Mercurial > gemma

annotate pkg/controllers/common.go @ 3776:6521c962a7b6

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Add 'cc' parameter to search imports for a comma separated list of country codes for the the importing person.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 02 Jul 2019 16:44:04 +0200
parents 4c254651d80b
children 5f47eeea988d
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1 // This is Free Software under GNU Affero General Public License v >= 3.0
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2 // without warranty, see README.md and license for details.
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3 //
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4 // SPDX-License-Identifier: AGPL-3.0-or-later
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5 // License-Filename: LICENSES/AGPL-3.0.txt
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6 //
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7 // Copyright (C) 2019 by via donau
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8 // – Österreichische Wasserstraßen-Gesellschaft mbH
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9 // Software engineering by Intevation GmbH
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10 //
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11 // Author(s):
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12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de>
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13
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14 package controllers
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15
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16 import (
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17 "fmt"
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18 "log"
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19 "strconv"
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20 "strings"
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21
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22 "github.com/jackc/pgx/pgtype"
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23 )
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24
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25 type (
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26 filterNode interface {
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27 serialize(*strings.Builder, *[]interface{})
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28 }
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29
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30 filterTerm struct {
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31 format string
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32 args []interface{}
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33 }
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34
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35 filterNot struct {
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36 filterNode
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37 }
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38
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39 filterAnd []filterNode
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40 filterOr []filterNode
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41 )
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42
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43 func (ft *filterTerm) serialize(stmt *strings.Builder, args *[]interface{}) {
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44 indices := make([]interface{}, len(ft.args))
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45 for i := range indices {
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46 indices[i] = len(*args) + i + 1
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47 }
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48 fmt.Fprintf(stmt, ft.format, indices...)
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49 *args = append(*args, (*ft).args...)
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50 }
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51
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52 func buildFilterTerm(format string, args ...interface{}) *filterTerm {
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53 return &filterTerm{format: format, args: args}
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54 }
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55
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56 func (fa filterAnd) serialize(stmt *strings.Builder, args *[]interface{}) {
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57 for i, node := range fa {
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58 if i > 0 {
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59 stmt.WriteString(" AND ")
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60 }
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61 stmt.WriteByte('(')
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62 node.serialize(stmt, args)
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63 stmt.WriteByte(')')
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64 }
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65 }
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66
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67 func (fo filterOr) serialize(stmt *strings.Builder, args *[]interface{}) {
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68 for i, node := range fo {
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69 if i > 0 {
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70 stmt.WriteString(" OR ")
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71 }
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72 stmt.WriteByte('(')
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73 node.serialize(stmt, args)
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74 stmt.WriteByte(')')
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75 }
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76 }
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77
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78 func (fn *filterNot) serialize(stmt *strings.Builder, args *[]interface{}) {
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79 stmt.WriteString("NOT (")
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80 fn.filterNode.serialize(stmt, args)
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81 stmt.WriteByte(')')
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82 }
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83
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84 func toInt8Array(txt string) *pgtype.Int8Array {
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85 parts := strings.Split(txt, ",")
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86 var ints []int64
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87 for _, part := range parts {
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88 part = strings.TrimSpace(part)
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89 v, err := strconv.ParseInt(part, 10, 64)
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90 if err != nil {
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91 continue
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92 }
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93 ints = append(ints, v)
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94 }
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95 var ia pgtype.Int8Array
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96 if err := ia.Set(ints); err != nil {
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97 log.Printf("warn: %v\n", err)
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98 return nil
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99 }
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100 return &ia
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101 }
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102
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103 func sliceToTextArray(s []string) *pgtype.TextArray {
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104 if len(s) == 0 {
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105 return nil
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106 }
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107 var ta pgtype.TextArray
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108 if err := ta.Set(s); err != nil {
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109 log.Printf("warn: %v\n", err)
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110 return nil
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111 }
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112 return &ta
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113 }
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114
3217
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115 func toTextArray(txt string, allowed []string) *pgtype.TextArray {
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116 parts := strings.Split(txt, ",")
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117 var accepted []string
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118 for _, part := range parts {
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119 if part = strings.ToLower(strings.TrimSpace(part)); len(part) == 0 {
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120 continue
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121 }
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122 for _, a := range allowed {
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123 if part == a {
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124 accepted = append(accepted, part)
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125 break
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126 }
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127 }
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128 }
3776
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129 return sliceToTextArray(accepted)
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130 }
3776
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131
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132 func splitUpper(s string) []string {
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133 s = strings.Map(func(r rune) rune {
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134 if ('A' <= r && r <= 'Z') || r == ',' {
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135 return r
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136 }
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137 return -1
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138 }, strings.ToUpper(s))
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139 return strings.FieldsFunc(s, func(r rune) bool { return r != ',' })
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140 }