Mercurial > gemma
annotate pkg/xlsx/templater.go @ 5343:bb6761abd81d extented-report
XLSX template: Copy column and row height explicitly.
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Fri, 18 Jun 2021 13:43:21 +0200 |
parents | 6c0f40676984 |
children | 7df6062a1371 |
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) 2021 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 xlsx |
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15 |
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16 import ( |
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17 "bufio" |
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18 "context" |
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19 "database/sql" |
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20 "errors" |
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21 "fmt" |
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22 "io" |
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23 "os" |
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24 "strings" |
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25 |
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26 "github.com/360EntSecGroup-Skylar/excelize/v2" |
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27 "gopkg.in/yaml.v2" |
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28 |
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29 "github.com/PaesslerAG/gval" |
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30 ) |
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31 |
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32 type Action struct { |
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33 Type string `yaml:"type"` |
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34 Actions []*Action `yaml:"actions"` |
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35 Location []string `yaml:"location"` |
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36 Source string `yaml:"source"` |
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37 Destination string `yaml:"destination"` |
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38 Statement string `yaml:"statement"` |
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39 Vars []string `yaml:"vars"` |
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40 Name string `yaml:"name"` |
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41 Expr string `yaml:"expr"` |
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42 } |
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43 |
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44 type frame struct { |
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45 res *sqlResult |
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46 index int |
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47 } |
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48 |
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49 type executor struct { |
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50 ctx context.Context |
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51 tx *sql.Tx |
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52 template *excelize.File |
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53 keep map[string]bool |
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54 expressions map[string]gval.Evaluable |
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55 sourceSheet string |
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56 destinationSheet string |
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57 frames []frame |
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58 } |
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59 |
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60 func ActionFromFile(filename string) (*Action, error) { |
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61 f, err := os.Open(filename) |
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62 if err != nil { |
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63 return nil, err |
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64 } |
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65 defer f.Close() |
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66 return ActionFromReader(f) |
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67 } |
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68 |
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69 func ActionFromReader(r io.Reader) (*Action, error) { |
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70 action := new(Action) |
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71 err := yaml.NewDecoder(bufio.NewReader(r)).Decode(action) |
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72 return action, err |
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73 } |
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74 |
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75 func (a *Action) Execute( |
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76 ctx context.Context, |
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77 tx *sql.Tx, |
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78 template *excelize.File, |
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79 ) error { |
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80 |
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81 e := executor{ |
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82 ctx: ctx, |
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83 tx: tx, |
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84 template: template, |
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85 keep: map[string]bool{}, |
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86 expressions: map[string]gval.Evaluable{}, |
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87 } |
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88 |
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89 oldSheets := template.GetSheetList() |
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90 |
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91 if err := e.dispatch(a); err != nil { |
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92 return err |
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93 } |
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94 |
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95 for _, sheet := range oldSheets { |
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96 if !e.keep[sheet] { |
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97 template.DeleteSheet(sheet) |
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98 } |
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99 } |
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100 return nil |
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101 } |
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102 |
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103 func (e *executor) dispatch(action *Action) error { |
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104 if len(action.Vars) > 0 { |
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105 e.pushVars(action.Vars) |
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106 defer e.popFrame() |
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107 } |
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108 switch action.Type { |
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109 case "sheet": |
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110 return e.sheet(action) |
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111 case "copy": |
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112 return e.copy(action) |
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113 case "select": |
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114 return e.sel(action) |
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115 case "assign": |
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116 return e.assign(action) |
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117 case "": |
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118 return e.actions(action) |
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119 } |
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120 return fmt.Errorf("unknown type '%s'", action.Type) |
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121 } |
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122 |
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123 func (e *executor) pushVars(vars []string) { |
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124 e.frames = append(e.frames, frame{ |
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125 res: &sqlResult{ |
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126 columns: vars, |
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127 rows: [][]interface{}{make([]interface{}, len(vars))}, |
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128 }, |
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129 }) |
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130 } |
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131 |
