49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
// Copyright 2018 Drone.IO Inc.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package datastore
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import (
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"strconv"
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"github.com/russross/meddler"
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)
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// rebind is a helper function that changes the sql
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// bind type from ? to $ for postgres queries.
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func rebind(query string) string {
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if meddler.Default != meddler.PostgreSQL {
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return query
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}
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qb := []byte(query)
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// Add space enough for 5 params before we have to allocate
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rqb := make([]byte, 0, len(qb)+5)
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j := 1
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for _, b := range qb {
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switch b {
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case '?':
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rqb = append(rqb, '$')
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for _, b := range strconv.Itoa(j) {
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rqb = append(rqb, byte(b))
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}
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j++
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case '`':
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rqb = append(rqb, ' ')
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default:
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rqb = append(rqb, b)
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}
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}
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return string(rqb)
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}
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