94 lines
2.6 KiB
Go
94 lines
2.6 KiB
Go
package sqlbuilder
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type ExpressionTable interface {
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ReadableTable
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RefIntColumnName(name string) *IntegerColumn
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RefIntColumn(column Column) *IntegerColumn
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RefStringColumn(column Column) *StringColumn
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}
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type expressionTableImpl struct {
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statement Expression
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columns []Column
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alias string
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}
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// Returns the tableName's name in the database
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func (t *expressionTableImpl) SchemaName() string {
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return ""
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}
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func (s *expressionTableImpl) TableName() string {
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return s.alias
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}
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func (s *expressionTableImpl) Columns() []Column {
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return s.columns
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}
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func (s *expressionTableImpl) RefIntColumnName(name string) *IntegerColumn {
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intColumn := NewIntegerColumn(name, NotNullable)
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intColumn.setTableName(s.alias)
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return intColumn
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}
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func (s *expressionTableImpl) RefIntColumn(column Column) *IntegerColumn {
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intColumn := NewIntegerColumn(column.TableName()+"."+column.Name(), NotNullable)
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intColumn.setTableName(s.alias)
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return intColumn
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}
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func (s *expressionTableImpl) RefStringColumn(column Column) *StringColumn {
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strColumn := NewStringColumn(column.Name(), NotNullable)
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strColumn.setTableName(column.TableName())
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return strColumn
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}
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func (s *expressionTableImpl) SerializeSql(out *queryData) error {
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out.WriteString("( ")
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err := s.statement.Serialize(out)
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if err != nil {
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return err
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}
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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 *expressionTableImpl) 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 *expressionTableImpl) INNER_JOIN(table ReadableTable, onCondition BoolExpression) ReadableTable {
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return InnerJoinOn(s, table, onCondition)
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}
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//func (s *expressionTableImpl) InnerJoinUsing(table ReadableTable, col1 Column, col2 Column) ReadableTable {
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// return INNER_JOIN(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 *expressionTableImpl) LEFT_JOIN(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 *expressionTableImpl) RIGHT_JOIN(table ReadableTable, onCondition BoolExpression) ReadableTable {
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return RightJoinOn(s, table, onCondition)
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}
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func (s *expressionTableImpl) FULL_JOIN(table ReadableTable, onCondition BoolExpression) ReadableTable {
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return FullJoin(s, table, onCondition)
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}
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func (s *expressionTableImpl) CROSS_JOIN(table ReadableTable) ReadableTable {
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return CrossJoin(s, table)
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}
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