Documentation
¶
Overview ¶
Package sq provides a fluent SQL generator.
See https://github.com/userhubdev/sq for examples.
Index ¶
- Variables
- func Debug(s Sqlizer) string
- func Placeholders(count int) string
- type And
- type Builder
- type CaseBuilder
- type DeleteBuilder
- func (b DeleteBuilder) From(from string) DeleteBuilder
- func (b DeleteBuilder) Limit(limit uint64) DeleteBuilder
- func (b DeleteBuilder) Offset(offset uint64) DeleteBuilder
- func (b DeleteBuilder) OrderBy(orderBys ...string) DeleteBuilder
- func (b DeleteBuilder) PlaceholderFormat(f PlaceholderFormat) DeleteBuilder
- func (b DeleteBuilder) Prefix(sql string, args ...any) DeleteBuilder
- func (b DeleteBuilder) PrefixExpr(expr Sqlizer) DeleteBuilder
- func (b DeleteBuilder) Suffix(sql string, args ...any) DeleteBuilder
- func (b DeleteBuilder) SuffixExpr(expr Sqlizer) DeleteBuilder
- func (b DeleteBuilder) ToSql() (string, []any, error)
- func (b DeleteBuilder) Where(pred any, args ...any) DeleteBuilder
- type Eq
- type Gt
- type GtOrEq
- type ILike
- type InsertBuilder
- func (b InsertBuilder) Columns(columns ...string) InsertBuilder
- func (b InsertBuilder) Into(into string) InsertBuilder
- func (b InsertBuilder) Options(options ...string) InsertBuilder
- func (b InsertBuilder) PlaceholderFormat(f PlaceholderFormat) InsertBuilder
- func (b InsertBuilder) Prefix(sql string, args ...any) InsertBuilder
- func (b InsertBuilder) PrefixExpr(expr Sqlizer) InsertBuilder
- func (b InsertBuilder) Select(sb SelectBuilder) InsertBuilder
- func (b InsertBuilder) SetMap(clauses map[string]any) InsertBuilder
- func (b InsertBuilder) Suffix(sql string, args ...any) InsertBuilder
- func (b InsertBuilder) SuffixExpr(expr Sqlizer) InsertBuilder
- func (b InsertBuilder) ToSql() (string, []any, error)
- func (b InsertBuilder) Values(values ...any) InsertBuilder
- type Like
- type Lt
- type LtOrEq
- type NotEq
- type NotILike
- type NotLike
- type Or
- type PlaceholderFormat
- type Raw
- type RawSqlizer
- type SelectBuilder
- func (b SelectBuilder) Column(column any, args ...any) SelectBuilder
- func (b SelectBuilder) Columns(columns ...string) SelectBuilder
- func (b SelectBuilder) CrossJoin(join string, rest ...any) SelectBuilder
- func (b SelectBuilder) CrossJoinOn(join any, on Sqlizer) SelectBuilder
- func (b SelectBuilder) CrossJoinSelect(join SelectBuilder, alias string, on Sqlizer) SelectBuilder
- func (b SelectBuilder) Distinct() SelectBuilder
- func (b SelectBuilder) From(from string) SelectBuilder
- func (b SelectBuilder) FromSelect(from Sqlizer, alias string) SelectBuilder
- func (b SelectBuilder) FullJoin(join string, rest ...any) SelectBuilder
- func (b SelectBuilder) FullJoinOn(join any, on Sqlizer) SelectBuilder
- func (b SelectBuilder) FullJoinSelect(join SelectBuilder, alias string, on Sqlizer) SelectBuilder
- func (b SelectBuilder) GroupBy(groupBys ...string) SelectBuilder
- func (b SelectBuilder) Having(pred any, rest ...any) SelectBuilder
- func (b SelectBuilder) InnerJoin(join string, rest ...any) SelectBuilder
- func (b SelectBuilder) InnerJoinOn(join any, on Sqlizer) SelectBuilder
- func (b SelectBuilder) InnerJoinSelect(join SelectBuilder, alias string, on Sqlizer) SelectBuilder
- func (b SelectBuilder) Join(join string, rest ...any) SelectBuilder
- func (b SelectBuilder) JoinClause(pred any, args ...any) SelectBuilder
- func (b SelectBuilder) JoinOn(join any, on Sqlizer) SelectBuilder
- func (b SelectBuilder) JoinSelect(join SelectBuilder, alias string, on Sqlizer) SelectBuilder
- func (b SelectBuilder) LeftJoin(join string, rest ...any) SelectBuilder
- func (b SelectBuilder) LeftJoinOn(join any, on Sqlizer) SelectBuilder
- func (b SelectBuilder) LeftJoinSelect(join SelectBuilder, alias string, on Sqlizer) SelectBuilder
- func (b SelectBuilder) Limit(limit uint64) SelectBuilder
- func (b SelectBuilder) Offset(offset uint64) SelectBuilder
- func (b SelectBuilder) Options(options ...string) SelectBuilder