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132 func (e *executor) popFrame() { |
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133 n := len(e.frames) |
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134 e.frames[n-1].res = nil |
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135 e.frames = e.frames[:n-1] |
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136 } |
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137 |
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138 func (e *executor) assign(action *Action) error { |
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139 if action.Name == "" { |
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140 return errors.New("missing name in assign") |
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141 } |
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142 if action.Expr == "" { |
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143 return errors.New("missing expr in assign") |
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144 } |
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145 |
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146 for i := len(e.frames) - 1; i >= 0; i-- { |
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147 fr := &e.frames[i] |
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148 if idx := fr.res.find(action.Name); idx >= 0 { |
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149 f, err := e.expr(action.Expr) |
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150 if err != nil { |
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151 return err |
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152 } |
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153 value, err := f(e.ctx, e.vars()) |
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154 if err != nil { |
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155 return err |
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156 } |
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157 fr.res.rows[fr.index][idx] = value |
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158 break |
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159 } |
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160 } |
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161 return e.actions(action) |
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162 } |
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163 |
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164 func (e *executor) copy(action *Action) error { |
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165 if n := len(action.Location); !(n == 1 || n == 2) { |
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166 return fmt.Errorf("length location = %d (expect 1 or 2)", |
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167 len(action.Location)) |
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168 } |
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169 |
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170 vars := e.vars() |
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171 |
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172 var err error |
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173 expand := func(s string) string { |
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174 if err == nil { |
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175 s, err = e.expand(s, vars) |
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176 } |
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177 return s |
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178 } |
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179 split := func(s string) (int, int) { |
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180 var x, y int |
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|
181 if err == nil { |
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182 var cell string |
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183 if cell, y, err = excelize.SplitCellName(s); err == nil { |
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184 x, err = excelize.ColumnNameToNumber(cell) |
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185 } |
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|
186 } |
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|
187 return x, y |
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|
188 } |
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189 order := func(a, b int) (int, int) { |
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|
190 if a > b { |
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parents:
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|
191 return b, a |
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parents:
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|
192 } |
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parents:
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|
193 return a, b |
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parents:
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|
194 } |
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Added a report controller.
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195 |
5325
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196 var location []string |
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197 |
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198 if len(action.Location) == 1 { |
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199 location = []string{action.Location[0], action.Location[0]} |
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200 } else { |
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201 location = action.Location |
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202 } |
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203 |
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204 var destination string |
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205 |
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diff
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206 if action.Destination == "" { |
313bf3f3a8b1
XLSX templater: Simplify copy action.
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207 destination = location[0] |
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208 } else { |
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209 destination = action.Destination |
313bf3f3a8b1
XLSX templater: Simplify copy action.
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210 } |
313bf3f3a8b1
XLSX templater: Simplify copy action.
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211 |
5321
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212 var ( |
5325
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213 s1 = expand(location[0]) |
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214 s2 = expand(location[1]) |
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diff
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|
215 d1 = expand(destination) |
5321
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216 sx1, sy1 = split(s1) |
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|
217 sx2, sy2 = split(s2) |
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parents:
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|
218 dx1, dy1 = split(d1) |
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parents:
diff
changeset
|
219 ) |
0919946f624b
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parents:
diff
changeset
|
220 if err != nil { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
221 return err |
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
222 } |
0919946f624b
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parents:
diff
changeset
|
223 sx1, sx2 = order(sx1, sx2) |
0919946f624b
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parents:
diff
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|
224 sy1, sy1 = order(sy1, sy2) |
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parents:
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|
225 |
0919946f624b
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parents:
diff
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|
226 //log.Printf("%s/%s -> %s\n", sFrom, sTo, dTo) |
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|
227 |
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parents:
diff
changeset
|
228 for y, i := sy1, 0; y <= sy2; y, i = y+1, i+1 { |
0919946f624b
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|
229 for x, j := sx1, 0; x <= sx2; x, j = x+1, j+1 { |
0919946f624b
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parents:
diff
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|
230 src, err1 := excelize.CoordinatesToCellName(x, y) |
0919946f624b
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parents:
diff
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|
231 dst, err2 := excelize.CoordinatesToCellName(dx1+j, dy1+i) |
0919946f624b
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parents:
diff
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|
232 if err1 != nil || err2 != nil { |
0919946f624b
Added a report controller.
