1 | <?php |
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2 | |
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3 | /** |
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4 | * @file |
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5 | * User page callbacks for the aggregator module. |
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6 | */ |
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7 | |
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8 | /** |
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9 | * Menu callback; displays the most recent items gathered from any feed. |
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10 | * |
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11 | * @return |
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12 | * The items HTML. |
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13 | */ |
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14 | function aggregator_page_last() { |
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15 | drupal_add_feed(url('aggregator/rss'), variable_get('site_name', 'Drupal') .' '. t('aggregator')); |
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16 | |
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17 | $items = aggregator_feed_items_load('SELECT i.*, f.title AS ftitle, f.link AS flink FROM {aggregator_item} i INNER JOIN {aggregator_feed} f ON i.fid = f.fid ORDER BY i.timestamp DESC, i.iid DESC'); |
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18 | |
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19 | return _aggregator_page_list($items, arg(1)); |
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20 | } |
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21 | |
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22 | /** |
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23 | * Menu callback; displays all the items captured from a particular feed. |
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24 | * |
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25 | * If there are two arguments then this function is the categorize form. |
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26 | * |
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27 | * @param $arg1 |
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28 | * If there are two arguments then $arg1 is $form_state. Otherwise, $arg1 is $feed. |
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29 | * @param $arg2 |
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30 | * If there are two arguments then $arg2 is feed. |
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31 | * @return |
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32 | * The items HTML. |
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33 | */ |
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34 | function aggregator_page_source($arg1, $arg2 = NULL) { |
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35 | // If there are two arguments then this function is the categorize form, and |
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36 | // $arg1 is $form_state and $arg2 is $feed. Otherwise, $arg1 is $feed. |
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37 | $feed = is_array($arg2) ? $arg2 : $arg1; |
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38 | $feed = (object)$feed; |
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39 | drupal_set_title(check_plain($feed->title)); |
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40 | $feed_source = theme('aggregator_feed_source', $feed); |
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41 | |
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42 | // It is safe to include the fid in the query because it's loaded from the |
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43 | // database by aggregator_feed_load. |
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44 | $items = aggregator_feed_items_load('SELECT * FROM {aggregator_item} WHERE fid = '. $feed->fid .' ORDER BY timestamp DESC, iid DESC'); |
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45 | |
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46 | return _aggregator_page_list($items, arg(3), $feed_source); |
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47 | } |
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48 | |
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49 | /** |
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50 | * Menu callback; displays all the items aggregated in a particular category. |
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51 | * |
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52 | * If there are two arguments then this function is called as a form. |
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53 | * |
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54 | * @param $arg1 |
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55 | * If there are two arguments then $arg1 is $form_state. Otherwise, $arg1 is $category. |
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56 | * @param $arg2 |
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57 | * If there are two arguments then $arg2 is $category. |
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58 | * @return |
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59 | * The items HTML. |
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60 | */ |
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61 | function aggregator_page_category($arg1, $arg2 = NULL) { |
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62 | // If there are two arguments then we are called as a form, $arg1 is |
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63 | // $form_state and $arg2 is $category. Otherwise, $arg1 is $category. |
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64 | $category = is_array($arg2) ? $arg2 : $arg1; |
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65 | |
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66 | drupal_add_feed(url('aggregator/rss/'. $category['cid']), variable_get('site_name', 'Drupal') .' '. t('aggregator - @title', array('@title' => $category['title']))); |
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67 | |
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68 | // It is safe to include the cid in the query because it's loaded from the |
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69 | // database by aggregator_category_load. |
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70 | $items = aggregator_feed_items_load('SELECT i.*, f.title AS ftitle, f.link AS flink FROM {aggregator_category_item} c LEFT JOIN {aggregator_item} i ON c.iid = i.iid LEFT JOIN {aggregator_feed} f ON i.fid = f.fid WHERE cid = '. $category['cid'] .' ORDER BY timestamp DESC, i.iid DESC'); |
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71 | |
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72 | return _aggregator_page_list($items, arg(3)); |
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73 | } |
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74 | |
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75 | /** |
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76 | * Load feed items by passing a SQL query. |
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77 | * |
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78 | * @param $sql |
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79 | * The query to be executed. |
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80 | * @return |
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81 | * An array of the feed items. |
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82 | */ |
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83 | function aggregator_feed_items_load($sql) { |
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84 | $items = array(); |
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85 | if (isset($sql)) { |
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86 | $result = pager_query($sql, 20); |
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87 | while ($item = db_fetch_object($result)) { |
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88 | $result_category = db_query('SELECT c.title, c.cid FROM {aggregator_category_item} ci LEFT JOIN {aggregator_category} c ON ci.cid = c.cid WHERE ci.iid = %d ORDER BY c.title', $item->iid); |
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89 | $item->categories = array(); |
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90 | while ($item_categories = db_fetch_object($result_category)) { |
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91 | $item->categories[] = $item_categories; |
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92 | } |
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93 | $items[$item->iid] = $item; |
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94 | } |
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95 | } |
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96 | return $items; |
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97 | } |
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98 | |
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99 | /** |
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100 | * Prints an aggregator page listing a number of feed items. |
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101 | * |
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102 | * Various menu callbacks use this function to print their feeds. |
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103 | * |
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104 | * @param $items |
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105 | * The items to be listed. |
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106 | * @param $op |
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107 | * Which form should be added to the items. Only 'categorize' is now recognized. |
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108 | * @param $feed_source |
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109 | * The feed source URL. |
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110 | * @return |
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111 | * The items HTML. |
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112 | */ |
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113 | function _aggregator_page_list($items, $op, $feed_source = '') { |
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114 | if (user_access('administer news feeds') && ($op == 'categorize')) { |
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115 | // Get form data. |
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116 | $output = aggregator_categorize_items($items, $feed_source); |
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117 | } |
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118 | else { |
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119 | // Assemble themed output. |
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120 | $output = $feed_source; |
