1 | <?php |
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2 | # -- BEGIN LICENSE BLOCK --------------------------------------- |
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3 | # |
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4 | # This file is part of Dotclear 2. |
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5 | # |
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6 | # Copyright (c) 2003-2011 Olivier Meunier & Association Dotclear |
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7 | # Licensed under the GPL version 2.0 license. |
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8 | # See LICENSE file or |
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9 | # http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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10 | # |
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11 | # -- END LICENSE BLOCK ----------------------------------------- |
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12 | if (!defined('DC_RC_PATH')) { return; } |
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13 | |
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14 | /** |
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15 | @ingroup DC_CORE |
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16 | @nosubgrouping |
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17 | @brief Dotclear metadata class. |
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18 | |
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19 | Dotclear metadata class instance is provided by dcCore $meta property. |
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20 | */ |
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21 | class dcMeta |
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22 | { |
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23 | private $core; ///< <b>dcCore</b> dcCore instance |
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24 | private $con; ///< <b>connection</b> Database connection object |
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25 | private $table; ///< <b>string</b> Media table name |
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26 | |
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27 | /** |
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28 | Object constructor. |
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29 | |
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30 | @param core <b>dcCore</b> dcCore instance |
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31 | */ |
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32 | public function __construct($core) |
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33 | { |
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34 | $this->core =& $core; |
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35 | $this->con =& $this->core->con; |
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36 | $this->table = $this->core->prefix.'meta'; |
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37 | } |
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38 | |
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39 | /** |
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40 | Splits up comma-separated values into an array of |
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41 | unique, URL-proof metadata values. |
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42 | |
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43 | @param str <b>string</b> Comma-separated metadata. |
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44 | |
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45 | @return <b>Array</b> The array of sanitized metadata |
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46 | */ |
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47 | public function splitMetaValues($str) |
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48 | { |
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49 | $res = array(); |
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50 | foreach (explode(',',$str) as $i => $tag) |
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51 | { |
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52 | $tag = trim($tag); |
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53 | $tag = self::sanitizeMetaID($tag); |
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54 | |
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55 | if ($tag != false) { |
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56 | $res[$i] = $tag; |
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57 | } |
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58 | } |
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59 | |
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60 | return array_unique($res); |
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61 | } |
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62 | |
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63 | /** |
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64 | Make a metadata ID URL-proof. |
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65 | |
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66 | @param str <b>string</b> the metadata ID. |
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67 | |
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68 | @return <b>string</b> The sanitized metadata |
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69 | */ |
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70 | public static function sanitizeMetaID($str) |
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71 | { |
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72 | return text::tidyURL($str,false,true); |
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73 | } |
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74 | |
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75 | /** |
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76 | Converts serialized metadata (for instance in dc_post post_meta) |
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77 | into a meta array. |
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78 | |
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79 | @param str <b>string</b> the serialized metadata. |
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80 | |
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81 | @return <b>Array</b> the resulting array of post meta |
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82 | */ |
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83 | public function getMetaArray($str) |
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84 | { |
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85 | $meta = @unserialize($str); |
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86 | |
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87 | if (!is_array($meta)) { |
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88 | return array(); |
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89 | } |
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90 | |
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91 | return $meta; |
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92 | } |
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93 | |
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94 | /** |
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95 | Converts serialized metadata (for instance in dc_post post_meta) |
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96 | into a comma-separated meta list for a given type. |
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97 | |
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98 | @param str <b>string</b> the serialized metadata. |
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99 | @param type <b>string</b> meta type to retrieve metaIDs from. |
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100 | |
