61 lines
1.3 KiB
Go
61 lines
1.3 KiB
Go
package sqlbuilder
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import (
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"database/sql"
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"github.com/dropbox/godropbox/errors"
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"github.com/sub0zero/go-sqlbuilder/types"
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)
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type deleteStatement interface {
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statement
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WHERE(expression boolExpression) deleteStatement
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}
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func newDeleteStatement(table writableTable) deleteStatement {
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return &deleteStatementImpl{
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table: table,
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}
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}
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type deleteStatementImpl struct {
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table writableTable
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where boolExpression
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}
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func (d *deleteStatementImpl) WHERE(expression boolExpression) deleteStatement {
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d.where = expression
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return d
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}
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func (d *deleteStatementImpl) Sql() (query string, args []interface{}, err error) {
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queryData := &queryData{}
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queryData.writeString("DELETE FROM ")
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if d.table == nil {
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return "", nil, errors.New("nil tableName.")
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}
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if err = d.table.serialize(delete_statement, queryData); err != nil {
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return
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}
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if d.where == nil {
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return "", nil, errors.New("Deleting without a WHERE clause.")
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}
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if err = queryData.writeWhere(delete_statement, d.where); err != nil {
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return
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}
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return queryData.buff.String() + ";", queryData.args, nil
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}
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func (u *deleteStatementImpl) Query(db types.Db, destination interface{}) error {
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return Query(u, db, destination)
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}
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func (u *deleteStatementImpl) Execute(db types.Db) (res sql.Result, err error) {
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return Execute(u, db)
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}
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