Mercurial > gemma

annotate pkg/controllers/printtemplates.go @ 2161:7444b75d5497

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Print templates endpoints: Get rid of useless models.PrintTemplateIn model.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 08 Feb 2019 12:56:33 +0100
parents 7bd485bf85e8
children 0627565fb4d2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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) 2018 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 "bytes"
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18 "database/sql"
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19 "encoding/json"
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20 "net/http"
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21 "time"
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22
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23 "github.com/gorilla/mux"
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24 "github.com/jackc/pgx/pgtype"
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25
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26 "gemma.intevation.de/gemma/pkg/models"
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27 )
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28
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29 const maxPrintTemplateSize = 5 * 1024 * 1024
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30
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31 const (
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32 listPrintTemplatesSQL = `
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33 SELECT
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34 template_name,
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35 date_info
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36 FROM
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37 users.templates
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38 ORDER BY date_info DESC`
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39
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40 hasPrintTemplateSQL = `
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41 SELECT true FROM users.templates WHERE name = $1`
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42
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43 deletePrintTemplateSQL = `
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44 DELETE FROM users.templates WHERE name = $1`
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45
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46 selectPrintTemplateSQL = `
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47 SELECT template_data FROM users.templates WHERE name = $1`
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48
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49 insertPrintTemplateSQL = `
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50 INSERT INTO users.templates (template_name, template_data)
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51 VALUES ($1, $2)`
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52 )
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53
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54 func listPrintTemplates(
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55 _ interface{},
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56 req *http.Request,
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57 conn *sql.Conn,
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58 ) (jr JSONResult, err error) {
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59
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60 type template struct {
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61 Name string `json:"name"`
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62 Time models.Time `json:"time"`
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63 }
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64
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65 var rows *sql.Rows
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66 if rows, err = conn.QueryContext(req.Context(), listPrintTemplatesSQL); err != nil {
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67 return
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68 }
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69 defer rows.Close()
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70
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71 templates := []*template{}
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72
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73 for rows.Next() {
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74 var tmpl template
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75 var w time.Time
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76 if err = rows.Scan(&tmpl.Name, &w); err != nil {
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77 return
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78 }
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79 tmpl.Time = models.Time{w}
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80 templates = append(templates, &tmpl)
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81 }
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82
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83 jr = JSONResult{Result: templates}
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84 return
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85 }
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86
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87 func fetchPrintTemplate(
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88 _ interface{},
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89 req *http.Request,
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90 conn *sql.Conn,
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91 ) (jr JSONResult, err error) {
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92
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93 ctx := req.Context()
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94 name := mux.Vars(req)["name"]
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95
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96 var data pgtype.Bytea
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97 err = conn.QueryRowContext(ctx, selectPrintTemplateSQL, name).Scan(&data)
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98
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99 switch {
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100 case err == sql.ErrNoRows:
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101 err = JSONError{
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102 Code: http.StatusNotFound,
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103 Message: "No such template found",
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104 }
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105 return
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106 case err != nil:
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107 return
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108 case data.Status != pgtype.Present:
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109 err = JSONError{
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110 Code: http.StatusInternalServerError,
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111 Message: "Unexpected return value from database query",
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112 }
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113 return
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114 }
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115 jr = JSONResult{Result: bytes.NewReader(data.Bytes)}
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116 return
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117 }
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118
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119 func createPrintTemplate(
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120 input interface{},
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121 req *http.Request,
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122 conn *sql.Conn,
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parents:
diff changeset
123 ) (jr JSONResult, err error) {
2158
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diff changeset
124
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125 ctx := req.Context()
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126 name := mux.Vars(req)["name"]
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127 in := input.(*json.RawMessage)
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128
2161
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129 if name == "" {
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130 err = JSONError{
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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131 Code: http.StatusBadRequest,
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132 Message: "Template must have a none empty name",
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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133 }
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134 return
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
135 }
2161
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136 if len(*in) == 0 {
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parents: 2155
diff changeset
137 err = JSONError{
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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138 Code: http.StatusBadRequest,
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139 Message: "Template must have a none empty template",
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parents: 2155
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140 }
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parents: 2155
diff changeset
141 return
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
142 }
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143 var tx *sql.Tx
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144 if tx, err = conn.BeginTx(ctx, nil); err != nil {
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parents: 2155
diff changeset
145 return
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
146 }
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147 defer tx.Rollback()
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148
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149 var dummy bool
2161
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150 err = tx.QueryRowContext(ctx, hasPrintTemplateSQL, name).Scan(&dummy)
2158
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151
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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152 switch {
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153 case err == sql.ErrNoRows:
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154 // This is fine.