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101 | @return <b>string</b> the comma-separated list of meta |
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102 | */ |
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103 | public function getMetaStr($str,$type) |
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104 | { |
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105 | $meta = $this->getMetaArray($str); |
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106 | |
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107 | if (!isset($meta[$type])) { |
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108 | return ''; |
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109 | } |
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110 | |
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111 | return implode(', ',$meta[$type]); |
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112 | } |
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113 | |
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114 | /** |
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115 | Converts serialized metadata (for instance in dc_post post_meta) |
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116 | into a "fetchable" metadata record. |
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117 | |
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118 | @param str <b>string</b> the serialized metadata. |
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119 | @param type <b>string</b> meta type to retrieve metaIDs from. |
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120 | |
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121 | @return <b>record</b> the meta recordset |
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122 | */ |
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123 | public function getMetaRecordset($str,$type) |
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124 | { |
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125 | $meta = $this->getMetaArray($str); |
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126 | $data = array(); |
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127 | |
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128 | if (isset($meta[$type])) |
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129 | { |
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130 | foreach ($meta[$type] as $v) |
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131 | { |
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132 | $data[] = array( |
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133 | 'meta_id' => $v, |
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134 | 'meta_type' => $type, |
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135 | 'meta_id_lower' => mb_strtolower($v), |
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136 | 'count' => 0, |
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137 | 'percent' => 0, |
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138 | 'roundpercent' => 0 |
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139 | ); |
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140 | } |
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141 | } |
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142 | |
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143 | return staticRecord::newFromArray($data); |
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144 | } |
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145 | |
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146 | /** |
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147 | @deprecated since version 2.2 : $core->meta is always defined |
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148 | @see getMetaRecordset |
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149 | static version of getMetaRecordset |
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150 | */ |
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151 | public static function getMetaRecord($core,$str,$type) |
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152 | { |
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153 | $meta = new self($core); |
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154 | return $meta->getMetaRecordset($str,$type); |
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155 | } |
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156 | |
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157 | /** |
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158 | Checks whether the current user is allowed to change post meta |
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159 | An exception is thrown if user is not allowed. |
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160 | |
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161 | @param post_id <b>string</b> the post_id to check. |
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162 | */ |
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163 | private function checkPermissionsOnPost($post_id) |
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164 | { |
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165 | $post_id = (integer) $post_id; |
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166 | |
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167 | if (!$this->core->auth->check('usage,contentadmin',$this->core->blog->id)) { |
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168 | throw new Exception(__('You are not allowed to change this entry status')); |
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169 | } |
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170 | |
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171 | #�If user can only publish, we need to check the post's owner |
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172 | if (!$this->core->auth->check('contentadmin',$this->core->blog->id)) |
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173 | { |
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174 | $strReq = 'SELECT post_id '. |
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175 | 'FROM '.$this->core->prefix.'post '. |
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176 | 'WHERE post_id = '.$post_id.' '. |
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177 | "AND user_id = '".$this->con->escape($this->core->auth->userID())."' "; |
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178 | |
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179 | $rs = $this->con->select($strReq); |
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180 | |
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181 | if ($rs->isEmpty()) { |
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182 | throw new Exception(__('You are not allowed to change this entry status')); |
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183 | } |
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184 | } |
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185 | } |
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186 | |
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187 | /** |
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188 | Updates serialized post_meta information with dc_meta table information. |
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189 | |
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190 | @param post_id <b>string</b> the post_id to update. |
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191 | */ |
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192 | private function updatePostMeta($post_id) |
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193 | { |
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194 | $post_id = (integer) $post_id; |
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195 | |
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196 | $strReq = 'SELECT meta_id, meta_type '. |
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197 | 'FROM '.$this->table.' '. |
