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Support for additional mathematical functions.

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This commit is contained in:
zer0sub 2019-06-01 15:00:37 +02:00
parent cf022ab68d
commit 52bdd4b59f
14 changed files with 436 additions and 79 deletions
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12
sqlbuilder/float_expression.go
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@ -19,6 +19,8 @@ type FloatExpression interface {
SUB(rhs FloatExpression) FloatExpression
MUL(rhs FloatExpression) FloatExpression
DIV(rhs FloatExpression) FloatExpression
MOD(rhs FloatExpression) FloatExpression
POW(rhs FloatExpression) FloatExpression
}
type floatInterfaceImpl struct {
@ -73,6 +75,14 @@ func (n *floatInterfaceImpl) DIV(expression FloatExpression) FloatExpression {
return newBinaryFloatExpression(n.parent, expression, "/")
}
func (n *floatInterfaceImpl) MOD(expression FloatExpression) FloatExpression {
return newBinaryFloatExpression(n.parent, expression, "%")
}
func (n *floatInterfaceImpl) POW(expression FloatExpression) FloatExpression {
return newBinaryFloatExpression(n.parent, expression, "^")
}
//---------------------------------------------------//
type binaryFloatExpression struct {
expressionInterfaceImpl
@ -113,7 +123,7 @@ func newFloatExpressionWrap(expression expression) FloatExpression {
func (n *floatExpressionWrapper) serialize(statement statementType, out *queryData, options ...serializeOption) error {
if n == nil {
return errors.New("Float expression wrapper is nil. ")
return errors.New("Float expressions wrapper is nil. ")
}
//out.writeString("(")
err := n.expression.serialize(statement, out)