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dovholuknf
118 lines
2.6 KiB
Go
118 lines
2.6 KiB
Go
/*
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Copyright 2019 NetFoundry, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package predicate
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import (
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"fmt"
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"gopkg.in/Masterminds/squirrel.v1"
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)
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//type Sqlizer interface {
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// Parts() (string, []interface{}, error)
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//}
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type binaryOp struct {
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Identifier string
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LeftValue interface{}
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RightValue interface{}
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}
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type unaryOp struct {
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Identifier string
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value interface{}
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}
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type Between binaryOp
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func newBetween(identifier string, leftValue, rightValue interface{}) Between {
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return Between{
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Identifier: identifier,
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LeftValue: leftValue,
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RightValue: rightValue,
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}
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}
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func (b Between) ToSql() (string, []interface{}, error) {
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args := []interface{}{b.LeftValue, b.RightValue}
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sql := fmt.Sprintf("%s BETWEEN %s AND %s", b.Identifier, "?", "?")
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return sql, args, nil
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}
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type NotBetween binaryOp
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func newNotBetween(identifier string, leftValue, rightValue interface{}) NotBetween {
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return NotBetween{
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Identifier: identifier,
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LeftValue: leftValue,
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RightValue: rightValue,
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}
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}
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func (b NotBetween) ToSql() (string, []interface{}, error) {
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args := []interface{}{b.LeftValue, b.RightValue}
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sql := fmt.Sprintf("%s NOT BETWEEN %s AND %s", b.Identifier, "?", "?")
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return sql, args, nil
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}
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type Contains unaryOp
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func newContains(identifier, value string) Contains {
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return Contains{
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Identifier: identifier,
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value: value,
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}
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}
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func (c Contains) ToSql() (string, []interface{}, error) {
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v := fmt.Sprintf("%%%s%%", c.value)
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args := []interface{}{v}
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sql := fmt.Sprintf("%s LIKE %s", c.Identifier, "?")
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return sql, args, nil
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}
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type NotContains unaryOp
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func newNotContains(identifier, value string) NotContains {
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return NotContains{
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Identifier: identifier,
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value: value,
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}
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}
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func (c NotContains) ToSql() (string, []interface{}, error) {
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v := fmt.Sprintf("%%%s%%", c.value)
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args := []interface{}{v}
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sql := fmt.Sprintf("%s NOT LIKE %s", c.Identifier, "?")
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return sql, args, nil
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}
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type InSubSelect struct {
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Column string
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Select squirrel.SelectBuilder
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}
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func (ss InSubSelect) ToSql() (string, []interface{}, error) {
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s, b, err := ss.Select.ToSql()
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return fmt.Sprintf("%s IN (%s)", ss.Column, s), b, err
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}
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