column

package
v0.2.0 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Aug 7, 2019 License: MIT Imports: 13 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	AllClickAction = iota + 1000
)

Variables

This section is empty.

Functions

func ApplyFormat 

func ApplyFormat(data interface{}, format string, timeFormat string) string

ApplyFormat is used by table columns to apply the given fmt.Sprintf and time.Format strings to the data. It is exported to allow custom cell texters to use it.

func GetNode added in v0.0.7 

func GetNode(c *AliasColumn) query.NodeI

func MakeNodeSlice added in v0.0.7 

func MakeNodeSlice(columns []control.ColumnI) []query.NodeI

MakeNodeSlice is a convenience method to convert a slice of columns into a slice of nodes derived from those columns. The column slice would typically come from the table's SortColumns method, and the returned slice would be passed to the database's OrderBy clause when building a query. Since this is a common use, it will also add sort info to the nodes.

Types

type AliasColumn 

type AliasColumn struct {
	control.ColumnBase
	// contains filtered or unexported fields
}

AliasColumn is a column that uses the AliasGetter interface to get the alias text out of a database object. The data therefore should be a slice of objects that implement the AliasGetter interface. All ORM objects are AliasGetters (or should be). Call NewAliasColumn to create the column.

func NewAliasColumn 

func NewAliasColumn(alias string) *AliasColumn

NewAliasColumn creates a new table column that gets its text from an alias attached to an ORM object. If the alias has a Date type, you MUST call SetTimeFormat to set the format of the printed string.

func (*AliasColumn) Init 

func (c *AliasColumn) Init(alias string)

func (*AliasColumn) SetFormat 

func (c *AliasColumn) SetFormat(format string) *AliasColumn

SetFormat sets an optional format string for the column. The format string will be passed to fmt.Sprintf to further format the printed data.

func (*AliasColumn) SetTimeFormat 

func (c *AliasColumn) SetTimeFormat(format string) *AliasColumn

SetTimeFormat sets the time format of the string, specifically for a DateTime type.

type AliasColumnCreator added in v0.2.0 

type AliasColumnCreator struct {
	// ID will assign the given id to the column. If you do not specify it, an id will be given it by the framework.
	ID string
	// Alias is the name of the alias to use when getting data out of the provided database row
	Alias string
	// Title is the static title string to use in the header row
	Title string
	// Format is a format string applied to the data using fmt.Sprintf
	Format string
	// TimeFormat is a format string applied specifically to time data using time.Format
	TimeFormat string
	// Sortable makes the column display sort arrows in the header
	Sortable bool
	control.ColumnOptions
}

AliasColumnCreator creates a column that displays the content of a database alias. Each row must be an AliasGetter, which by default all the output from database queries provide that.

func (AliasColumnCreator) Create added in v0.2.0 

func (c AliasColumnCreator) Create(ctx context.Context, parent control.TableI) control.ColumnI

type AliasGetter 

type AliasGetter interface {
	GetAlias(key string) query.AliasValue
}

type AliasTexter 

type AliasTexter struct {
	// Alias is the alias name in the database object that we are interested in.
	Alias string
	// Format is a format string. It will be applied using fmt.Sprintf. If you don't provide a Format string, standard
	// string conversion operations will be used.
	Format string
	// TimeFormat is applied to the data using time.Format. You can have both a Format and TimeFormat, and the Format
	// will be applied using fmt.Sprintf after the TimeFormat is applied using time.Format.
	TimeFormat string
}

AliasTexter gets text out of an ORM object with an alias. If the alias does not exist, it will panic.

func (AliasTexter) CellText 

func (t AliasTexter) CellText(ctx context.Context, col control.ColumnI, rowNum int, colNum int, data interface{}) string

type CellTexter 

type CellTexter interface {
	control.CellTexter
}

func GetCellTexter added in v0.2.0 

func GetCellTexter(ctrl page.ControlI, id string) CellTexter

type CheckboxColumn 

type CheckboxColumn struct {
	control.ColumnBase
	// contains filtered or unexported fields
}