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198 | 'WHERE post_id = '.$post_id.' '; |
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199 | |
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200 | $rsmeta = $this->con->select($strReq); |
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201 | |
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202 | $meta = array(); |
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203 | foreach ($rsmeta as $r) { |
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204 | $meta[$r->meta_type][] = $r->meta_id; |
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205 | } |
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206 | |
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207 | $post_meta = serialize($meta); |
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208 | |
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209 | $cur = $this->con->openCursor($this->core->prefix.'post'); |
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210 | $cur->post_meta = $post_meta; |
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211 | |
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212 | $cur->update('WHERE post_id = '.$post_id); |
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213 | $this->core->blog->triggerBlog(); |
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214 | } |
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215 | |
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216 | /** |
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217 | Retrieves posts corresponding to given meta criteria. |
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218 | <b>$params</b> is an array taking the following optional parameters: |
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219 | - meta_id : get posts having meta id |
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220 | - meta_type : get posts having meta type |
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221 | |
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222 | @param params <b>array</b> Parameters |
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223 | @param count_only <b>boolean</b> Only counts results |
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224 | |
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225 | @return <b>record</b> the resulting posts record |
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226 | */ |
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227 | public function getPostsByMeta($params=array(),$count_only=false) |
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228 | { |
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229 | if (!isset($params['meta_id'])) { |
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230 | return null; |
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231 | } |
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232 | |
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233 | $params['from'] = ', '.$this->table.' META '; |
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234 | $params['sql'] = 'AND META.post_id = P.post_id '; |
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235 | |
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236 | $params['sql'] .= "AND META.meta_id = '".$this->con->escape($params['meta_id'])."' "; |
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237 | |
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238 | if (!empty($params['meta_type'])) { |
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239 | $params['sql'] .= "AND META.meta_type = '".$this->con->escape($params['meta_type'])."' "; |
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240 | unset($params['meta_type']); |
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241 | } |
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242 | |
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243 | unset($params['meta_id']); |
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244 | |
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245 | return $this->core->blog->getPosts($params,$count_only); |
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246 | } |
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247 | |
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248 | /** |
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249 | @deprecated since 2.2. Use getMetadata and computeMetaStats instead. |
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250 | Generic-purpose metadata retrieval : gets metadatas according to given |
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251 | criteria. Metadata get enriched with stastistics columns (only relevant |
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252 | if limit parameter is not set). Metadata are sorted by post count |
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253 | descending |
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254 | |
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255 | @param type <b>string</b> if not null, get metas having the given type |
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256 | @param limit <b>string</b> if not null, number of max fetched metas |
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257 | @param meta_id <b>string</b> if not null, get metas having the given id |
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258 | @param post_id <b>string</b> if not null, get metas for the given post id |
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259 | |
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260 | @return <b>record</b> the meta recordset |
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261 | */ |
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262 | public function getMeta($type=null,$limit=null,$meta_id=null,$post_id=null) { |
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263 | $params = array(); |
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264 | |
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265 | if ($type != null) |
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266 | $params['meta_type'] = $type; |
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267 | if ($limit != null) |
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268 | $params['limit'] = $limit; |
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269 | if ($meta_id != null) |
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270 | $params['meta_id'] = $meta_id; |
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271 | if ($meta_id != null) |
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272 | $params['post_id'] = $post_id; |
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273 | $meta = $this->getMetadata($params, false); |
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274 | return $this->computeMetaStats($meta); |
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275 | } |
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276 | |
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277 | /** |
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278 | Generic-purpose metadata retrieval : gets metadatas according to given |
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279 | criteria. <b>$params</b> is an array taking the following |
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280 | optionnal parameters: |
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281 | |
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282 | - type: get metas having the given type |
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283 | - meta_id: if not null, get metas having the given id |
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284 | - post_id: get metas for the given post id |
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285 | - limit: number of max fetched metas |
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286 | - order: results order (default : posts count DESC) |
