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MySQL: Add Where and Limit for Delete statement.

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go-jet 2019-08-11 18:23:02 +02:00
parent a3ae52c43c
commit 0dd976601e
6 changed files with 91 additions and 29 deletions
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25
mysql/delete_statement.go
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@ -5,29 +5,44 @@ import "github.com/go-jet/jet/internal/jet"
type DeleteStatement interface {
jet.Statement
WHERE(expression BoolExpression) Statement
WHERE(expression BoolExpression) DeleteStatement
ORDER_BY(orderByClauses ...jet.OrderByClause) DeleteStatement
LIMIT(limit int64) DeleteStatement
}
type deleteStatementImpl struct {
jet.StatementImpl
Delete jet.ClauseStatementBegin
Where jet.ClauseWhere
Delete jet.ClauseStatementBegin
Where jet.ClauseWhere
OrderBy jet.ClauseOrderBy
Limit jet.ClauseLimit
}
func newDeleteStatement(table Table) DeleteStatement {
newDelete := &deleteStatementImpl{}
newDelete.StatementImpl = jet.NewStatementImpl(Dialect, jet.DeleteStatementType, newDelete, &newDelete.Delete,
&newDelete.Where)
&newDelete.Where, &newDelete.OrderBy, &newDelete.Limit)
newDelete.Delete.Name = "DELETE FROM"
newDelete.Delete.Tables = append(newDelete.Delete.Tables, table)
newDelete.Where.Mandatory = true
newDelete.Limit.Count = -1
return newDelete
}
func (d *deleteStatementImpl) WHERE(expression BoolExpression) Statement {
func (d *deleteStatementImpl) WHERE(expression BoolExpression) DeleteStatement {
d.Where.Condition = expression
return d
}
func (s *deleteStatementImpl) ORDER_BY(orderByClauses ...jet.OrderByClause) DeleteStatement {
s.OrderBy.List = orderByClauses
return s
}
func (s *deleteStatementImpl) LIMIT(limit int64) DeleteStatement {
s.Limit.Count = limit
return s
}