MySQL cast expressions.

mysql/mysql_cast.go

@@ -0,0 +1,55 @@
+package mysql
+
+import (
+	"github.com/go-jet/jet"
+)
+
+type cast interface {
+	AS_DATE() DateExpression
+	AS_TIME() TimeExpression
+	AS_DATETIME() DateTimeExpression
+	AS_CHAR() StringExpression
+	AS_SIGNED() IntegerExpression
+	AS_UNSIGNED() IntegerExpression
+	AS_BINARY() StringExpression
+}
+
+type castImpl struct {
+	jet.Cast
+}
+
+func CAST(expr jet.Expression) cast {
+	castImpl := &castImpl{}
+
+	castImpl.Cast = jet.NewCastImpl(expr)
+
+	return castImpl
+}
+
+func (c *castImpl) AS_DATE() DateExpression {
+	return jet.DateExp(c.As("DATE"))
+}
+
+func (c *castImpl) AS_DATETIME() DateTimeExpression {
+	return jet.TimestampExp(c.As("DATETIME"))
+}
+
+func (c *castImpl) AS_TIME() TimeExpression {
+	return jet.TimeExp(c.As("TIME"))
+}
+
+func (c *castImpl) AS_CHAR() StringExpression {
+	return jet.StringExp(c.As("CHAR"))
+}
+
+func (c *castImpl) AS_SIGNED() IntegerExpression {
+	return jet.IntExp(c.As("SIGNED"))
+}
+
+func (c *castImpl) AS_UNSIGNED() IntegerExpression {
+	return jet.IntExp(c.As("UNSIGNED"))
+}
+
+func (c *castImpl) AS_BINARY() StringExpression {
+	return jet.StringExp(c.As("BINARY"))
+}