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287 | |
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288 | @param params <b>array</b> Parameters |
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289 | @param count_only <b>boolean</b> Only counts results |
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290 | |
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291 | @return <b>record</b> the resulting comments record |
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292 | */ |
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293 | public function getMetadata($params=array(), $count_only=false) |
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294 | { |
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295 | if ($count_only) { |
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296 | $strReq = 'SELECT count(distinct M.meta_id) '; |
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297 | } else { |
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298 | $strReq = 'SELECT M.meta_id, M.meta_type, COUNT(M.post_id) as count '; |
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299 | } |
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300 | |
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301 | $strReq .= |
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302 | 'FROM '.$this->table.' M LEFT JOIN '.$this->core->prefix.'post P '. |
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303 | 'ON M.post_id = P.post_id '. |
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304 | "WHERE P.blog_id = '".$this->con->escape($this->core->blog->id)."' "; |
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305 | |
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306 | if (isset($params['meta_type'])) { |
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307 | $strReq .= " AND meta_type = '".$this->con->escape($params['meta_type'])."' "; |
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308 | } |
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309 | |
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310 | if (isset($params['meta_id'])) { |
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311 | $strReq .= " AND meta_id = '".$this->con->escape($params['meta_id'])."' "; |
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312 | } |
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313 | |
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314 | if (isset($params['post_id'])) { |
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315 | $strReq .= ' AND P.post_id '.$this->con->in($params['post_id']).' '; |
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316 | } |
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317 | |
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318 | if (!$this->core->auth->check('contentadmin',$this->core->blog->id)) { |
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319 | $strReq .= 'AND ((post_status = 1) '; |
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320 | |
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321 | if ($this->core->auth->userID()) { |
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322 | $strReq .= "OR P.user_id = '".$this->con->escape($this->core->auth->userID())."')"; |
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323 | } else { |
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324 | $strReq .= ') '; |
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325 | } |
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326 | } |
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327 | |
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328 | if (!$count_only) { |
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329 | if (!isset($params['order'])) { |
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330 | $params['order'] = 'count DESC'; |
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331 | } |
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332 | |
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333 | $strReq .= |
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334 | 'GROUP BY meta_id,meta_type,P.blog_id '. |
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335 | 'ORDER BY '.$params['order']; |
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336 | |
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337 | if (isset($params['limit'])) { |
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338 | $strReq .= $this->con->limit($params['limit']); |
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339 | } |
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340 | } |
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341 | |
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342 | $meta = $this->con->select($strReq); |
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343 | return $meta; |
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344 | } |
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345 | |
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346 | /** |
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347 | Computes statistics from a metadata recordset. |
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348 | Each record gets enriched with lowercase name, percent and roundpercent columns |
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349 | |
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350 | @param rs <b>record</b> recordset to enrich |
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351 | |
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352 | @return <b>record</b> the enriched recordset |
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353 | */ |
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354 | public function computeMetaStats($meta) { |
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355 | $meta_static = $meta->toStatic(); |
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356 | |
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357 | $max = array(); |
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358 | foreach ($meta_static as $m) |
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359 | { |
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360 | $type = $m->meta_type; |
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361 | if (!isset($max[$type])) { |
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362 | $max[$type] = $m->count; |
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363 | } else { |
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364 | if ($m->count > $max[$type]) { |
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365 | $max[$type] = $m->count; |
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366 | } |
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367 | } |
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368 | } |
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369 | |
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370 | foreach ($meta_static as $m) |
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371 | { |
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372 | $m->set('meta_id_lower',mb_strtolower($m->meta_id)); |
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373 | |
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374 | $count = $m->count; |
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375 | $percent = ((integer) $m->count) * 100 / $max[$m->meta_type]; |
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376 | |
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377 | $m->set('percent',(integer) round($percent)); |
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378 | $m->set('roundpercent',round($percent/10)*10); |
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379 | } |
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380 | |
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381 | return $meta_static; |
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382 | } |
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383 | |