- func (b SelectBuilder) OrderBy(orderBys ...string) SelectBuilder
- func (b SelectBuilder) OrderByClause(pred any, args ...any) SelectBuilder
- func (b SelectBuilder) PlaceholderFormat(f PlaceholderFormat) SelectBuilder
- func (b SelectBuilder) Prefix(sql string, args ...any) SelectBuilder
- func (b SelectBuilder) PrefixExpr(expr Sqlizer) SelectBuilder
- func (b SelectBuilder) RemoveColumns() SelectBuilder
- func (b SelectBuilder) RemoveGroupBy() SelectBuilder
- func (b SelectBuilder) RemoveHaving() SelectBuilder
- func (b SelectBuilder) RemoveJoins() SelectBuilder
- func (b SelectBuilder) RemoveLimit() SelectBuilder
- func (b SelectBuilder) RemoveOffset() SelectBuilder
- func (b SelectBuilder) RemoveOrderBy() SelectBuilder
- func (b SelectBuilder) RemovePrefixes() SelectBuilder
- func (b SelectBuilder) RemoveSuffixes() SelectBuilder
- func (b SelectBuilder) RemoveWhere() SelectBuilder
- func (b SelectBuilder) RightJoin(join string, rest ...any) SelectBuilder
- func (b SelectBuilder) RightJoinOn(join any, on Sqlizer) SelectBuilder
- func (b SelectBuilder) RightJoinSelect(join SelectBuilder, alias string, on Sqlizer) SelectBuilder
- func (b SelectBuilder) Suffix(sql string, args ...any) SelectBuilder
- func (b SelectBuilder) SuffixExpr(expr Sqlizer) SelectBuilder
- func (b SelectBuilder) ToSql() (string, []any, error)
- func (b SelectBuilder) ToSqlRaw() (string, []any, error)
- func (b SelectBuilder) Where(pred any, args ...any) SelectBuilder
- type Sqlizer
- func Alias(expr Sqlizer, alias string) Sqlizer
- func ConcatExpr(parts ...any) Sqlizer
- func ExceptAll(parts ...Sqlizer) Sqlizer
- func ExceptDistinct(parts ...Sqlizer) Sqlizer
- func Expr(sql string, args ...any) Sqlizer
- func IntersectAll(parts ...Sqlizer) Sqlizer
- func IntersectDistinct(parts ...Sqlizer) Sqlizer
- func UnionAll(parts ...Sqlizer) Sqlizer
- func UnionDistinct(parts ...Sqlizer) Sqlizer
- type StatementBuilderType
- func (b StatementBuilderType) Delete(from string) DeleteBuilder
- func (b StatementBuilderType) Insert(into string) InsertBuilder
- func (b StatementBuilderType) PlaceholderFormat(f PlaceholderFormat) StatementBuilderType
- func (b StatementBuilderType) Replace(into string) InsertBuilder
- func (b StatementBuilderType) Select(columns ...string) SelectBuilder
- func (b StatementBuilderType) Update(table string) UpdateBuilder
- func (b StatementBuilderType) Where(pred any, args ...any) StatementBuilderType
- func (b StatementBuilderType) With() WithBuilder
- type UpdateBuilder
- func (b UpdateBuilder) From(from string) UpdateBuilder
- func (b UpdateBuilder) FromSelect(from SelectBuilder, alias string) UpdateBuilder
- func (b UpdateBuilder) Limit(limit uint64) UpdateBuilder
- func (b UpdateBuilder) Offset(offset uint64) UpdateBuilder
- func (b UpdateBuilder) OrderBy(orderBys ...string) UpdateBuilder
- func (b UpdateBuilder) PlaceholderFormat(f PlaceholderFormat) UpdateBuilder
- func (b UpdateBuilder) Prefix(sql string, args ...any) UpdateBuilder
- func (b UpdateBuilder) PrefixExpr(expr Sqlizer) UpdateBuilder
- func (b UpdateBuilder) Set(column string, value any) UpdateBuilder
- func (b UpdateBuilder) SetMap(clauses map[string]any) UpdateBuilder
- func (b UpdateBuilder) Suffix(sql string, args ...any) UpdateBuilder
- func (b UpdateBuilder) SuffixExpr(expr Sqlizer) UpdateBuilder
- func (b UpdateBuilder) Table(table string) UpdateBuilder
- func (b UpdateBuilder) ToSql() (string, []any, error)
- func (b UpdateBuilder) Where(pred any, args ...any) UpdateBuilder
- type WithBuilder
- func (b WithBuilder) As(alias string, sql Sqlizer) WithBuilder
- func (b WithBuilder) Delete(from string) DeleteBuilder
- func (b WithBuilder) Insert(into string) InsertBuilder
- func (b WithBuilder) PlaceholderFormat(f PlaceholderFormat) WithBuilder
- func (b WithBuilder) Select(columns ...string) SelectBuilder
- func (b WithBuilder) ToSql() (string, []any, error)
- func (b WithBuilder) Update(table string) UpdateBuilder
Examples ¶
Constants ¶
This section is empty.
