75 lines
1.7 KiB
Go
75 lines
1.7 KiB
Go
package mysql
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import (
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"github.com/go-jet/jet/v2/internal/jet"
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"strconv"
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)
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type cast struct {
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jet.Cast
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}
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// CAST function converts a expr (of any type) into latter specified datatype.
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func CAST(expr Expression) *cast {
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ret := &cast{}
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ret.Cast = jet.NewCastImpl(expr)
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return ret
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}
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// AS casts expressions to castType
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func (c *cast) AS(castType string) Expression {
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return c.Cast.AS(castType)
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}
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// AS_DATETIME cast expression to DATETIME type
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func (c *cast) AS_DATETIME() DateTimeExpression {
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return DateTimeExp(c.AS("DATETIME"))
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}
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// AS_SIGNED casts expression to SIGNED type
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func (c *cast) AS_SIGNED() IntegerExpression {
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return IntExp(c.AS("SIGNED"))
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}
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// AS_UNSIGNED casts expression to UNSIGNED type
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func (c *cast) AS_UNSIGNED() IntegerExpression {
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return IntExp(c.AS("UNSIGNED"))
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}
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// AS_CHAR casts expression to CHAR type with optional length
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func (c *cast) AS_CHAR(length ...int) StringExpression {
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if len(length) > 0 {
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return StringExp(c.AS("CHAR(" + strconv.Itoa(length[0]) + ")"))
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}
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return StringExp(c.AS("CHAR"))
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}
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// AS_DATE casts expression AS DATE type
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func (c *cast) AS_DATE() DateExpression {
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return DateExp(c.AS("DATE"))
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}
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func (c *cast) AS_FLOAT() FloatExpression {
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return FloatExp(c.AS("FLOAT"))
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}
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func (c *cast) AS_DOUBLE() FloatExpression {
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return FloatExp(c.AS("DOUBLE"))
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}
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// AS_DECIMAL casts expression AS DECIMAL type
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func (c *cast) AS_DECIMAL() FloatExpression {
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return FloatExp(c.AS("DECIMAL"))
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}
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// AS_TIME casts expression AS TIME type
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func (c *cast) AS_TIME() TimeExpression {
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return TimeExp(c.AS("TIME"))
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}
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// AS_BINARY casts expression as BINARY type
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func (c *cast) AS_BINARY() BlobExpression {
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return BlobExp(c.AS("BINARY"))
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}
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