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39 lines
746 B
39 lines
746 B
// 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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