Variables ¶
var ( // Question is a PlaceholderFormat instance that leaves placeholders as // question marks. Question = questionFormat{} // Dollar is a PlaceholderFormat instance that replaces placeholders with // dollar-prefixed positional placeholders (e.g. $1, $2, $3). Dollar = dollarFormat{} // Colon is a PlaceholderFormat instance that replaces placeholders with // colon-prefixed positional placeholders (e.g. :1, :2, :3). Colon = colonFormat{} // AtP is a PlaceholderFormat instance that replaces placeholders with // "@p"-prefixed positional placeholders (e.g. @p1, @p2, @p3). AtP = atpFormat{} )
var StatementBuilder = StatementBuilderType(builder.EmptyBuilder).PlaceholderFormat(Question)
StatementBuilder is a parent builder for other builders, e.g. SelectBuilder.
Functions ¶
func Debug ¶ added in v0.3.0
Debug calls ToSql on s and shows the approximate SQL to be executed
If ToSql returns an error, the result of this method will look like: "[ToSql error: %s]" or "[Debug error: %s]"
IMPORTANT: As its name suggests, this function should only be used for debugging. While the string result *might* be valid SQL, this function does not try very hard to ensure it. Additionally, executing the output of this function with any untrusted user input is certainly insecure.
func Placeholders ¶
Placeholders returns a string with count ? placeholders joined with commas.
Types ¶
type Builder ¶ added in v0.3.0
Builder is a helper that allows to write many Sqlizers one by one without constant checks for errors that may come from Sqlizer
type CaseBuilder ¶
CaseBuilder builds SQL CASE construct which could be used as parts of queries.
func Case ¶
func Case(what ...any) CaseBuilder
Case returns a new CaseBuilder "what" represents case value
func (CaseBuilder) Else ¶
func (b CaseBuilder) Else(expr any) CaseBuilder
What sets optional "ELSE ..." part for CASE construct
func (CaseBuilder) ToSql ¶
func (b CaseBuilder) ToSql() (string, []any, error)
ToSql builds the query into a SQL string and bound args.
func (CaseBuilder) When ¶
func (b CaseBuilder) When(when any, then any) CaseBuilder
When adds "WHEN ... THEN ..." part to CASE construct
type DeleteBuilder ¶
DeleteBuilder builds SQL DELETE statements.
func Delete ¶
func Delete(from string) DeleteBuilder
Delete returns a new DeleteBuilder with the given table name.
See DeleteBuilder.Table.
func (DeleteBuilder) From ¶
func (b DeleteBuilder) From(from string) DeleteBuilder
From sets the table to be deleted from.
func (DeleteBuilder) Limit ¶
func (b DeleteBuilder) Limit(limit uint64) DeleteBuilder
Limit sets a LIMIT clause on the query.
func (DeleteBuilder) Offset ¶
func (b DeleteBuilder) Offset(offset uint64) DeleteBuilder
Offset sets a OFFSET clause on the query.
func (DeleteBuilder) OrderBy ¶
func (b DeleteBuilder) OrderBy(orderBys ...string) DeleteBuilder
OrderBy adds ORDER BY expressions to the query.
func (DeleteBuilder) PlaceholderFormat ¶
func (b DeleteBuilder) PlaceholderFormat(f PlaceholderFormat) DeleteBuilder
PlaceholderFormat sets PlaceholderFormat (e.g. Question or Dollar) for the query.
func (DeleteBuilder) Prefix ¶
func (b DeleteBuilder) Prefix(sql string, args ...any) DeleteBuilder
Prefix adds an expression to the beginning of the query
func (DeleteBuilder) PrefixExpr ¶
func (b DeleteBuilder) PrefixExpr(expr Sqlizer) DeleteBuilder
PrefixExpr adds an expression to the very beginning of the query
func (DeleteBuilder) Suffix ¶
func (b DeleteBuilder) Suffix(sql string, args ...any) DeleteBuilder
Suffix adds an expression to the end of the query
func (DeleteBuilder) SuffixExpr ¶
func (b DeleteBuilder) SuffixExpr(expr Sqlizer) DeleteBuilder
SuffixExpr adds an expression to the end of the query
func (DeleteBuilder) ToSql ¶
func (b DeleteBuilder) ToSql() (string, []any, error)
ToSql builds the query into a SQL string and bound args.
func (DeleteBuilder) Where ¶
func (b DeleteBuilder) Where(pred any, args ...any) DeleteBuilder
Where adds WHERE expressions to the query.
