) AddField 

func (m *StreetMutation) AddField(name string, value ent.Value) error

AddField adds the value to the field with the given name. It returns an error if the field is not defined in the schema, or if the type mismatched the field type.

func (*StreetMutation) AddedEdges 

func (m *StreetMutation) AddedEdges() []string

AddedEdges returns all edge names that were set/added in this mutation.

func (*StreetMutation) AddedField 

func (m *StreetMutation) AddedField(name string) (ent.Value, bool)

AddedField returns the numeric value that was incremented/decremented on a field with the given name. The second boolean return value indicates that this field was not set, or was not defined in the schema.

func (*StreetMutation) AddedFields 

func (m *StreetMutation) AddedFields() []string

AddedFields returns all numeric fields that were incremented/decremented during this mutation.

func (*StreetMutation) AddedIDs 

func (m *StreetMutation) AddedIDs(name string) []ent.Value

AddedIDs returns all IDs (to other nodes) that were added for the given edge name in this mutation.

func (*StreetMutation) CityCleared 

func (m *StreetMutation) CityCleared() bool

CityCleared reports if the "city" edge to the City entity was cleared.

func (*StreetMutation) CityID 

func (m *StreetMutation) CityID() (id int, exists bool)

CityID returns the "city" edge ID in the mutation.

func (*StreetMutation) CityIDs 

func (m *StreetMutation) CityIDs() (ids []int)

CityIDs returns the "city" edge IDs in the mutation. Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use CityID instead. It exists only for internal usage by the builders.

func (*StreetMutation) ClearCity 

func (m *StreetMutation) ClearCity()

ClearCity clears the "city" edge to the City entity.

func (*StreetMutation) ClearEdge 

func (m *StreetMutation) ClearEdge(name string) error

ClearEdge clears the value of the edge with the given name. It returns an error if that edge is not defined in the schema.

func (*StreetMutation) ClearField 

func (m *StreetMutation) ClearField(name string) error

ClearField clears the value of the field with the given name. It returns an error if the field is not defined in the schema.

func (*StreetMutation) ClearedEdges 

func (m *StreetMutation) ClearedEdges() []string

ClearedEdges returns all edge names that were cleared in this mutation.

func (*StreetMutation) ClearedFields 

func (m *StreetMutation) ClearedFields() []string

ClearedFields returns all nullable fields that were cleared during this mutation.

func (StreetMutation) Client 

func (m StreetMutation) Client() *Client

Client returns a new `ent.Client` from the mutation. If the mutation was executed in a transaction (ent.Tx), a transactional client is returned.

func (*StreetMutation) EdgeCleared 

func (m *StreetMutation) EdgeCleared(name string) bool

EdgeCleared returns a boolean which indicates if the edge with the given name was cleared in this mutation.

func (*StreetMutation) Field 

func (m *StreetMutation) Field(name string) (ent.Value, bool)

Field returns the value of a field with the given name. The second boolean return value indicates that this field was not set, or was not defined in the schema.

func (*StreetMutation) FieldCleared 

func (m *StreetMutation) FieldCleared(name string) bool

FieldCleared returns a boolean indicating if a field with the given name was cleared in this mutation.

func (*StreetMutation) Fields 

func (m *StreetMutation) Fields() []string

Fields returns all fields that were changed during this mutation. Note that in order to get all numeric fields that were incremented/decremented, call AddedFields().

func (*StreetMutation) ID 

func (m *StreetMutation) ID() (id int, exists bool)

ID returns the ID value in the mutation. Note that the ID is only available if it was provided to the builder.

func (*StreetMutation) Name 

func (m *StreetMutation) Name() (r string, exists bool)

Name returns the value of the "name" field in the mutation.

func (*StreetMutation) OldField 

func (m *StreetMutation) OldField(ctx context.Context, name string) (ent.Value, error)

OldField returns the old value of the field from the database. An error is returned if the mutation operation is not UpdateOne, or the query to the database failed.

func (*StreetMutation) OldName 

func (m *StreetMutation) OldName(ctx context.Context) (v string, err error)

OldName returns the old "name" field's value of the Street entity. If the Street object wasn't provided to the builder, the object is fetched from the database. An error is returned if the mutation operation is not UpdateOne, or the database query fails.

