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40 lines
746 B
Go
40 lines
746 B
Go
// Copyright 2016 The Xorm Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package builder
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import "fmt"
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type expr struct {
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sql string
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args []interface{}
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}
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var _ Cond = expr{}
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// Expr generate customerize SQL
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func Expr(sql string, args ...interface{}) Cond {
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return expr{sql, args}
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}
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func (expr expr) WriteTo(w Writer) error {
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if _, err := fmt.Fprint(w, expr.sql); err != nil {
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return err
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}
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w.Append(expr.args...)
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return nil
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}
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func (expr expr) And(conds ...Cond) Cond {
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return And(expr, And(conds...))
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}
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func (expr expr) Or(conds ...Cond) Cond {
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return Or(expr, Or(conds...))
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}
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func (expr expr) IsValid() bool {
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return len(expr.sql) > 0
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}
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