See SelectBuilder.Where for more information.
type Eq ¶
Eq is syntactic sugar for use with Where/Having/Set methods.
Example ¶
Select("id", "created", "first_name").From("users").Where(Eq{ "company": 20, })
type Gt ¶
type Gt Lt
Gt is syntactic sugar for use with Where/Having/Set methods. Ex:
.Where(Gt{"id": 1}) == "id > 1"
type GtOrEq ¶
type GtOrEq Lt
GtOrEq is syntactic sugar for use with Where/Having/Set methods. Ex:
.Where(GtOrEq{"id": 1}) == "id >= 1"
type ILike ¶
type ILike Like
ILike is syntactic sugar for use with ILIKE conditions. Ex:
.Where(ILike{"name": "sq%"})
type InsertBuilder ¶
InsertBuilder builds SQL INSERT statements.
func Insert ¶
func Insert(into string) InsertBuilder
Insert returns a new InsertBuilder with the given table name.
See InsertBuilder.Into.
func Replace ¶
func Replace(into string) InsertBuilder
Replace returns a new InsertBuilder with the statement keyword set to "REPLACE" and with the given table name.
See InsertBuilder.Into.
func (InsertBuilder) Columns ¶
func (b InsertBuilder) Columns(columns ...string) InsertBuilder
Columns adds insert columns to the query.
func (InsertBuilder) Into ¶
func (b InsertBuilder) Into(into string) InsertBuilder
Into sets the INTO clause of the query.
func (InsertBuilder) Options ¶
func (b InsertBuilder) Options(options ...string) InsertBuilder
Options adds keyword options before the INTO clause of the query.
func (InsertBuilder) PlaceholderFormat ¶
func (b InsertBuilder) PlaceholderFormat(f PlaceholderFormat) InsertBuilder
PlaceholderFormat sets PlaceholderFormat (e.g. Question or Dollar) for the query.
func (InsertBuilder) Prefix ¶
func (b InsertBuilder) Prefix(sql string, args ...any) InsertBuilder
Prefix adds an expression to the beginning of the query
func (InsertBuilder) PrefixExpr ¶
func (b InsertBuilder) PrefixExpr(expr Sqlizer) InsertBuilder
PrefixExpr adds an expression to the very beginning of the query
func (InsertBuilder) Select ¶
func (b InsertBuilder) Select(sb SelectBuilder) InsertBuilder
Select set Select clause for insert query If Values and Select are used, then Select has higher priority
func (InsertBuilder) SetMap ¶
func (b InsertBuilder) SetMap(clauses map[string]any) InsertBuilder
SetMap set columns and values for insert builder from a map of column name and value note that it will reset all previous columns and values was set if any
func (InsertBuilder) Suffix ¶
func (b InsertBuilder) Suffix(sql string, args ...any) InsertBuilder
Suffix adds an expression to the end of the query
func (InsertBuilder) SuffixExpr ¶
func (b InsertBuilder) SuffixExpr(expr Sqlizer) InsertBuilder
SuffixExpr adds an expression to the end of the query
func (InsertBuilder) ToSql ¶
func (b InsertBuilder) ToSql() (string, []any, error)
ToSql builds the query into a SQL string and bound args.
func (InsertBuilder) Values ¶
func (b InsertBuilder) Values(values ...any) InsertBuilder
Values adds a single row's values to the query.
type Like ¶
Like is syntactic sugar for use with LIKE conditions. Ex:
.Where(Like{"name": "%irrel"})
type LtOrEq ¶
type LtOrEq Lt
LtOrEq is syntactic sugar for use with Where/Having/Set methods. Ex:
.Where(LtOrEq{"id": 1}) == "id <= 1"
type NotEq ¶
type NotEq Eq
NotEq is syntactic sugar for use with Where/Having/Set methods. Ex:
.Where(NotEq{"id": 1}) == "id <> 1"
type NotILike ¶
type NotILike Like
NotILike is syntactic sugar for use with ILIKE conditions. Ex:
.Where(NotILike{"name": "sq%"})
type NotLike ¶
type NotLike Like
NotLike is syntactic sugar for use with LIKE conditions. Ex:
.Where(NotLike{"name": "%irrel"})
type PlaceholderFormat ¶
PlaceholderFormat is the interface that wraps the ReplacePlaceholders method.
ReplacePlaceholders takes a SQL statement and replaces each question mark placeholder with a (possibly different) SQL placeholder.
type RawSqlizer ¶
RawSqlizer is expected to do what Sqlizer does, but without finalizing placeholders. This is useful for nested queries.
type SelectBuilder ¶
SelectBuilder builds SQL SELECT statements.
func Select ¶
func Select(columns ...string) SelectBuilder
Select returns a new SelectBuilder, optionally setting some result columns.
See SelectBuilder.Columns.