CheckboxColumn is a table column that contains a checkbox in each row. You must provide it a CheckboxProvider to connect ids and default data to the checkbox. Use Changes() to get the list of checkbox ids that have changed since the list was initially drawn.

func NewCheckboxColumn 

func NewCheckboxColumn(p CheckboxProvider) *CheckboxColumn

NewChecboxColumn creates a new table column that contains a checkbox. You must provide a CheckboxProvider which will connect checkbox states to data states

The table will keep track of what checkboxes have been clicked and the new values. Call Changes() to get those changes. Or, if you are recording your changes in real time, attach a CheckboxColumnClick event to the table.

func (*CheckboxColumn) Action 

func (col *CheckboxColumn) Action(ctx context.Context, params page.ActionParams)

Action is called by the framework to respond to an event. Here it responds to a click in the CheckAll box.

func (*CheckboxColumn) AddActions 

func (col *CheckboxColumn) AddActions(t page.ControlI)

AddActions adds actions to the table that the column can respond to.

func (*CheckboxColumn) CellText 

func (col *CheckboxColumn) CellText(ctx context.Context, rowNum int, colNum int, data interface{}) string

CellText is called by the Table drawing mechanism to draw the content of a cell, which in this case will be a checkbox.

func (*CheckboxColumn) Changes 

func (col *CheckboxColumn) Changes() map[string]bool

Changes returns a map of ids corresponding to checkboxes that have changed. Both true and false values indicate the current state of that particular checkbox. Note that if a user checks a box, then checks it again, even though it is back to its original value, it will still show up in the changes list.

func (*CheckboxColumn) CheckboxAttributes 

func (col *CheckboxColumn) CheckboxAttributes(data interface{}) html.Attributes

CheckboxAttributes returns the attributes for the input tag that will display the checkbox. If data is nil, it indicates a checkAll box.

func (*CheckboxColumn) HeaderCellHtml 

func (col *CheckboxColumn) HeaderCellHtml(ctx context.Context, rowNum int, colNum int) (h string)

HeaderCellHtml is called by the Table drawing system to draw the HeaderCellHtml.

func (*CheckboxColumn) Init 

func (col *CheckboxColumn) Init()

func (*CheckboxColumn) MarshalState added in v0.0.4 

func (t *CheckboxColumn) MarshalState(m maps.Setter)

MarshalState is an internal function to save the state of the control

func (*CheckboxColumn) PreRender added in v0.0.4 

func (col *CheckboxColumn) PreRender()

PreRender is called by the Table to tell the column that it is about to draw. Here we are resetting the list of currently showing checkboxes so that we can keep track of what is displayed. This is required to keep track of which boxes are checked in the event that Javascript is off.

func (*CheckboxColumn) ResetChanges added in v0.0.4 

func (col *CheckboxColumn) ResetChanges()

ResetChanges resets the column so it is ready to accept new data. You might need to call this if you have previously called SaveState. Or, change DataID in the CheckboxProvider to cause the changes to reset.

func (*CheckboxColumn) SetShowCheckAll 

func (col *CheckboxColumn) SetShowCheckAll(s bool) *CheckboxColumn

SetShowCheckAll will cause the CheckAll checkbox to appear in the header. You must show at least one header row to see the checkboxes too.

func (*CheckboxColumn) UnmarshalState added in v0.0.4 

func (t *CheckboxColumn) UnmarshalState(m maps.Loader)

UnmarshalState is an internal function to restore the state of the control

func (*CheckboxColumn) UpdateFormValues 

func (col *CheckboxColumn) UpdateFormValues(ctx *page.Context)

UpdateFormValues will look for changes to our checkboxes and record those changes.

