Support for subqueries, Group By and Having clause.

sqlbuilder/select_statement_table.go

@@ -0,0 +1,75 @@
+package sqlbuilder
+
+import "bytes"
+
+type SelectStatementTable struct {
+	statement SelectStatement
+	columns   []NonAliasColumn
+	alias     string
+}
+
+func (s *SelectStatementTable) Columns() []NonAliasColumn {
+	return s.columns
+}
+
+func (s *SelectStatementTable) Column(name string) NonAliasColumn {
+	return &baseColumn{
+		name:      name,
+		tableName: s.alias,
+	}
+}
+
+func (s *SelectStatementTable) ColumnFrom(column NonAliasColumn) NonAliasColumn {
+	return &baseColumn{
+		name:      column.TableName() + "." + column.Name(),
+		tableName: s.alias,
+	}
+}
+
+func (s *SelectStatementTable) SerializeSql(out *bytes.Buffer) error {
+	out.WriteString("( ")
+	statementStr, err := s.statement.String()
+
+	if err != nil {
+		return err
+	}
+
+	out.WriteString(statementStr)
+
+	out.WriteString(" ) AS ")
+	out.WriteString(s.alias)
+
+	return nil
+}
+
+// Generates a select query on the current tableName.
+func (s *SelectStatementTable) Select(projections ...Projection) SelectStatement {
+	return newSelectStatement(s, projections)
+}
+
+// Creates a inner join tableName expression using onCondition.
+func (s *SelectStatementTable) InnerJoinOn(table ReadableTable, onCondition BoolExpression) ReadableTable {
+	return InnerJoinOn(s, table, onCondition)
+}
+
+func (s *SelectStatementTable) InnerJoinUsing(table ReadableTable, col1 Column, col2 Column) ReadableTable {
+	return InnerJoinOn(s, table, col1.Eq(col2))
+}
+
+// Creates a left join tableName expression using onCondition.
+func (s *SelectStatementTable) LeftJoinOn(table ReadableTable, onCondition BoolExpression) ReadableTable {
+	return LeftJoinOn(s, table, onCondition)
+}
+
+// Creates a right join tableName expression using onCondition.
+func (s *SelectStatementTable) RightJoinOn(table ReadableTable, onCondition BoolExpression) ReadableTable {
+	return RightJoinOn(s, table, onCondition)
+}
+
+func (s *SelectStatementTable) FullJoin(table ReadableTable, col1 Column, col2 Column) ReadableTable {
+	return FullJoin(s, table, col1.Eq(col2))
+}
+
+func (s *SelectStatementTable) CrossJoin(table ReadableTable) ReadableTable {
+	return CrossJoin(s, table)
+}