Example ¶
Select("id", "created", "first_name").From("users") // ... continue building up your query // sql methods in select columns are ok Select("first_name", "count(*)").From("users") // column aliases are ok too Select("first_name", "count(*) as n_users").From("users")
func (SelectBuilder) Column ¶
func (b SelectBuilder) Column(column any, args ...any) SelectBuilder
Column adds a result column to the query. Unlike Columns, Column accepts args which will be bound to placeholders in the columns string, for example:
Column("IF(col IN ("+sq.Placeholders(3)+"), 1, 0) as col", 1, 2, 3)
func (SelectBuilder) Columns ¶
func (b SelectBuilder) Columns(columns ...string) SelectBuilder
Columns adds result columns to the query.
Example ¶
query := Select("id").Columns("created", "first_name").From("users") sql, _, _ := query.ToSql() fmt.Println(sql)
Output: SELECT id, created, first_name FROM users
Example (Order) ¶
// out of order is ok too query := Select("id").Columns("created").From("users").Columns("first_name") sql, _, _ := query.ToSql() fmt.Println(sql)
Output: SELECT id, created, first_name FROM users
func (SelectBuilder) CrossJoin ¶
func (b SelectBuilder) CrossJoin(join string, rest ...any) SelectBuilder
CrossJoin adds a CROSS JOIN clause to the query.
func (SelectBuilder) CrossJoinOn ¶
func (b SelectBuilder) CrossJoinOn(join any, on Sqlizer) SelectBuilder
CrossJoinOn adds a CROSS JOIN ON clause to the query.
func (SelectBuilder) CrossJoinSelect ¶
func (b SelectBuilder) CrossJoinSelect(join SelectBuilder, alias string, on Sqlizer) SelectBuilder
CrossJoinSelect adds a CROSS JOIN ON clause to the query.
func (SelectBuilder) Distinct ¶
func (b SelectBuilder) Distinct() SelectBuilder
Distinct adds a DISTINCT clause to the query.
func (SelectBuilder) From ¶
func (b SelectBuilder) From(from string) SelectBuilder
From sets the FROM clause of the query.
Example ¶
Select("id", "created", "first_name").From("users") // ... continue building up your query
func (SelectBuilder) FromSelect ¶
func (b SelectBuilder) FromSelect(from Sqlizer, alias string) SelectBuilder
FromSelect sets a subquery into the FROM clause of the query.
Example ¶
usersByCompany := Select("company", "count(*) as n_users").From("users").GroupBy("company") query := Select("company.id", "company.name", "users_by_company.n_users"). FromSelect(usersByCompany, "users_by_company"). Join("company on company.id = users_by_company.company") sql, _, _ := query.ToSql() fmt.Println(sql)
Output: SELECT company.id, company.name, users_by_company.n_users FROM (SELECT company, count(*) as n_users FROM users GROUP BY company) AS users_by_company JOIN company on company.id = users_by_company.company
func (SelectBuilder) FullJoin ¶
func (b SelectBuilder) FullJoin(join string, rest ...any) SelectBuilder
FullJoin adds a FULL JOIN clause to the query.
func (SelectBuilder) FullJoinOn ¶
func (b SelectBuilder) FullJoinOn(join any, on Sqlizer) SelectBuilder
FullJoinOn adds a FULL JOIN ON clause to the query.
func (SelectBuilder) FullJoinSelect ¶
func (b SelectBuilder) FullJoinSelect(join SelectBuilder, alias string, on Sqlizer) SelectBuilder
FullJoinSelect adds a FULL JOIN ON clause to the query.
func (SelectBuilder) GroupBy ¶
func (b SelectBuilder) GroupBy(groupBys ...string) SelectBuilder
GroupBy adds GROUP BY expressions to the query.
func (SelectBuilder) Having ¶
func (b SelectBuilder) Having(pred any, rest ...any) SelectBuilder
Having adds an expression to the HAVING clause of the query.
See Where.
func (SelectBuilder) InnerJoin ¶
func (b SelectBuilder) InnerJoin(join string, rest ...any) SelectBuilder
InnerJoin adds a INNER JOIN clause to the query.
func (SelectBuilder) InnerJoinOn ¶
func (b SelectBuilder) InnerJoinOn(join any, on Sqlizer) SelectBuilder
InnerJoinOn adds a INNER JOIN ON clause to the query.
func (SelectBuilder) InnerJoinSelect ¶
func (b SelectBuilder) InnerJoinSelect(join SelectBuilder, alias string, on Sqlizer) SelectBuilder
InnerJoinSelect adds a INNER JOIN ON clause to the query.
func (SelectBuilder) Join ¶
func (b SelectBuilder) Join(join string, rest ...any) SelectBuilder
Join adds a JOIN clause to the query.
func (SelectBuilder) JoinClause ¶
func (b SelectBuilder) JoinClause(pred any, args ...any) SelectBuilder
JoinClause adds a join clause to the query.