func (*StreetMutation) Op 

func (m *StreetMutation) Op() Op

Op returns the operation name.

func (*StreetMutation) RemovedEdges 

func (m *StreetMutation) RemovedEdges() []string

RemovedEdges returns all edge names that were removed in this mutation.

func (*StreetMutation) RemovedIDs 

func (m *StreetMutation) RemovedIDs(name string) []ent.Value

RemovedIDs returns all IDs (to other nodes) that were removed for the edge with the given name in this mutation.

func (*StreetMutation) ResetCity 

func (m *StreetMutation) ResetCity()

ResetCity resets all changes to the "city" edge.

func (*StreetMutation) ResetEdge 

func (m *StreetMutation) ResetEdge(name string) error

ResetEdge resets all changes to the edge with the given name in this mutation. It returns an error if the edge is not defined in the schema.

func (*StreetMutation) ResetField 

func (m *StreetMutation) ResetField(name string) error

ResetField resets all changes in the mutation for the field with the given name. It returns an error if the field is not defined in the schema.

func (*StreetMutation) ResetName 

func (m *StreetMutation) ResetName()

ResetName resets all changes to the "name" field.

func (*StreetMutation) SetCityID 

func (m *StreetMutation) SetCityID(id int)

SetCityID sets the "city" edge to the City entity by id.

func (*StreetMutation) SetField 

func (m *StreetMutation) SetField(name string, value ent.Value) error

SetField sets the value of a field with the given name. It returns an error if the field is not defined in the schema, or if the type mismatched the field type.

func (*StreetMutation) SetName 

func (m *StreetMutation) SetName(s string)

SetName sets the "name" field.

func (StreetMutation) Tx 

func (m StreetMutation) Tx() (*Tx, error)

Tx returns an `ent.Tx` for mutations that were executed in transactions; it returns an error otherwise.

func (*StreetMutation) Type 

func (m *StreetMutation) Type() string

Type returns the node type of this mutation (Street).

type StreetQuery 

type StreetQuery struct {
	// contains filtered or unexported fields
}

StreetQuery is the builder for querying Street entities.

func (*StreetQuery) All 

func (sq *StreetQuery) All(ctx context.Context) ([]*Street, error)

All executes the query and returns a list of Streets.

func (*StreetQuery) AllX 

func (sq *StreetQuery) AllX(ctx context.Context) []*Street

AllX is like All, but panics if an error occurs.

func (*StreetQuery) Clone 

func (sq *StreetQuery) Clone() *StreetQuery

Clone returns a duplicate of the StreetQuery builder, including all associated steps. It can be used to prepare common query builders and use them differently after the clone is made.

func (*StreetQuery) Count 

func (sq *StreetQuery) Count(ctx context.Context) (int, error)

Count returns the count of the given query.

func (*StreetQuery) CountX 

func (sq *StreetQuery) CountX(ctx context.Context) int

CountX is like Count, but panics if an error occurs.

func (*StreetQuery) Exist 

func (sq *StreetQuery) Exist(ctx context.Context) (bool, error)

Exist returns true if the query has elements in the graph.

func (*StreetQuery) ExistX 

func (sq *StreetQuery) ExistX(ctx context.Context) bool

ExistX is like Exist, but panics if an error occurs.

func (*StreetQuery) First 

func (sq *StreetQuery) First(ctx context.Context) (*Street, error)

First returns the first Street entity from the query. Returns a *NotFoundError when no Street was found.

func (*StreetQuery) FirstID 

func (sq *StreetQuery) FirstID(ctx context.Context) (id int, err error)

FirstID returns the first Street ID from the query. Returns a *NotFoundError when no Street ID was found.

func (*StreetQuery) FirstIDX 

func (sq *StreetQuery) FirstIDX(ctx context.Context) int

FirstIDX is like FirstID, but panics if an error occurs.

func (*StreetQuery) FirstX 

func (sq *StreetQuery) FirstX(ctx context.Context) *Street

FirstX is like First, but panics if an error occurs.

func (*StreetQuery) GroupBy 

func (sq *StreetQuery) GroupBy(field string, fields ...string) *StreetGroupBy

GroupBy is used to group vertices by one or more fields/columns. It is often used with aggregate functions, like: count, max, mean, min, sum.