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384 | /** |
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385 | Adds a metadata to a post. |
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386 | |
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387 | @param post_id <b>integer</b> the post id |
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388 | @param type <b>string</b> meta type |
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389 | @param value <b>integer</b> meta value |
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390 | */ |
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391 | public function setPostMeta($post_id,$type,$value) |
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392 | { |
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393 | $this->checkPermissionsOnPost($post_id); |
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394 | |
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395 | $value = trim($value); |
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396 | if ($value === false) { return; } |
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397 | |
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398 | $cur = $this->con->openCursor($this->table); |
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399 | |
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400 | $cur->post_id = (integer) $post_id; |
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401 | $cur->meta_id = (string) $value; |
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402 | $cur->meta_type = (string) $type; |
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403 | |
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404 | $cur->insert(); |
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405 | $this->updatePostMeta((integer) $post_id); |
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406 | } |
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407 | |
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408 | /** |
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409 | Removes metadata from a post. |
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410 | |
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411 | @param post_id <b>integer</b> the post id |
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412 | @param type <b>string</b> meta type (if null, delete all types) |
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413 | @param value <b>integer</b> meta value (if null, delete all values) |
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414 | */ |
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415 | public function delPostMeta($post_id,$type=null,$meta_id=null) |
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416 | { |
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417 | $post_id = (integer) $post_id; |
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418 | |
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419 | $this->checkPermissionsOnPost($post_id); |
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420 | |
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421 | $strReq = 'DELETE FROM '.$this->table.' '. |
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422 | 'WHERE post_id = '.$post_id; |
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423 | |
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424 | if ($type !== null) { |
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425 | $strReq .= " AND meta_type = '".$this->con->escape($type)."' "; |
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426 | } |
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427 | |
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428 | if ($meta_id !== null) { |
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429 | $strReq .= " AND meta_id = '".$this->con->escape($meta_id)."' "; |
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430 | } |
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431 | |
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432 | $this->con->execute($strReq); |
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433 | $this->updatePostMeta((integer) $post_id); |
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434 | } |
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435 | |
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436 | /** |
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437 | Mass updates metadata for a given post_type. |
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438 | |
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439 | @param meta_id <b>integer</b> old value |
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440 | @param new_meta <b>integer</b> new value |
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441 | @param type <b>string</b> meta type (if null, select all types) |
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442 | @param post_type <b>integer</b> impacted post_type (if null, select all types) |
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443 | @return <b>boolean</b> true if at least 1 post has been impacted |
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444 | */ |
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445 | public function updateMeta($meta_id,$new_meta_id,$type=null,$post_type=null) |
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446 | { |
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447 | $new_meta_id = self::sanitizeMetaID($new_meta_id); |
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448 | |
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449 | if ($new_meta_id == $meta_id) { |
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450 | return true; |
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451 | } |
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452 | |
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453 | $getReq = 'SELECT M.post_id '. |
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454 | 'FROM '.$this->table.' M, '.$this->core->prefix.'post P '. |
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455 | 'WHERE P.post_id = M.post_id '. |
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456 | "AND P.blog_id = '".$this->con->escape($this->core->blog->id)."' ". |
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457 | "AND meta_id = '%s' "; |
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458 | |
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459 | if (!$this->core->auth->check('contentadmin',$this->core->blog->id)) { |
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460 | $getReq .= "AND P.user_id = '".$this->con->escape($this->core->auth->userID())."' "; |
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461 | } |
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462 | if ($post_type !== null) { |
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463 | $getReq .= "AND P.post_type = '".$this->con->escape($post_type)."' "; |
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464 | } |
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465 | |
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466 | $delReq = 'DELETE FROM '.$this->table.' '. |
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467 | 'WHERE post_id IN (%s) '. |
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468 | "AND meta_id = '%s' "; |
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469 | |
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470 | $updReq = 'UPDATE '.$this->table.' '. |
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471 | "SET meta_id = '%s' ". |
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472 | 'WHERE post_id IN (%s) '. |
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473 | "AND meta_id = '%s' "; |
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474 | |
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475 | if ($type !== null) { |
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476 | $plus = " AND meta_type = '%s' "; |