func (SelectBuilder) JoinOn ¶
func (b SelectBuilder) JoinOn(join any, on Sqlizer) SelectBuilder
JoinOn adds a JOIN ON clause to the query.
func (SelectBuilder) JoinSelect ¶
func (b SelectBuilder) JoinSelect(join SelectBuilder, alias string, on Sqlizer) SelectBuilder
JoinSelect adds a JOIN ON clause to the query.
func (SelectBuilder) LeftJoin ¶
func (b SelectBuilder) LeftJoin(join string, rest ...any) SelectBuilder
LeftJoin adds a LEFT JOIN clause to the query.
func (SelectBuilder) LeftJoinOn ¶
func (b SelectBuilder) LeftJoinOn(join any, on Sqlizer) SelectBuilder
LeftJoinOn adds a LEFT JOIN ON clause to the query.
func (SelectBuilder) LeftJoinSelect ¶
func (b SelectBuilder) LeftJoinSelect(join SelectBuilder, alias string, on Sqlizer) SelectBuilder
LeftJoinSelect adds a LEFT JOIN ON clause to the query.
func (SelectBuilder) Limit ¶
func (b SelectBuilder) Limit(limit uint64) SelectBuilder
Limit sets a LIMIT clause on the query.
func (SelectBuilder) Offset ¶
func (b SelectBuilder) Offset(offset uint64) SelectBuilder
Offset sets a OFFSET clause on the query.
func (SelectBuilder) Options ¶
func (b SelectBuilder) Options(options ...string) SelectBuilder
Options adds select option to the query
func (SelectBuilder) OrderBy ¶
func (b SelectBuilder) OrderBy(orderBys ...string) SelectBuilder
OrderBy adds ORDER BY expressions to the query.
func (SelectBuilder) OrderByClause ¶
func (b SelectBuilder) OrderByClause(pred any, args ...any) SelectBuilder
OrderByClause adds ORDER BY clause to the query.
func (SelectBuilder) PlaceholderFormat ¶
func (b SelectBuilder) PlaceholderFormat(f PlaceholderFormat) SelectBuilder
PlaceholderFormat sets PlaceholderFormat (e.g. Question or Dollar) for the query.
func (SelectBuilder) Prefix ¶
func (b SelectBuilder) Prefix(sql string, args ...any) SelectBuilder
Prefix adds an expression to the beginning of the query
func (SelectBuilder) PrefixExpr ¶
func (b SelectBuilder) PrefixExpr(expr Sqlizer) SelectBuilder
PrefixExpr adds an expression to the very beginning of the query
func (SelectBuilder) RemoveColumns ¶
func (b SelectBuilder) RemoveColumns() SelectBuilder
RemoveColumns remove all columns from query. Must add a new column with Column or Columns methods, otherwise return a error.
func (SelectBuilder) RemoveGroupBy ¶
func (b SelectBuilder) RemoveGroupBy() SelectBuilder
RemoveGroupBy removes GROUP BY clause.
func (SelectBuilder) RemoveHaving ¶
func (b SelectBuilder) RemoveHaving() SelectBuilder
RemoveHaving removes HAVING clause.
func (SelectBuilder) RemoveJoins ¶
func (b SelectBuilder) RemoveJoins() SelectBuilder
RemoveJoins removes JOIN clauses.
func (SelectBuilder) RemoveLimit ¶
func (b SelectBuilder) RemoveLimit() SelectBuilder
RemoveLimit removes LIMIT clause.
func (SelectBuilder) RemoveOffset ¶
func (b SelectBuilder) RemoveOffset() SelectBuilder
RemoveOffset removes OFFSET clause.
func (SelectBuilder) RemoveOrderBy ¶
func (b SelectBuilder) RemoveOrderBy() SelectBuilder
RemoveOrderBy removes ORDER BY clause.
func (SelectBuilder) RemovePrefixes ¶
func (b SelectBuilder) RemovePrefixes() SelectBuilder
RemovePrefixes removes prefixes.
func (SelectBuilder) RemoveSuffixes ¶
func (b SelectBuilder) RemoveSuffixes() SelectBuilder
RemoveSuffixes removes suffixes.
func (SelectBuilder) RemoveWhere ¶
func (b SelectBuilder) RemoveWhere() SelectBuilder
RemoveWhere removes WHERE clause.
func (SelectBuilder) RightJoin ¶
func (b SelectBuilder) RightJoin(join string, rest ...any) SelectBuilder
RightJoin adds a RIGHT JOIN clause to the query.
func (SelectBuilder) RightJoinOn ¶
func (b SelectBuilder) RightJoinOn(join any, on Sqlizer) SelectBuilder
RightJoinOn adds a RIGHT JOIN ON clause to the query.
func (SelectBuilder) RightJoinSelect ¶
func (b SelectBuilder) RightJoinSelect(join SelectBuilder, alias string, on Sqlizer) SelectBuilder
RightJoinSelect adds a RIGHT JOIN ON clause to the query.
func (SelectBuilder) Suffix ¶
func (b SelectBuilder) Suffix(sql string, args ...any) SelectBuilder
Suffix adds an expression to the end of the query
func (SelectBuilder) SuffixExpr ¶
func (b SelectBuilder) SuffixExpr(expr Sqlizer) SelectBuilder
SuffixExpr adds an expression to the end of the query
func (SelectBuilder) ToSql ¶
func (b SelectBuilder) ToSql() (string, []any, error)
ToSql builds the query into a SQL string and bound args.