Example: 

var v []struct {
	Name string `json:"name,omitempty"`
	Count int `json:"count,omitempty"`
}

client.Street.Query().
	GroupBy(street.FieldName).
	Aggregate(ent.Count()).
	Scan(ctx, &v)

func (*StreetQuery) IDs 

func (sq *StreetQuery) IDs(ctx context.Context) ([]int, error)

IDs executes the query and returns a list of Street IDs.

func (*StreetQuery) IDsX 

func (sq *StreetQuery) IDsX(ctx context.Context) []int

IDsX is like IDs, but panics if an error occurs.

func (*StreetQuery) Limit 

func (sq *StreetQuery) Limit(limit int) *StreetQuery

Limit adds a limit step to the query.

func (*StreetQuery) Offset 

func (sq *StreetQuery) Offset(offset int) *StreetQuery

Offset adds an offset step to the query.

func (*StreetQuery) Only 

func (sq *StreetQuery) Only(ctx context.Context) (*Street, error)

Only returns a single Street entity found by the query, ensuring it only returns one. Returns a *NotSingularError when exactly one Street entity is not found. Returns a *NotFoundError when no Street entities are found.

func (*StreetQuery) OnlyID 

func (sq *StreetQuery) OnlyID(ctx context.Context) (id int, err error)

OnlyID is like Only, but returns the only Street ID in the query. Returns a *NotSingularError when exactly one Street ID is not found. Returns a *NotFoundError when no entities are found.

func (*StreetQuery) OnlyIDX 

func (sq *StreetQuery) OnlyIDX(ctx context.Context) int

OnlyIDX is like OnlyID, but panics if an error occurs.

func (*StreetQuery) OnlyX 

func (sq *StreetQuery) OnlyX(ctx context.Context) *Street

OnlyX is like Only, but panics if an error occurs.

func (*StreetQuery) Order 

func (sq *StreetQuery) Order(o ...OrderFunc) *StreetQuery

Order adds an order step to the query.

func (*StreetQuery) QueryCity 

func (sq *StreetQuery) QueryCity() *CityQuery

QueryCity chains the current query on the "city" edge.

func (*StreetQuery) Select 

func (sq *StreetQuery) Select(field string, fields ...string) *StreetSelect

Select allows the selection one or more fields/columns for the given query, instead of selecting all fields in the entity.

Example: 

var v []struct {
	Name string `json:"name,omitempty"`
}

client.Street.Query().
	Select(street.FieldName).
	Scan(ctx, &v)

func (*StreetQuery) Unique added in v0.8.0 

func (sq *StreetQuery) Unique(unique bool) *StreetQuery

Unique configures the query builder to filter duplicate records on query. By default, unique is set to true, and can be disabled using this method.

func (*StreetQuery) Where 

func (sq *StreetQuery) Where(ps ...predicate.Street) *StreetQuery

Where adds a new predicate for the StreetQuery builder.

func (*StreetQuery) WithCity 

func (sq *StreetQuery) WithCity(opts ...func(*CityQuery)) *StreetQuery

WithCity tells the query-builder to eager-load the nodes that are connected to the "city" edge. The optional arguments are used to configure the query builder of the edge.

type StreetSelect 

type StreetSelect struct {
	*StreetQuery
	// contains filtered or unexported fields
}

StreetSelect is the builder for selecting fields of Street entities.

func (*StreetSelect) Bool 

func (ss *StreetSelect) Bool(ctx context.Context) (_ bool, err error)

Bool returns a single bool from a selector. It is only allowed when selecting one field.

func (*StreetSelect) BoolX 

func (ss *StreetSelect) BoolX(ctx context.Context) bool

BoolX is like Bool, but panics if an error occurs.

func (*StreetSelect) Bools 

func (ss *StreetSelect) Bools(ctx context.Context) ([]bool, error)

Bools returns list of bools from a selector. It is only allowed when selecting one field.

func (*StreetSelect) BoolsX 

func (ss *StreetSelect) BoolsX(ctx context.Context) []bool

BoolsX is like Bools, but panics if an error occurs.

