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Support for additional string functions.

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This commit is contained in:
zer0sub 2019-06-02 12:45:46 +02:00
parent 3c4b078941
commit aef698bdbc
6 changed files with 272 additions and 19 deletions
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60
sqlbuilder/string_expression.go
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@ -1,51 +1,75 @@
package sqlbuilder
type stringExpression interface {
type StringExpression interface {
expression
EQ(rhs stringExpression) BoolExpression
NOT_EQ(rhs stringExpression) BoolExpression
IS_DISTINCT_FROM(rhs stringExpression) BoolExpression
IS_NOT_DISTINCT_FROM(rhs stringExpression) BoolExpression
EQ(rhs StringExpression) BoolExpression
NOT_EQ(rhs StringExpression) BoolExpression
IS_DISTINCT_FROM(rhs StringExpression) BoolExpression
IS_NOT_DISTINCT_FROM(rhs StringExpression) BoolExpression
LT(rhs stringExpression) BoolExpression
LT_EQ(rhs stringExpression) BoolExpression
GT(rhs stringExpression) BoolExpression
GT_EQ(rhs stringExpression) BoolExpression
LT(rhs StringExpression) BoolExpression
LT_EQ(rhs StringExpression) BoolExpression
GT(rhs StringExpression) BoolExpression
GT_EQ(rhs StringExpression) BoolExpression
CONCAT(rhs expression) StringExpression
}
type stringInterfaceImpl struct {
parent stringExpression
parent StringExpression
}
func (s *stringInterfaceImpl) EQ(rhs stringExpression) BoolExpression {
func (s *stringInterfaceImpl) EQ(rhs StringExpression) BoolExpression {
return EQ(s.parent, rhs)
}
func (s *stringInterfaceImpl) NOT_EQ(rhs stringExpression) BoolExpression {
func (s *stringInterfaceImpl) NOT_EQ(rhs StringExpression) BoolExpression {
return NOT_EQ(s.parent, rhs)
}
func (s *stringInterfaceImpl) IS_DISTINCT_FROM(rhs stringExpression) BoolExpression {
func (s *stringInterfaceImpl) IS_DISTINCT_FROM(rhs StringExpression) BoolExpression {
return IS_DISTINCT_FROM(s.parent, rhs)
}
func (s *stringInterfaceImpl) IS_NOT_DISTINCT_FROM(rhs stringExpression) BoolExpression {
func (s *stringInterfaceImpl) IS_NOT_DISTINCT_FROM(rhs StringExpression) BoolExpression {
return IS_NOT_DISTINCT_FROM(s.parent, rhs)
}
func (s *stringInterfaceImpl) GT(rhs stringExpression) BoolExpression {
func (s *stringInterfaceImpl) GT(rhs StringExpression) BoolExpression {
return GT(s.parent, rhs)
}
func (s *stringInterfaceImpl) GT_EQ(rhs stringExpression) BoolExpression {
func (s *stringInterfaceImpl) GT_EQ(rhs StringExpression) BoolExpression {
return GT_EQ(s.parent, rhs)
}
func (s *stringInterfaceImpl) LT(rhs stringExpression) BoolExpression {
func (s *stringInterfaceImpl) LT(rhs StringExpression) BoolExpression {
return LT(s.parent, rhs)
}
func (s *stringInterfaceImpl) LT_EQ(rhs stringExpression) BoolExpression {
func (s *stringInterfaceImpl) LT_EQ(rhs StringExpression) BoolExpression {
return LT_EQ(s.parent, rhs)
}
func (s *stringInterfaceImpl) CONCAT(rhs expression) StringExpression {
return newBinaryStringExpression(s.parent, rhs, "||")
}
//---------------------------------------------------//
type binaryStringExpression struct {
expressionInterfaceImpl
stringInterfaceImpl
binaryOpExpression
}
func newBinaryStringExpression(lhs, rhs expression, operator string) StringExpression {
boolExpression := binaryStringExpression{}
boolExpression.binaryOpExpression = newBinaryExpression(lhs, rhs, operator)
boolExpression.expressionInterfaceImpl.parent = &boolExpression
boolExpression.stringInterfaceImpl.parent = &boolExpression
return &boolExpression
}