Example ¶
var db *sql.DB query := Select("id", "created", "first_name").From("users") sql, args, err := query.ToSql() if err != nil { log.Println(err) return } rows, err := db.Query(sql, args...) if err != nil { log.Println(err) return } defer rows.Close() for rows.Next() { // scan... }
func (SelectBuilder) Where ¶
func (b SelectBuilder) Where(pred any, args ...any) SelectBuilder
Where adds an expression to the WHERE clause of the query.
Expressions are ANDed together in the generated SQL.
Where accepts several types for its pred argument:
nil OR "" - ignored.
string - SQL expression. If the expression has SQL placeholders then a set of arguments must be passed as well, one for each placeholder.
map[string]interface{} OR Eq - map of SQL expressions to values. Each key is transformed into an expression like "<key> = ?", with the corresponding value bound to the placeholder. If the value is nil, the expression will be "<key> IS NULL". If the value is an array or slice, the expression will be "<key> IN (?,?,...)", with one placeholder for each item in the value. These expressions are ANDed together.
Where will panic if pred isn't any of the above types.
Example ¶
companyId := 20 Select("id", "created", "first_name").From("users").Where("company = ?", companyId)
Example (Helpers) ¶
companyId := 20 Select("id", "created", "first_name").From("users").Where(Eq{ "company": companyId, }) Select("id", "created", "first_name").From("users").Where(GtOrEq{ "created": time.Now().AddDate(0, 0, -7), }) Select("id", "created", "first_name").From("users").Where(And{ GtOrEq{ "created": time.Now().AddDate(0, 0, -7), }, Eq{ "company": companyId, }, })
Example (Multiple) ¶
companyId := 20 // multiple where's are ok Select("id", "created", "first_name"). From("users"). Where("company = ?", companyId). Where(GtOrEq{ "created": time.Now().AddDate(0, 0, -7), })
type Sqlizer ¶
Sqlizer is the interface that wraps the ToSql method.
ToSql returns a SQL representation of the Sqlizer, along with a slice of args as passed to e.g. database/sql.Exec. It can also return an error.
func Alias ¶
Alias allows to define alias for column in SelectBuilder. Useful when column is defined as complex expression like IF or CASE Ex:
.Column(Alias(caseStmt, "case_column"))
func ConcatExpr ¶
ConcatExpr builds an expression by concatenating strings and other expressions.
Ex:
name_expr := Expr("CONCAT(?, ' ', ?)", firstName, lastName) ConcatExpr("COALESCE(full_name,", name_expr, ")")
func ExceptDistinct ¶ added in v0.4.0
func Expr ¶
Expr builds an expression from a SQL fragment and arguments.
Ex:
Expr("FROM_UNIXTIME(?)", t)
func IntersectAll ¶ added in v0.4.0
func IntersectDistinct ¶ added in v0.4.0
func UnionDistinct ¶ added in v0.4.0
type StatementBuilderType ¶
StatementBuilderType is the type of StatementBuilder.
func (StatementBuilderType) Delete ¶
func (b StatementBuilderType) Delete(from string) DeleteBuilder
Delete returns a DeleteBuilder for this StatementBuilderType.
func (StatementBuilderType) Insert ¶
func (b StatementBuilderType) Insert(into string) InsertBuilder
Insert returns a InsertBuilder for this StatementBuilderType.
func (StatementBuilderType) PlaceholderFormat ¶
func (b StatementBuilderType) PlaceholderFormat(f PlaceholderFormat) StatementBuilderType
PlaceholderFormat sets the PlaceholderFormat field for any child builders.
func (StatementBuilderType) Replace ¶
func (b StatementBuilderType) Replace(into string) InsertBuilder
Replace returns a InsertBuilder for this StatementBuilderType with the statement keyword set to "REPLACE".
func (StatementBuilderType) Select ¶
func (b StatementBuilderType) Select(columns ...string) SelectBuilder
Select returns a SelectBuilder for this StatementBuilderType.
func (StatementBuilderType) Update ¶
func (b StatementBuilderType) Update(table string) UpdateBuilder
Update returns a UpdateBuilder for this StatementBuilderType.
func (StatementBuilderType) Where ¶
func (b StatementBuilderType) Where(pred any, args ...any) StatementBuilderType
Where adds WHERE expressions to the query.
