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48 lines
861 B
Go
48 lines
861 B
Go
package builder
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import "fmt"
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// IsNull
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type IsNull [1]string
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var _ Cond = IsNull{""}
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func (isNull IsNull) WriteTo(w Writer) error {
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_, err := fmt.Fprintf(w, "%s IS NULL", isNull[0])
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return err
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}
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func (isNull IsNull) And(conds ...Cond) Cond {
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return And(isNull, And(conds...))
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}
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func (isNull IsNull) Or(conds ...Cond) Cond {
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return Or(isNull, Or(conds...))
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}
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func (isNull IsNull) IsValid() bool {
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return len(isNull[0]) > 0
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}
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// NotNull
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type NotNull [1]string
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var _ Cond = NotNull{""}
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func (notNull NotNull) WriteTo(w Writer) error {
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_, err := fmt.Fprintf(w, "%s IS NOT NULL", notNull[0])
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return err
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}
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func (notNull NotNull) And(conds ...Cond) Cond {
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return And(notNull, And(conds...))
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}
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func (notNull NotNull) Or(conds ...Cond) Cond {
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return Or(notNull, Or(conds...))
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}
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func (notNull NotNull) IsValid() bool {
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return len(notNull[0]) > 0
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}
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