func (*StreetSelect) Float64 

func (ss *StreetSelect) Float64(ctx context.Context) (_ float64, err error)

Float64 returns a single float64 from a selector. It is only allowed when selecting one field.

func (*StreetSelect) Float64X 

func (ss *StreetSelect) Float64X(ctx context.Context) float64

Float64X is like Float64, but panics if an error occurs.

func (*StreetSelect) Float64s 

func (ss *StreetSelect) Float64s(ctx context.Context) ([]float64, error)

Float64s returns list of float64s from a selector. It is only allowed when selecting one field.

func (*StreetSelect) Float64sX 

func (ss *StreetSelect) Float64sX(ctx context.Context) []float64

Float64sX is like Float64s, but panics if an error occurs.

func (*StreetSelect) Int 

func (ss *StreetSelect) Int(ctx context.Context) (_ int, err error)

Int returns a single int from a selector. It is only allowed when selecting one field.

func (*StreetSelect) IntX 

func (ss *StreetSelect) IntX(ctx context.Context) int

IntX is like Int, but panics if an error occurs.

func (*StreetSelect) Ints 

func (ss *StreetSelect) Ints(ctx context.Context) ([]int, error)

Ints returns list of ints from a selector. It is only allowed when selecting one field.

func (*StreetSelect) IntsX 

func (ss *StreetSelect) IntsX(ctx context.Context) []int

IntsX is like Ints, but panics if an error occurs.

func (*StreetSelect) Scan 

func (ss *StreetSelect) Scan(ctx context.Context, v interface{}) error

Scan applies the selector query and scans the result into the given value.

func (*StreetSelect) ScanX 

func (ss *StreetSelect) ScanX(ctx context.Context, v interface{})

ScanX is like Scan, but panics if an error occurs.

func (*StreetSelect) String 

func (ss *StreetSelect) String(ctx context.Context) (_ string, err error)

String returns a single string from a selector. It is only allowed when selecting one field.

func (*StreetSelect) StringX 

func (ss *StreetSelect) StringX(ctx context.Context) string

StringX is like String, but panics if an error occurs.

func (*StreetSelect) Strings 

func (ss *StreetSelect) Strings(ctx context.Context) ([]string, error)

Strings returns list of strings from a selector. It is only allowed when selecting one field.

func (*StreetSelect) StringsX 

func (ss *StreetSelect) StringsX(ctx context.Context) []string

StringsX is like Strings, but panics if an error occurs.

type StreetUpdate 

type StreetUpdate struct {
	// contains filtered or unexported fields
}

StreetUpdate is the builder for updating Street entities.

func (*StreetUpdate) ClearCity 

func (su *StreetUpdate) ClearCity() *StreetUpdate

ClearCity clears the "city" edge to the City entity.

func (*StreetUpdate) Exec 

func (su *StreetUpdate) Exec(ctx context.Context) error

Exec executes the query.

func (*StreetUpdate) ExecX 

func (su *StreetUpdate) ExecX(ctx context.Context)

ExecX is like Exec, but panics if an error occurs.

func (*StreetUpdate) Mutation 

func (su *StreetUpdate) Mutation() *StreetMutation

Mutation returns the StreetMutation object of the builder.

func (*StreetUpdate) Save 

func (su *StreetUpdate) Save(ctx context.Context) (int, error)

Save executes the query and returns the number of nodes affected by the update operation.

func (*StreetUpdate) SaveX 

func (su *StreetUpdate) SaveX(ctx context.Context) int

SaveX is like Save, but panics if an error occurs.

func (*StreetUpdate) SetCity 

func (su *StreetUpdate) SetCity(c *City) *StreetUpdate

SetCity sets the "city" edge to the City entity.

func (*StreetUpdate) SetCityID 

func (su *StreetUpdate) SetCityID(id int) *StreetUpdate

SetCityID sets the "city" edge to the City entity by ID.

func (*StreetUpdate) SetName 

func (su *StreetUpdate) SetName(s string) *StreetUpdate

SetName sets the "name" field.