See SelectBuilder.Where for more information.
func (StatementBuilderType) With ¶ added in v0.3.1
func (b StatementBuilderType) With() WithBuilder
With returns a WithBuilder for this StatementBuilderType.
type UpdateBuilder ¶
UpdateBuilder builds SQL UPDATE statements.
func Update ¶
func Update(table string) UpdateBuilder
Update returns a new UpdateBuilder with the given table name.
See UpdateBuilder.Table.
func (UpdateBuilder) From ¶
func (b UpdateBuilder) From(from string) UpdateBuilder
From adds FROM clause to the query FROM is valid construct in postgresql only.
func (UpdateBuilder) FromSelect ¶
func (b UpdateBuilder) FromSelect(from SelectBuilder, alias string) UpdateBuilder
FromSelect sets a subquery into the FROM clause of the query.
func (UpdateBuilder) Limit ¶
func (b UpdateBuilder) Limit(limit uint64) UpdateBuilder
Limit sets a LIMIT clause on the query.
func (UpdateBuilder) Offset ¶
func (b UpdateBuilder) Offset(offset uint64) UpdateBuilder
Offset sets a OFFSET clause on the query.
func (UpdateBuilder) OrderBy ¶
func (b UpdateBuilder) OrderBy(orderBys ...string) UpdateBuilder
OrderBy adds ORDER BY expressions to the query.
func (UpdateBuilder) PlaceholderFormat ¶
func (b UpdateBuilder) PlaceholderFormat(f PlaceholderFormat) UpdateBuilder
PlaceholderFormat sets PlaceholderFormat (e.g. Question or Dollar) for the query.
func (UpdateBuilder) Prefix ¶
func (b UpdateBuilder) Prefix(sql string, args ...any) UpdateBuilder
Prefix adds an expression to the beginning of the query
func (UpdateBuilder) PrefixExpr ¶
func (b UpdateBuilder) PrefixExpr(expr Sqlizer) UpdateBuilder
PrefixExpr adds an expression to the very beginning of the query
func (UpdateBuilder) Set ¶
func (b UpdateBuilder) Set(column string, value any) UpdateBuilder
Set adds SET clauses to the query.
func (UpdateBuilder) SetMap ¶
func (b UpdateBuilder) SetMap(clauses map[string]any) UpdateBuilder
SetMap is a convenience method which calls .Set for each key/value pair in clauses.
func (UpdateBuilder) Suffix ¶
func (b UpdateBuilder) Suffix(sql string, args ...any) UpdateBuilder
Suffix adds an expression to the end of the query
func (UpdateBuilder) SuffixExpr ¶
func (b UpdateBuilder) SuffixExpr(expr Sqlizer) UpdateBuilder
SuffixExpr adds an expression to the end of the query
func (UpdateBuilder) Table ¶
func (b UpdateBuilder) Table(table string) UpdateBuilder
Table sets the table to be updated.
func (UpdateBuilder) ToSql ¶
func (b UpdateBuilder) ToSql() (string, []any, error)
ToSql builds the query into a SQL string and bound args.
func (UpdateBuilder) Where ¶
func (b UpdateBuilder) Where(pred any, args ...any) UpdateBuilder
Where adds WHERE expressions to the query.
See SelectBuilder.Where for more information.
type WithBuilder ¶ added in v0.3.1
WithBuilder builds a WITH clause.
func (WithBuilder) As ¶ added in v0.3.1
func (b WithBuilder) As(alias string, sql Sqlizer) WithBuilder
As adds a "... AS (...)" part to the WITH clause.
func (WithBuilder) Delete ¶ added in v0.3.1
func (b WithBuilder) Delete(from string) DeleteBuilder
Delete starts a primary DELETE statement for the WITH clause.
func (WithBuilder) Insert ¶ added in v0.3.1
func (b WithBuilder) Insert(into string) InsertBuilder
Insert starts a primary INSERT statement for the WITH clause.
func (WithBuilder) PlaceholderFormat ¶ added in v0.3.1
func (b WithBuilder) PlaceholderFormat(f PlaceholderFormat) WithBuilder
PlaceholderFormat sets PlaceholderFormat (e.g. Question or Dollar) for the WITH clause.
func (WithBuilder) Select ¶ added in v0.3.1
func (b WithBuilder) Select(columns ...string) SelectBuilder
Select starts a primary SELECT statement for the WITH clause.
func (WithBuilder) ToSql ¶ added in v0.3.1
func (b WithBuilder) ToSql() (string, []any, error)
ToSql builds the query into a SQL string and bound args.
func (WithBuilder) Update ¶ added in v0.3.1
func (b WithBuilder) Update(table string) UpdateBuilder
Update starts a primary UPDATE statement for the WITH clause.