type CheckboxColumnCreator added in v0.2.0 

type CheckboxColumnCreator struct {
	// ID will assign the given id to the column. If you do not specify it, an id will be given it by the framework.
	ID string
	// ShowCheckAll will show a checkbox in the header that the user can use to check all the boxes in the column.
	ShowCheckAll bool
	// CheckboxProvider tells us which checkboxes are on or off, and how the checkboxes are styled.
	CheckboxProvider CheckboxProvider
	// Title is the title of the column that appears in the header
	Title string
	// Sortable makes the column display sort arrows in the header
	Sortable bool
	control.ColumnOptions
}

CheckboxColumnCreator creates a column of checkboxes.

func (CheckboxColumnCreator) Create added in v0.2.0 

func (c CheckboxColumnCreator) Create(ctx context.Context, parent control.TableI) control.ColumnI

type CheckboxColumnI 

type CheckboxColumnI interface {
	control.ColumnI
	CheckboxAttributes(data interface{}) html.Attributes
}

type CheckboxProvider 

type CheckboxProvider interface {
	// RowID should return a unique id corresponding to the given data item. It is used to track the checked state of an individual checkbox.
	RowID(data interface{}) string
	// IsChecked should return true if the checkbox corresponding to the row data should initially be checked. After the
	// initial draw, the table will keep track of the state of the checkbox, meaning you do not need to live update your data.
	// If you are using the table just as a selection of items to act on, just return false here.
	IsChecked(data interface{}) bool
	// Attributes returns the attributes that will be applied to the checkbox corresponding to the data row.
	// Use this primarily for providing custom attributes. Return nil if you have no custom attributes.
	Attributes(data interface{}) html.Attributes
	// If you enable the checkAll box, you can use this to return a map of all the ids and their initial values here. This is
	// mostly helpful if your table is not showing all the rows at once (i.e. you are using a paginator or scroller and
	// only showing a subset of data at one time). If your table is showing a checkAll box, and you return nil here, the
	// checkAll will only perform a javascript checkAll, and thus only check the visible items.
	All() map[string]bool
	// DataID should return an id that identifies the overall data. This could be a database record id.
	// It is used to determine if the checkboxes in the column should be reset if SaveState is on.
	// If the DataID changes, and SaveState is on, it will reset the changes.
	DataID() string
}

The CheckboxProvider interface defines a set of functions that you implement to provide for the initial display of a checkbox. You can descend your own CheckboxProvider from the DefaultCheckboxProvider to get the default behavior, and then add whatever functions you need to implement. Be sure to register your custom provider with gob.

type DefaultCheckboxProvider added in v0.0.4 

type DefaultCheckboxProvider struct{}

The DefaultCheckboxProvider is a mixin you can use to base your CheckboxProvider, and that will provide default functionality for the methods you don't want to implement.

func (DefaultCheckboxProvider) All added in v0.0.4 

func (c DefaultCheckboxProvider) All() map[string]bool

func (DefaultCheckboxProvider) Attributes added in v0.0.4 

func (c DefaultCheckboxProvider) Attributes(data interface{}) html.Attributes

func (DefaultCheckboxProvider) DataID added in v0.0.4 

func (c DefaultCheckboxProvider) DataID() string

func (DefaultCheckboxProvider) IsChecked added in v0.0.4 

func (c DefaultCheckboxProvider) IsChecked(data interface{}) bool

func (DefaultCheckboxProvider) RowID added in v0.0.4 

func (c DefaultCheckboxProvider) RowID(data interface{}) string

type Getter 

type Getter interface {
	Get(string) interface{}
}

type GetterColumn 

type GetterColumn struct {
	control.ColumnBase
}

GetterColumn is a column that uses the Getter interface to get the text out of columns. The data therefore should be a slice of objects that implement the Getter interface.

func NewGetterColumn 

func NewGetterColumn(index string) *GetterColumn

NewGetterColumn creates a new column that will call Get on the column to figure out what data to display. If the data is a Date, Time or DateTime type, you MUST also call SetTimeFormat. You can also optionally call SetFormat to pass it a fmt.Sprintf string to further format the data before printing.