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parents:
diff
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|
233 continue |
0919946f624b
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parents:
diff
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|
234 } |
5343
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XLSX template: Copy column and row height explicitly.
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|
235 |
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XLSX template: Copy column and row height explicitly.
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diff
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|
236 sc, sr, err1 := excelize.SplitCellName(src) |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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diff
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|
237 dc, dr, err2 := excelize.SplitCellName(dst) |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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|
238 if err1 != nil || err2 != nil { |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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parents:
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|
239 continue |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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diff
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|
240 } |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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parents:
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diff
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|
241 cw, err1 := e.template.GetColWidth(e.sourceSheet, sc) |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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parents:
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diff
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|
242 rh, err1 := e.template.GetRowHeight(e.sourceSheet, sr) |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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parents:
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diff
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|
243 if err1 != nil || err2 != nil { |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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changeset
|
244 continue |
bb6761abd81d
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parents:
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diff
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|
245 } |
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|
246 |
bb6761abd81d
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|
247 if e.template.SetColWidth(e.destinationSheet, dc, dc, cw) != nil { |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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parents:
5333
diff
changeset
|
248 continue |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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parents:
5333
diff
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|
249 } |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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parents:
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diff
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|
250 |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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parents:
5333
diff
changeset
|
251 if e.template.SetRowHeight(e.destinationSheet, dr, rh) != nil { |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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parents:
5333
diff
changeset
|
252 continue |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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parents:
5333
diff
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|
253 } |
bb6761abd81d
XLSX template: Copy column and row height explicitly.
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parents:
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diff
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|
254 |
5321
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Added a report controller.
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parents:
diff
changeset
|
255 if s, err := e.template.GetCellStyle(e.sourceSheet, src); err == nil { |
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
256 e.template.SetCellStyle(e.destinationSheet, dst, dst, s) |
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Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
257 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
258 if s, err := e.template.GetCellFormula(e.sourceSheet, src); err == nil { |
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
259 e.template.SetCellFormula(e.destinationSheet, dst, s) |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
260 } |
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
261 if s, err := e.template.GetCellValue(e.sourceSheet, src); err == nil { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
262 if s, err = e.expand(s, vars); err == nil { |
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
263 e.template.SetCellStr(e.destinationSheet, dst, s) |
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Added a report controller.
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parents:
diff
changeset
|
264 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
265 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
266 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
267 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
268 |
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Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
269 return nil |
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Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
270 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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changeset
|
271 |
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Added a report controller.
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parents:
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changeset
|
272 func (e *executor) sel(action *Action) error { |
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changeset
|
273 vars := e.vars() |
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Added a report controller.
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parents:
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changeset
|
274 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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changeset
|
275 eval := func(x string) (interface{}, error) { |
0919946f624b
Added a report controller.
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changeset
|
276 f, err := e.expr(x) |
0919946f624b
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parents:
diff
changeset
|
277 if err != nil { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
278 return nil, err |
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Added a report controller.
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parents:
diff
changeset
|
279 } |
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280 return f(e.ctx, vars) |
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parents:
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|
281 } |
0919946f624b
Added a report controller.
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parents:
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|
282 |
5333
6c0f40676984
Run xlsx templating in a read-only transaction.
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parents:
5325
diff
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|
283 res, err := query(e.ctx, e.tx, action.Statement, eval) |
5321
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
284 if err != nil { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
285 return err |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
286 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
287 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
288 e.frames = append(e.frames, frame{res: res}) |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
289 defer e.popFrame() |
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
290 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
291 for i := range res.rows { |
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
292 e.frames[len(e.frames)-1].index = i |
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
293 if err := e.actions(action); err != nil { |
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
294 return err |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
295 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
296 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
297 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
298 return nil |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
299 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
300 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
301 func (e *executor) actions(action *Action) error { |
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
302 for _, a := range action.Actions { |
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
303 if err := e.dispatch(a); err != nil { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
304 return err |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
305 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
306 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
307 return nil |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
308 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
309 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
310 func (e *executor) sheet(action *Action) error { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
311 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
312 vars := e.vars() |
0919946f624b
Added a report controller.