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diff changeset
155 case err != nil:
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
156 return
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
157 default:
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parents: 2155
diff changeset
158 err = JSONError{
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
159 Code: http.StatusBadRequest,
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parents: 2155
diff changeset
160 Message: "A template with this name already exists",
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2155
diff changeset
161 }
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
162 return
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
163 }
2161
7444b75d5497 Print templates endpoints: Get rid of useless models.PrintTemplateIn model.
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diff changeset
164 data := pgtype.Bytea{Bytes: *in, Status: pgtype.Present}
2158
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
165
2161
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parents: 2158
diff changeset
166 if _, err = tx.ExecContext(ctx, insertPrintTemplateSQL, name, &data); err != nil {
2158
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
167 return
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2155
diff changeset
168 }
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2155
diff changeset
169
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2155
diff changeset
170 if err = tx.Commit(); err != nil {
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
171 return
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2155
diff changeset
172 }
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
173 jr = JSONResult{
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
174 Code: http.StatusCreated,
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
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parents: 2155
diff changeset
175 Result: map[string]string{
2161
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diff changeset
176 "created": name,
2158
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parents: 2155
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177 },
7bd485bf85e8 Print templates: Implemented /api/templates/print POST to create new templates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2155
diff changeset
178 }
2148
4057a1f15174 Print templates: Forget to add controller file.
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parents:
diff changeset
179 return
4057a1f15174 Print templates: Forget to add controller file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
180 }
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parents:
diff changeset
181
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parents:
diff changeset
182 func deletePrintTemplate(
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parents:
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183 _ interface{},
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parents:
diff changeset
184 req *http.Request,
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parents:
diff changeset
185 conn *sql.Conn,
4057a1f15174 Print templates: Forget to add controller file.
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parents:
diff changeset
186 ) (jr JSONResult, err error) {
2153
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
187
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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diff changeset
188 ctx := req.Context()
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
189 name := mux.Vars(req)["name"]
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
190
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
191 var tx *sql.Tx
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
192 if tx, err = conn.BeginTx(ctx, nil); err != nil {
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
193 return
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
194 }
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
195 defer tx.Rollback()
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
196
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
197 var dummy bool
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
198 err = tx.QueryRowContext(ctx, hasPrintTemplateSQL, name).Scan(&dummy)
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
199
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
200 switch {
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
201 case err == sql.ErrNoRows:
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
202 err = JSONError{
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
203 Code: http.StatusNotFound,
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
204 Message: "No such template found",
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
205 }
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
206 return
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
207 case err != nil:
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
208 return
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
209 case !dummy:
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
210 err = JSONError{
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
211 Code: http.StatusInternalServerError,
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
212 Message: "Unexpected return value from database query",
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
213 }
2155
51c5aead78c0 Print templates: Implemented /api/templates/print/{name} GET.
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parents: 2153
diff changeset
214 return
2153
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
215 }
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
216
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
217 if _, err = tx.ExecContext(ctx, deletePrintTemplateSQL, name); err != nil {
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
218 return
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
219 }
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
220
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
221 if err = tx.Commit(); err != nil {
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
222 return
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
223 }
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
224
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
225 jr = JSONResult{
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
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parents: 2150
diff changeset
226 Result: map[string]string{
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
227 "deleted": name,
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
228 },
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
229 }
cdd68f555ad7 Print templates: Implemented /api/templates/print/{name} DELETE.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2150
diff changeset
230
2148
4057a1f15174 Print templates: Forget to add controller file.
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parents:
diff changeset
231 return
4057a1f15174 Print templates: Forget to add controller file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
232 }
4057a1f15174 Print templates: Forget to add controller file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
233
4057a1f15174 Print templates: Forget to add controller file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
234 func updatePrintTemplate(
4057a1f15174 Print templates: Forget to add controller file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
235 _ interface{},
4057a1f15174 Print templates: Forget to add controller file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
236 req *http.Request,
4057a1f15174 Print templates: Forget to add controller file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
237 conn *sql.Conn,
4057a1f15174 Print templates: Forget to add controller file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
238 ) (jr JSONResult, err error) {
4057a1f15174 Print templates: Forget to add controller file.
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parents:
diff changeset
239 // TODO: Implement me!
4057a1f15174 Print templates: Forget to add controller file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
240 return
4057a1f15174 Print templates: Forget to add controller file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
241 }