75 lines
2 KiB
Go
75 lines
2 KiB
Go
package sqlbuilder
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import "bytes"
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type SelectStatementTable struct {
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statement SelectStatement
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columns []NonAliasColumn
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alias string
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}
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func (s *SelectStatementTable) Columns() []NonAliasColumn {
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return s.columns
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}
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func (s *SelectStatementTable) Column(name string) NonAliasColumn {
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return &baseColumn{
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name: name,
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tableName: s.alias,
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}
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}
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func (s *SelectStatementTable) ColumnFrom(column NonAliasColumn) NonAliasColumn {
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return &baseColumn{
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name: column.TableName() + "." + column.Name(),
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tableName: s.alias,
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}
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}
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func (s *SelectStatementTable) SerializeSql(out *bytes.Buffer) error {
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out.WriteString("( ")
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statementStr, err := s.statement.String()
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if err != nil {
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return err
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}
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out.WriteString(statementStr)
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out.WriteString(" ) AS ")
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out.WriteString(s.alias)
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return nil
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}
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// Generates a select query on the current tableName.
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func (s *SelectStatementTable) Select(projections ...Projection) SelectStatement {
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return newSelectStatement(s, projections)
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}
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// Creates a inner join tableName expression using onCondition.
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func (s *SelectStatementTable) InnerJoinOn(table ReadableTable, onCondition BoolExpression) ReadableTable {
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return InnerJoinOn(s, table, onCondition)
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}
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func (s *SelectStatementTable) InnerJoinUsing(table ReadableTable, col1 Column, col2 Column) ReadableTable {
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return InnerJoinOn(s, table, col1.Eq(col2))
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}
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// Creates a left join tableName expression using onCondition.
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func (s *SelectStatementTable) LeftJoinOn(table ReadableTable, onCondition BoolExpression) ReadableTable {
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return LeftJoinOn(s, table, onCondition)
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}
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// Creates a right join tableName expression using onCondition.
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func (s *SelectStatementTable) RightJoinOn(table ReadableTable, onCondition BoolExpression) ReadableTable {
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return RightJoinOn(s, table, onCondition)
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}
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func (s *SelectStatementTable) FullJoin(table ReadableTable, col1 Column, col2 Column) ReadableTable {
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return FullJoin(s, table, col1.Eq(col2))
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}
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func (s *SelectStatementTable) CrossJoin(table ReadableTable) ReadableTable {
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return CrossJoin(s, table)
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}
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