func (*GetterColumn) Init 

func (c *GetterColumn) Init(index string)

func (*GetterColumn) SetFormat 

func (c *GetterColumn) SetFormat(format string) *GetterColumn

SetFormat sets an optional format string for the column, which will be passed to fmt.Sprintf to format the data.

func (*GetterColumn) SetTimeFormat 

func (c *GetterColumn) SetTimeFormat(format string) *GetterColumn

SetTimeFormat sets the format for Date, Time or DateTime type data. The format will be passed to time.Format to produce the text to print for the column.

type GetterColumnCreator added in v0.2.0 

type GetterColumnCreator struct {
	// ID will assign the given id to the column. If you do not specify it, an id will be given it by the framework.
	ID string
	// Index is the value passed to the Get function of each row of the data to get the data for the cell.
	Index string
	// Title is the title that appears in the header of the column
	Title string
	// Format is a format string applied to the data using fmt.Sprintf
	Format string
	// TimeFormat is a format string applied specifically to time data using time.Format
	TimeFormat string
	// Sortable makes the column display sort arrows in the header
	Sortable bool
	control.ColumnOptions
}

GetterColumnCreator creates a column that uses a Getter to get the text of each cell.

func (GetterColumnCreator) Create added in v0.2.0 

func (c GetterColumnCreator) Create(ctx context.Context, parent control.TableI) control.ColumnI

type GetterTexter 

type GetterTexter struct {
	// Key is the key to use when calling the Get function on the object.
	Key string
	// Format is a format string. It will be applied using fmt.Sprintf. If you don't provide a Format string, standard
	// string conversion operations will be used.
	Format string
	// TimeFormat is applied to the data using time.Format. You can have both a Format and TimeFormat, and the Format
	// will be applied using fmt.Sprintf after the TimeFormat is applied using time.Format.
	TimeFormat string
}

GetterTexter lets you get items out of map like objects using the Getter interface.

func (GetterTexter) CellText 

func (t GetterTexter) CellText(ctx context.Context, col control.ColumnI, rowNum int, colNum int, data interface{}) string

type MapColumn 

type MapColumn struct {
	control.ColumnBase
}

MapColumn is a table that works with data that is in the form of a map. The data item itself must be convertible into a string, either by normal string conversion semantics, or using the supplied format string.

func NewMapColumn 

func NewMapColumn(index interface{}) *MapColumn

NewMapColumn creates a new column that will treat the data as a map. It will get the data from given index in the map and then attempt to convert it into a string. Call SetFormat to explicitly tell the column how to convert the data into a string using the fmt.Sprintf function. If the data is a Date, Time or DateTime type, you MUST call SetTimeFormat to describe the date or time format.

func (*MapColumn) Init 

func (c *MapColumn) Init(index interface{})

func (*MapColumn) SetFormat 

func (c *MapColumn) SetFormat(format string) *MapColumn

SetFormat sets an optional format string for the column, which will be passed to fmt.Sprintf to format the data.

func (*MapColumn) SetTimeFormat 

func (c *MapColumn) SetTimeFormat(format string) *MapColumn

SetTimeFormat sets the format for Date, Time or DateTime type data. The format will be passed to time.Format to produce the text to print for the column.

type MapColumnCreator added in v0.2.0 

type MapColumnCreator struct {
	// ID will assign the given id to the column. If you do not specify it, an id will be given it by the framework.
	ID string
	// Index is the key to use to get to the map data
	Index interface{}
	// Title is the title of the column that appears in the header
	Title string
	// Format is a format string applied to the data using fmt.Sprintf
	Format string
	// TimeFormat is a format string applied specifically to time data using time.Format
	TimeFormat string
	// Sortable makes the column display sort arrows in the header
	Sortable bool
	control.ColumnOptions
}