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parents:
diff
changeset
|
313 source, err := e.expand(action.Source, vars) |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
314 if err != nil { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
315 return err |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
316 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
317 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
318 srcIdx := e.template.GetSheetIndex(source) |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
319 if srcIdx == -1 { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
320 return fmt.Errorf("sheet '%s' not found", source) |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
321 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
322 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
323 destination := action.Destination |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
324 if destination == "" { // same as source |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
325 e.keep[source] = true |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
326 destination = source |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
327 } else { // new sheet |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
328 destination, err = e.expand(destination, vars) |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
329 if err != nil { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
330 return err |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
331 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
332 dstIdx := e.template.NewSheet(destination) |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
333 if len(action.Actions) == 0 { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
334 // Only copy if there are no explicit instructions. |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
335 if err := e.template.CopySheet(srcIdx, dstIdx); err != nil { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
336 return err |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
337 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
338 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
339 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
340 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
341 if len(action.Actions) > 0 { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
342 pSrc, pDst := e.sourceSheet, e.destinationSheet |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
343 defer func() { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
344 e.sourceSheet, e.destinationSheet = pSrc, pDst |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
345 }() |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
346 e.sourceSheet, e.destinationSheet = source, destination |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
347 return e.actions(action) |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
348 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
349 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
350 // Simple filling |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
351 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
352 // "{{" only as a quick filter |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
353 result, err := e.template.SearchSheet(destination, "{{", true) |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
354 if err != nil { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
355 return err |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
356 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
357 for _, axis := range result { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
358 value, err := e.template.GetCellValue(destination, axis) |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
359 if err != nil { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
360 return err |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
361 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
362 value, err = e.expand(value, vars) |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
363 if err != nil { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
364 return err |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
365 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
366 if err := e.template.SetCellStr(destination, axis, value); err != nil { |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
367 return err |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
368 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
369 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
370 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
371 return nil |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
372 } |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
373 |
0919946f624b
Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
374 func (e *executor) expr(x string) (gval.Evaluable, error) { |
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Added a report controller.
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375 if f := e.expressions[x]; f != nil { |
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376 return f, nil |
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377 } |
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378 f, err := gval.Full().NewEvaluable(x) |
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379 if err != nil { |
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380 return nil, err |
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381 } |
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382 e.expressions[x] = f |
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383 return f, nil |
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384 } |
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385 |
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386 func (e *executor) vars() map[string]interface{} { |
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387 vars := map[string]interface{}{} |
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388 if len(e.frames) > 0 { |
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389 vars["row_number"] = e.frames[len(e.frames)-1].index |
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390 } |
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391 for i := len(e.frames) - 1; i >= 0; i-- { |
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392 fr := &e.frames[i] |
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393 for j, n := range fr.res.columns { |
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394 if _, found := vars[n]; !found { |
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395 vars[n] = fr.res.rows[fr.index][j] |
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396 } |
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397 } |
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398 } |
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399 return vars |
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400 } |
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401 |
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402 func (e *executor) expand(str string, vars map[string]interface{}) (string, error) { |
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403 |
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404 var err error |
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405 |
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406 replace := func(s string) string { |
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407 if err != nil { |
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408 return "" |
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409 } |
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410 var eval gval.Evaluable |
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411 if eval, err = e.expr(strings.TrimSpace(s)); err != nil { |
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412 return "" |
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413 } |
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414 s, err = eval.EvalString(e.ctx, vars) |
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415 return s |
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416 } |
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417 |
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418 str = handlebars(str, replace) |
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419 return str, err |
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420 } |