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2 | daniel-mar | 1 | <?php |
2 | |||
3 | /* |
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4 | * OIDplus 2.0 |
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5 | * Copyright 2019 Daniel Marschall, ViaThinkSoft |
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6 | * |
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7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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8 | * you may not use this file except in compliance with the License. |
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9 | * You may obtain a copy of the License at |
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10 | * |
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11 | * http://www.apache.org/licenses/LICENSE-2.0 |
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12 | * |
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13 | * Unless required by applicable law or agreed to in writing, software |
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14 | * distributed under the License is distributed on an "AS IS" BASIS, |
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15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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16 | * See the License for the specific language governing permissions and |
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17 | * limitations under the License. |
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18 | */ |
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19 | |||
20 | class OIDplusGs1 extends OIDplusObject { |
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21 | private $number; |
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22 | |||
23 | public function __construct($number) { |
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16 | daniel-mar | 24 | // TODO: syntax checks |
2 | daniel-mar | 25 | $this->number = $number; |
26 | } |
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27 | |||
28 | public static function parse($node_id) { |
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29 | @list($namespace, $number) = explode(':', $node_id, 2); |
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30 | if ($namespace !== 'gs1') return false; |
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31 | return new self($number); |
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32 | } |
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33 | |||
34 | public static function objectTypeTitle() { |
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35 | return "GS1 Based IDs (GLN/GTIN/SSCC/...)"; |
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36 | } |
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37 | |||
38 | public static function objectTypeTitleShort() { |
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39 | return "GS1"; |
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40 | } |
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41 | |||
42 | public static function ns() { |
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43 | return 'gs1'; |
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44 | } |
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45 | |||
46 | public static function root() { |
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47 | return 'gs1:'; |
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48 | } |
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49 | |||
50 | public function isRoot() { |
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51 | return $this->number == ''; |
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52 | } |
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53 | |||
54 | public function nodeId() { |
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55 | return 'gs1:'.$this->number; |
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56 | } |
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57 | |||
58 | public function addString($str) { |
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59 | if (!preg_match('@^\\d+$@', $str, $m)) { |
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60 | throw new Exception('GS1 value needs to be numeric'); |
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61 | } |
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62 | |||
63 | return $this->nodeId() . $str; |
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64 | } |
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65 | |||
66 | public function crudShowId(OIDplusObject $parent) { |
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67 | return $this->chunkedNotation(false); |
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68 | } |
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69 | |||
70 | public function crudInsertPrefix() { |
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16 | daniel-mar | 71 | return $this->isRoot() ? '' : $this->chunkedNotation(false); |
2 | daniel-mar | 72 | } |
73 | |||
74 | public function jsTreeNodeName(OIDplusObject $parent = null) { |
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75 | if ($parent == null) return $this->objectTypeTitle(); |
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76 | return substr($this->nodeId(), strlen($parent->nodeId())); |
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77 | } |
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78 | |||
79 | public function defaultTitle() { |
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80 | return $this->number; |
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81 | } |
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82 | |||
16 | daniel-mar | 83 | public function isLeafNode() { |
84 | return !$this->isBaseOnly(); |
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85 | } |
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86 | |||
2 | daniel-mar | 87 | public function getContentPage(&$title, &$content) { |
88 | if ($this->isRoot()) { |
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89 | $title = OIDplusGs1::objectTypeTitle(); |
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90 | |||
91 | $res = OIDplus::db()->query("select * from ".OIDPLUS_TABLENAME_PREFIX."objects where parent = '".OIDplus::db()->real_escape_string(self::root())."'"); |
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92 | if (OIDplus::db()->num_rows($res) > 0) { |
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93 | $content = 'Please select an item in the tree view at the left to show its contents.'; |
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94 | } else { |
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95 | $content = 'Currently, no GS1 based numbers are registered in the system.'; |
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96 | } |
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97 | |||