MapColumnCreator creates a column that treats each row of data as a map of data. The index can be any valid map index, and the value must be a standard kind of value that can be converted to a string.

func (MapColumnCreator) Create added in v0.2.0 

func (c MapColumnCreator) Create(ctx context.Context, parent control.TableI) control.ColumnI

type MapTexter 

type MapTexter struct {
	// Index is the index into the data that corresponds to this table
	Index interface{}
	// Format is a format string. It will be applied using fmt.Sprintf. If you don't provide a Format string, standard
	// string conversion operations will be used.
	Format string
	// TimeFormat is applied to the data using time.Format. You can have both a Format and TimeFormat, and the Format
	// will be applied using fmt.Sprintf after the TimeFormat is applied using time.Format.
	TimeFormat string
}

MapTexter is the default CellTexter for tables. It lets you get items out of maps.

func (MapTexter) CellText 

func (t MapTexter) CellText(ctx context.Context, col control.ColumnI, rowNum int, colNum int, data interface{}) string

type NodeColumn 

type NodeColumn struct {
	control.ColumnBase
}

NodeColumn is a column that uses a query.NodeI to get its text out of data that is coming from the ORM. Create it with NewNodeColumn

func NewNodeColumn 

func NewNodeColumn(node query.NodeI) *NodeColumn

NewNodeColumn creates a table column that uses a query.NodeI object to get its text out of an ORM object. node should point to data that is preloaded in the ORM object. If the node points to a Date, Time or DateTime type of column, you MUST specify a time format by calling SetTimeFormat.

func (*NodeColumn) GetNode added in v0.0.7 

func (c *NodeColumn) GetNode() query.NodeI

func (*NodeColumn) Init 

func (c *NodeColumn) Init(node query.NodeI)

func (*NodeColumn) SetFormat 

func (c *NodeColumn) SetFormat(format string) *NodeColumn

SetFormat sets the format string of the node column.

func (*NodeColumn) SetTimeFormat 

func (c *NodeColumn) SetTimeFormat(format string) *NodeColumn

SetTimeFormat sets the time format of the string, specifically for a DateTime column.

type NodeColumnCreator added in v0.2.0 

type NodeColumnCreator struct {
	// ID will assign the given id to the column. If you do not specify it, an id will be given it by the framework.
	ID string
	// Node is a database node generated by the code generator
	Node query.NodeI
	// Title is the title of the column that will appear in the header
	Title string
	// Format is a format string applied to the data using fmt.Sprintf
	Format string
	// TimeFormat is a format string applied specifically to time data using time.Format
	TimeFormat string
	// Sortable makes the column display sort arrows in the header
	Sortable bool
	control.ColumnOptions
}

NodeColumnCreator creates a column that treats each row as data from the ORM, and gets to that data using a database Node.

func (NodeColumnCreator) Create added in v0.2.0 

func (c NodeColumnCreator) Create(ctx context.Context, parent control.TableI) control.ColumnI

type NodeGetter added in v0.0.7 

type NodeGetter interface {
	GetNode() query.NodeI
}

type NodeTexter 

type NodeTexter struct {
	// Key is the key to use when calling the Get function on the object.
	Node query.NodeI
	// Format is a format string. It will be applied using fmt.Sprintf. If you don't provide a Format string, standard
	// string conversion operations will be used.
	Format string
	// TimeFormat is applied to the data using time.Format. You can have both a Format and TimeFormat, and the Format
	// will be applied using fmt.Sprintf after the TimeFormat is applied using time.Format.
	TimeFormat string
}

NodeTexter is used by the NodeColumn to get text out of a database column.

func (NodeTexter) CellText 

func (t NodeTexter) CellText(ctx context.Context, col control.ColumnI, rowNum int, colNum int, data interface{}) string

type SliceColumn 

type SliceColumn struct {
	control.ColumnBase
}

SliceColumn is a table that works with data that is in the form of a slice. The data item itself must be convertible into a string, either by normal string conversion semantics, or using the supplied format string.