func (*StreetUpdate) SetNillableCityID 

func (su *StreetUpdate) SetNillableCityID(id *int) *StreetUpdate

SetNillableCityID sets the "city" edge to the City entity by ID if the given value is not nil.

func (*StreetUpdate) Where 

func (su *StreetUpdate) Where(ps ...predicate.Street) *StreetUpdate

Where adds a new predicate for the StreetUpdate builder.

type StreetUpdateOne 

type StreetUpdateOne struct {
	// contains filtered or unexported fields
}

StreetUpdateOne is the builder for updating a single Street entity.

func (*StreetUpdateOne) ClearCity 

func (suo *StreetUpdateOne) ClearCity() *StreetUpdateOne

ClearCity clears the "city" edge to the City entity.

func (*StreetUpdateOne) Exec 

func (suo *StreetUpdateOne) Exec(ctx context.Context) error

Exec executes the query on the entity.

func (*StreetUpdateOne) ExecX 

func (suo *StreetUpdateOne) ExecX(ctx context.Context)

ExecX is like Exec, but panics if an error occurs.

func (*StreetUpdateOne) Mutation 

func (suo *StreetUpdateOne) Mutation() *StreetMutation

Mutation returns the StreetMutation object of the builder.

func (*StreetUpdateOne) Save 

func (suo *StreetUpdateOne) Save(ctx context.Context) (*Street, error)

Save executes the query and returns the updated Street entity.

func (*StreetUpdateOne) SaveX 

func (suo *StreetUpdateOne) SaveX(ctx context.Context) *Street

SaveX is like Save, but panics if an error occurs.

func (*StreetUpdateOne) Select added in v0.8.0 

func (suo *StreetUpdateOne) Select(field string, fields ...string) *StreetUpdateOne

Select allows selecting one or more fields (columns) of the returned entity. The default is selecting all fields defined in the entity schema.

func (*StreetUpdateOne) SetCity 

func (suo *StreetUpdateOne) SetCity(c *City) *StreetUpdateOne

SetCity sets the "city" edge to the City entity.

func (*StreetUpdateOne) SetCityID 

func (suo *StreetUpdateOne) SetCityID(id int) *StreetUpdateOne

SetCityID sets the "city" edge to the City entity by ID.

func (*StreetUpdateOne) SetName 

func (suo *StreetUpdateOne) SetName(s string) *StreetUpdateOne

SetName sets the "name" field.

func (*StreetUpdateOne) SetNillableCityID 

func (suo *StreetUpdateOne) SetNillableCityID(id *int) *StreetUpdateOne

SetNillableCityID sets the "city" edge to the City entity by ID if the given value is not nil.

type Streets 

type Streets []*Street

Streets is a parsable slice of Street.

type Tx 

type Tx struct {

	// City is the client for interacting with the City builders.
	City *CityClient
	// Street is the client for interacting with the Street builders.
	Street *StreetClient
	// contains filtered or unexported fields
}

Tx is a transactional client that is created by calling Client.Tx().

func TxFromContext 

func TxFromContext(ctx context.Context) *Tx

TxFromContext returns a Tx stored inside a context, or nil if there isn't one.

func (*Tx) Client 

func (tx *Tx) Client() *Client

Client returns a Client that binds to current transaction.

func (*Tx) Commit 

func (tx *Tx) Commit() error

Commit commits the transaction.

func (*Tx) OnCommit 

func (tx *Tx) OnCommit(f CommitHook)

OnCommit adds a hook to call on commit.

func (*Tx) OnRollback 

func (tx *Tx) OnRollback(f RollbackHook)

OnRollback adds a hook to call on rollback.

func (*Tx) Rollback 

func (tx *Tx) Rollback() error

Rollback rollbacks the transaction.

type ValidationError 

type ValidationError struct {
	Name string // Field or edge name.
	// contains filtered or unexported fields
}

ValidationError returns when validating a field fails.

func (*ValidationError) Error 

func (e *ValidationError) Error() string

Error implements the error interface.

func (*ValidationError) Unwrap 

func (e *ValidationError) Unwrap() error

Unwrap implements the errors.Wrapper interface.

type Value 

type Value = ent.Value

ent aliases to avoid import conflicts in user's code.

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