16 | daniel-mar | 98 | if (!$this->isLeafNode()) { |
99 | if (OIDplus::authUtils()::isAdminLoggedIn()) { |
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100 | $content .= '<h2>Manage root objects</h2>'; |
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101 | } else { |
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102 | $content .= '<h2>Available objects</h2>'; |
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103 | } |
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104 | $content .= '%%CRUD%%'; |
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2 | daniel-mar | 105 | } |
106 | } else { |
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16 | daniel-mar | 107 | if ($this->isLeafNode()) { |
2 | daniel-mar | 108 | $chunked = $this->chunkedNotation(true); |
109 | $checkDigit = $this->checkDigit(); |
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110 | $content = '<h2>'.$chunked.' - <abbr title="check digit">'.$checkDigit.'</abbr></h2>'; |
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111 | $content .= '<p><a target="_blank" href="https://www.ean-search.org/?q='.htmlentities($this->fullNumber()).'">Lookup in ean-search.org</a></p>'; |
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112 | $content .= '<img src="plugins/objectTypes/'.basename(__DIR__).'/barcode.php?number='.urlencode($this->fullNumber()).'">'; |
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16 | daniel-mar | 113 | $content .= '<h2>Description</h2>%%DESC%%'; // TODO: add more meta information about the object type |
2 | daniel-mar | 114 | } else { |
16 | daniel-mar | 115 | $chunked = $this->chunkedNotation(true); |
116 | $content = '<h2>'.$chunked.'</h2>'; |
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117 | $content .= '<h2>Description</h2>%%DESC%%'; // TODO: add more meta information about the object type |
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118 | if ($this->userHasWriteRights()) { |
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119 | $content .= '<h2>Create or change subsequent objects</h2>'; |
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120 | } else { |
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121 | $content .= '<h2>Subsequent objects</h2>'; |
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122 | } |
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123 | $content .= '%%CRUD%%'; |
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2 | daniel-mar | 124 | } |
125 | } |
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126 | } |
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127 | |||
128 | # --- |
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129 | |||
130 | public function isBaseOnly() { |
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131 | return strlen($this->number) <= 7; |
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132 | } |
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133 | |||
134 | public function chunkedNotation($withAbbr=true) { |
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135 | $curid = 'gs1:'.$this->number; |
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136 | |||
137 | $res = OIDplus::db()->query("select id, title from ".OIDPLUS_TABLENAME_PREFIX."objects where id = '".OIDplus::db()->real_escape_string($curid)."'"); |
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138 | if (OIDplus::db()->num_rows($res) == 0) return $this->number(); |
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139 | |||
140 | $hints = array(); |
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141 | $lengths = array(strlen($curid)); |
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142 | while (OIDplus::db()->num_rows($res = OIDplus::db()->query("select parent, title from ".OIDPLUS_TABLENAME_PREFIX."objects where id = '".OIDplus::db()->real_escape_string($curid)."'")) > 0) { |
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143 | $row = OIDplus::db()->fetch_array($res); |
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144 | $curid = $row['parent']; |
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145 | $hints[] = $row['title']; |
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146 | $lengths[] = strlen($curid); |
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147 | } |
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148 | |||
149 | array_shift($lengths); |
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150 | $chunks = array(); |
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151 | |||
152 | $full = 'gs1:'.$this->number; |
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153 | foreach ($lengths as $len) { |
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154 | $chunks[] = substr($full, $len); |
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155 | $full = substr($full, 0, $len); |
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156 | } |
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157 | |||
158 | $hints = array_reverse($hints); |
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159 | $chunks = array_reverse($chunks); |
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160 | |||
161 | $full = array(); |
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162 | foreach ($chunks as $c) { |
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163 | $full[] = $withAbbr ? '<abbr title="'.htmlentities(array_shift($hints)).'">'.$c.'</abbr>' : $c; |
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164 | } |
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165 | return implode(' ', $full); |
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166 | } |
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167 | |||
168 | public function fullNumber() { |
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169 | return $this->number . $this->checkDigit(); |
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170 | } |
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171 | |||
172 | public function checkDigit() { |
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173 | $mul = 3; |
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174 | $sum = 0; |
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175 | for ($i=strlen($this->number)-1; $i>=0; $i--) { |
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176 | $sum += $this->number[$i] * $mul; |
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177 | $mul = $mul == 3 ? 1 : 3; |
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178 | } |
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179 | return 10 - ($sum % 10); |
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180 | } |
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181 | } |
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182 | |||
183 | OIDplusObject::$registeredObjectTypes[] = 'OIDplusGs1'; |
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184 |