func NewSliceColumn 

func NewSliceColumn(index int) *SliceColumn

NewSliceColumn creates a new column that treats the supplied row data as a slice. It will use the given numeric index to get the data. It will then attempt to convert the data into a string, or you can explicitly tell it how to do this by calling SetFormat. If the data is a Date, Time or DateTime type, you MUST call SetTimeFormat to describe how to format the date or time.

func (*SliceColumn) Init 

func (c *SliceColumn) Init(index int)

func (*SliceColumn) SetFormat 

func (c *SliceColumn) SetFormat(format string) *SliceColumn

SetFormat sets an optional format string for the column, which will be passed to fmt.Sprintf to format the data.

func (*SliceColumn) SetTimeFormat 

func (c *SliceColumn) SetTimeFormat(format string) *SliceColumn

SetTimeFormat sets the format for Date, Time or DateTime type data. The format will be passed to time.Format to produce the text to print for the column.

type SliceColumnCreator added in v0.2.0 

type SliceColumnCreator struct {
	// ID will assign the given id to the column. If you do not specify it, an id will be given it by the framework.
	ID string
	// Index is the slice index that will be used to get to the data in the column
	Index int
	// Title is the title of the column and will appear in the header
	Title string
	// Format is a format string applied to the data using fmt.Sprintf
	Format string
	// TimeFormat is a format string applied specifically to time data using time.Format
	TimeFormat string
	// Sortable makes the column display sort arrows in the header
	Sortable bool
	control.ColumnOptions
}

SliceColumnCreator creates a column that treats each row as a slice of data.

func (SliceColumnCreator) Create added in v0.2.0 

func (c SliceColumnCreator) Create(ctx context.Context, parent control.TableI) control.ColumnI

type SliceTexter 

type SliceTexter struct {
	// Index is the index into the data that corresponds to this table
	Index int
	// Format is a format string. It will be applied using fmt.Sprintf. If you don't provide a Format string, standard
	// string conversion operations will be used.
	Format string
	// TimeFormat is applied to the data using time.Format. You can have both a Format and TimeFormat, and the Format
	// will be applied using fmt.Sprintf after the TimeFormat is applied using time.Format.
	TimeFormat string
}

SliceTexter is the default CellTexter for tables. It lets you get items out of slices.

func (SliceTexter) CellText 

func (t SliceTexter) CellText(ctx context.Context, col control.ColumnI, rowNum int, colNum int, data interface{}) string

type StringGetter 

type StringGetter interface {
	Get(string) string
}

type TexterColumn added in v0.2.0 

type TexterColumn struct {
	control.ColumnBase
}

TexterColumn is a table column that lets you use a CellTexter to specify the content of the cells in the column. One convenient way to use this is to define a CellText function on the parent object and pass it as the CellTexter. If your CellTexter is going to output html instead of raw text, call SetIsHtml() on the column after creating it.

func NewTexterColumn added in v0.2.0 

func NewTexterColumn(texter CellTexter) *TexterColumn

NewTexterColumn creates a new column with a custom cell texter.

func (*TexterColumn) Init added in v0.2.0 

func (c *TexterColumn) Init(texter CellTexter)

type TexterColumnCreator added in v0.2.0 

type TexterColumnCreator struct {
	// ID will assign the given id to the column. If you do not specify it, an id will be given it by the framework.
	ID string
	// Texter returns the text that should go in each cell. Pass a string control id, or a CellTexter.
	Texter interface{}
	// Title is the title at the top of the column
	Title string
	// Sortable makes the column display sort arrows in the header
	Sortable bool
	control.ColumnOptions
}

TexterColumnCreator creates a column that uses a CellTexter to get the content of each cell.

func (TexterColumnCreator) Create added in v0.2.0 

func (c TexterColumnCreator) Create(ctx context.Context, parent control.TableI) control.ColumnI

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.