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477 | $getReq .= $plus; |
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478 | $delReq .= $plus; |
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479 | $updReq .= $plus; |
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480 | } |
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481 | |
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482 | $to_update = $to_remove = array(); |
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483 | |
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484 | $meta = $this->con->select(sprintf($getReq,$this->con->escape($meta_id), |
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485 | $this->con->escape($type))); |
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486 | |
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487 | foreach ($meta as $m) { |
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488 | $to_update[] = $m->post_id; |
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489 | } |
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490 | |
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491 | if (empty($to_update)) { |
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492 | return false; |
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493 | } |
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494 | |
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495 | $meta = $this->con->select(sprintf($getReq,$new_meta_id,$type)); |
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496 | foreach ($meta as $m) { |
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497 | if (in_array($m->post_id,$to_update)) { |
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498 | $to_remove[] = $m->post_id; |
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499 | unset($to_update[array_search($m->post_id,$to_update)]); |
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500 | } |
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501 | } |
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502 | |
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503 | # Delete duplicate meta |
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504 | if (!empty($to_remove)) |
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505 | { |
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506 | $this->con->execute(sprintf($delReq,implode(',',$to_remove), |
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507 | $this->con->escape($meta_id), |
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508 | $this->con->escape($type))); |
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509 | |
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510 | foreach ($to_remove as $post_id) { |
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511 | $this->updatePostMeta($post_id); |
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512 | } |
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513 | } |
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514 | |
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515 | # Update meta |
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516 | if (!empty($to_update)) |
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517 | { |
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518 | $this->con->execute(sprintf($updReq,$this->con->escape($new_meta_id), |
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519 | implode(',',$to_update), |
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520 | $this->con->escape($meta_id), |
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521 | $this->con->escape($type))); |
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522 | |
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523 | foreach ($to_update as $post_id) { |
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524 | $this->updatePostMeta($post_id); |
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525 | } |
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526 | } |
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527 | |
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528 | return true; |
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529 | } |
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530 | |
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531 | /** |
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532 | Mass delete metadata for a given post_type. |
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533 | |
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534 | @param meta_id <b>integer</b> meta value |
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535 | @param type <b>string</b> meta type (if null, select all types) |
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536 | @param post_type <b>integer</b> impacted post_type (if null, select all types) |
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537 | @return <b>Array</b> the list of impacted post_ids |
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538 | */ |
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539 | public function delMeta($meta_id,$type=null,$post_type=null) |
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540 | { |
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541 | $strReq = 'SELECT M.post_id '. |
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542 | 'FROM '.$this->table.' M, '.$this->core->prefix.'post P '. |
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543 | 'WHERE P.post_id = M.post_id '. |
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544 | "AND P.blog_id = '".$this->con->escape($this->core->blog->id)."' ". |
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545 | "AND meta_id = '".$this->con->escape($meta_id)."' "; |
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546 | |
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547 | if ($type !== null) { |
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548 | $strReq .= " AND meta_type = '".$this->con->escape($type)."' "; |
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549 | } |
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550 | |
---|
551 | if ($post_type !== null) { |
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552 | $strReq .= " AND P.post_type = '".$this->con->escape($post_type)."' "; |
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553 | } |
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554 | |
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555 | $posts = $this->con->select($strReq); |
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556 | |
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557 | if (count($posts) == 0) return array(); |
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558 | |
---|
559 | $ids = array(); |
---|
560 | foreach ($posts as $p) { |
---|
561 | $ids[] = $p->post_id; |
---|
562 | } |
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563 | |
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564 | $strReq = 'DELETE FROM '.$this->table.' '. |
---|
565 | 'WHERE post_id IN ('.implode(',',$ids).') '. |
---|
566 | "AND meta_id = '".$this->con->escape($meta_id)."' "; |
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567 | |
---|
568 | if ($type !== null) { |
---|
569 | $strReq .= " AND meta_type = '".$this->con->escape($type)."' "; |
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570 | } |
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571 | |
---|
572 | $rs = $this->con->execute($strReq); |
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573 | |
---|
574 | foreach ($ids as $post_id) { |
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575 | $this->updatePostMeta($post_id); |
---|
576 | } |
---|
577 | |
---|
578 | return $ids; |
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579 | } |
---|
580 | } |
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581 | ?> |
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