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Support for raw sql input.

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This commit is contained in:
zer0sub 2019-06-04 12:10:23 +02:00
parent 384c0c67f5
commit 8f51662fe5
31 changed files with 307 additions and 279 deletions
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54
sqlbuilder/expression.go
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@ -4,25 +4,25 @@ import (
"github.com/dropbox/godropbox/errors"
)
// An expression
type expression interface {
// An Expression
type Expression interface {
clause
projection
groupByClause
orderByClause
OrderByClause
IS_NULL() BoolExpression
IS_NOT_NULL() BoolExpression
IN(expressions ...expression) BoolExpression
NOT_IN(expressions ...expression) BoolExpression
IN(expressions ...Expression) BoolExpression
NOT_IN(expressions ...Expression) BoolExpression
AS(alias string) projection
ASC() orderByClause
DESC() orderByClause
ASC() OrderByClause
DESC() OrderByClause
CAST_TO(dbType string) expression
CAST_TO(dbType string) Expression
CAST_TO_BOOL() BoolExpression
CAST_TO_INTEGER() IntegerExpression
CAST_TO_DOUBLE() FloatExpression
@ -35,7 +35,7 @@ type expression interface {
}
type expressionInterfaceImpl struct {
parent expression
parent Expression
}
func (e *expressionInterfaceImpl) IS_NULL() BoolExpression {
@ -46,11 +46,11 @@ func (e *expressionInterfaceImpl) IS_NOT_NULL() BoolExpression {
return newPostifxBoolExpression(e.parent, "IS NOT NULL")
}
func (e *expressionInterfaceImpl) IN(expressions ...expression) BoolExpression {
func (e *expressionInterfaceImpl) IN(expressions ...Expression) BoolExpression {
return newBinaryBoolExpression(e.parent, WRAP(expressions...), "IN")
}
func (e *expressionInterfaceImpl) NOT_IN(expressions ...expression) BoolExpression {
func (e *expressionInterfaceImpl) NOT_IN(expressions ...Expression) BoolExpression {
return newBinaryBoolExpression(e.parent, WRAP(expressions...), "NOT IN")
}
@ -58,15 +58,15 @@ func (e *expressionInterfaceImpl) AS(alias string) projection {
return NewAlias(e.parent, alias)
}
func (e *expressionInterfaceImpl) ASC() orderByClause {
func (e *expressionInterfaceImpl) ASC() OrderByClause {
return &orderByClauseImpl{expression: e.parent, ascent: true}
}
func (e *expressionInterfaceImpl) DESC() orderByClause {
func (e *expressionInterfaceImpl) DESC() OrderByClause {
return &orderByClauseImpl{expression: e.parent, ascent: false}
}
func (e *expressionInterfaceImpl) CAST_TO(dbType string) expression {
func (e *expressionInterfaceImpl) CAST_TO(dbType string) Expression {
return newCast(e.parent, dbType)
}
@ -120,11 +120,11 @@ func (e *expressionInterfaceImpl) serializeAsOrderBy(statement statementType, ou
// Representation of binary operations (e.g. comparisons, arithmetic)
type binaryOpExpression struct {
lhs, rhs expression
lhs, rhs Expression
operator string
}
func newBinaryExpression(lhs, rhs expression, operator string, parent ...expression) binaryOpExpression {
func newBinaryExpression(lhs, rhs Expression, operator string) binaryOpExpression {
binaryExpression := binaryOpExpression{
lhs: lhs,
rhs: rhs,
@ -136,7 +136,7 @@ func newBinaryExpression(lhs, rhs expression, operator string, parent ...express
func (c *binaryOpExpression) serialize(statement statementType, out *queryData, options ...serializeOption) error {
if c == nil {
return errors.New("Binary expression is nil.")
return errors.New("Binary Expression is nil.")
}
if c.lhs == nil {
return errors.Newf("nil lhs.")
@ -168,13 +168,13 @@ func (c *binaryOpExpression) serialize(statement statementType, out *queryData,
return nil
}
// A prefix operator expression
// A prefix operator Expression
type prefixOpExpression struct {
expression expression
expression Expression
operator string
}
func newPrefixExpression(expression expression, operator string) prefixOpExpression {
func newPrefixExpression(expression Expression, operator string) prefixOpExpression {
prefixExpression := prefixOpExpression{
expression: expression,
operator: operator,
@ -185,13 +185,13 @@ func newPrefixExpression(expression expression, operator string) prefixOpExpress
func (p *prefixOpExpression) serialize(statement statementType, out *queryData, options ...serializeOption) error {
if p == nil {
return errors.New("Prefix expression is nil.")
return errors.New("Prefix Expression is nil.")
}
out.writeString(p.operator + " ")
if p.expression == nil {
return errors.Newf("nil prefix expression.")
return errors.Newf("nil prefix Expression.")
}
if err := p.expression.serialize(statement, out); err != nil {
return err
@ -200,13 +200,13 @@ func (p *prefixOpExpression) serialize(statement statementType, out *queryData,
return nil
}
// A postifx operator expression
// A postifx operator Expression
type postfixOpExpression struct {
expression expression
expression Expression
operator string
}
func newPostfixOpExpression(expression expression, operator string) postfixOpExpression {
func newPostfixOpExpression(expression Expression, operator string) postfixOpExpression {
postfixOpExpression := postfixOpExpression{
expression: expression,
operator: operator,
@ -217,11 +217,11 @@ func newPostfixOpExpression(expression expression, operator string) postfixOpExp
func (p *postfixOpExpression) serialize(statement statementType, out *queryData, options ...serializeOption) error {
if p == nil {
return errors.New("Postifx operator expression is nil.")
return errors.New("Postifx operator Expression is nil.")
}
if p.expression == nil {
return errors.Newf("nil prefix expression.")
return errors.Newf("nil prefix Expression.")
}
if err := p.expression.serialize(statement, out); err != nil {
return err