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121 | foreach ($items as $item) { |
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122 | $output .= theme('aggregator_item', $item); |
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123 | } |
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124 | $output = theme('aggregator_wrapper', $output); |
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125 | } |
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126 | return $output; |
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127 | } |
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128 | |
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129 | /** |
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130 | * Form builder; build the page list form. |
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131 | * |
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132 | * @param $items |
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133 | * An array of the feed items. |
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134 | * @param $feed_source |
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135 | * The feed source URL. |
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136 | * @return |
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137 | * The form structure. |
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138 | * @ingroup forms |
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139 | * @see aggregator_categorize_items_validate() |
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140 | * @see aggregator_categorize_items_submit() |
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141 | */ |
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142 | function aggregator_categorize_items($items, $feed_source = '') { |
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143 | $form['#submit'][] = 'aggregator_categorize_items_submit'; |
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144 | $form['#validate'][] = 'aggregator_categorize_items_validate'; |
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145 | $form['#theme'] = 'aggregator_categorize_items'; |
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146 | $form['feed_source'] = array('#value' => $feed_source); |
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147 | $categories = array(); |
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148 | $done = FALSE; |
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149 | $form['items'] = array(); |
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150 | $form['categories'] = array('#tree' => TRUE); |
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151 | foreach ($items as $item) { |
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152 | $form['items'][$item->iid] = array('#value' => theme('aggregator_item', $item)); |
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153 | $form['categories'][$item->iid] = array(); |
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154 | $categories_result = db_query('SELECT c.cid, c.title, ci.iid FROM {aggregator_category} c LEFT JOIN {aggregator_category_item} ci ON c.cid = ci.cid AND ci.iid = %d', $item->iid); |
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155 | $selected = array(); |
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156 | while ($category = db_fetch_object($categories_result)) { |
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157 | if (!$done) { |
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158 | $categories[$category->cid] = check_plain($category->title); |
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159 | } |
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160 | if ($category->iid) { |
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161 | $selected[] = $category->cid; |
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162 | } |
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163 | } |
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164 | $done = TRUE; |
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165 | $form['categories'][$item->iid] = array( |
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166 | '#type' => variable_get('aggregator_category_selector', 'checkboxes'), |
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167 | '#default_value' => $selected, |
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168 | '#options' => $categories, |
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169 | '#size' => 10, |
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170 | '#multiple' => TRUE |
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171 | ); |
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172 | } |
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173 | $form['submit'] = array('#type' => 'submit', '#value' => t('Save categories')); |
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174 | |
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175 | return $form; |
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176 | } |
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177 | |
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178 | /** |
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179 | * Validate aggregator_categorize_items form submissions. |
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180 | */ |
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181 | function aggregator_categorize_items_validate($form, &$form_state) { |
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182 | if (!user_access('administer news feeds')) { |
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183 | form_error($form, t('You are not allowed to categorize this feed item.')); |
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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 | * Process aggregator_categorize_items form submissions. |
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189 | */ |
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190 | function aggregator_categorize_items_submit($form, &$form_state) { |
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191 | if (!empty($form_state['values']['categories'])) { |
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192 | foreach ($form_state['values']['categories'] as $iid => $selection) { |
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193 | db_query('DELETE FROM {aggregator_category_item} WHERE iid = %d', $iid); |
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194 | foreach ($selection as $cid) { |
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195 | if ($cid) { |
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196 | db_query('INSERT INTO {aggregator_category_item} (cid, iid) VALUES (%d, %d)', $cid, $iid); |
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197 | } |
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198 | } |
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199 | } |
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200 | } |
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201 | drupal_set_message(t('The categories have been saved.')); |
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202 | } |
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203 | |
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204 | /** |
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205 | * Theme the page list form for assigning categories. |
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206 | * |
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207 | * @param $form |
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208 | * An associative array containing the structure of the form. |
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209 | * @return |
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210 | * The output HTML. |
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211 | * @ingroup themeable |
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212 | */ |
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213 | function theme_aggregator_categorize_items($form) { |
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214 | $output = drupal_render($form['feed_source']); |
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215 | $rows = array(); |
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216 | if ($form['items']) { |
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217 | foreach (element_children($form['items']) as $key) { |
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218 | if (is_array($form['items'][$key])) { |
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219 | $rows[] = array( |
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220 | drupal_render($form['items'][$key]), |
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221 | array('data' => drupal_render($form['categories'][$key]), 'class' => 'categorize-item'), |
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222 | ); |
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223 | } |
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224 | } |
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225 | } |
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226 | $output .= theme('table', array('', t('Categorize')), $rows); |
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227 | $output .= drupal_render($form['submit']); |
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228 | $output .= drupal_render($form); |
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229 | return theme('aggregator_wrapper', $output); |
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230 | } |
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231 | |
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232 | /** |
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233 | * Process variables for aggregator-wrapper.tpl.php. |
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234 | * |
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235 | * @see aggregator-wrapper.tpl.php |
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236 | */ |
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237 | function template_preprocess_aggregator_wrapper(&$variables) { |
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238 | $variables['pager'] = theme('pager', NULL, 20, 0); |
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239 | } |
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240 | |
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241 | /** |
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242 | * Process variables for aggregator-item.tpl.php. |
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243 | * |
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244 | * @see aggregator-item.tpl.php |
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245 | */ |
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246 | function template_preprocess_aggregator_item(&$variables) { |
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247 | $item = $variables['item']; |
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248 | |
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249 | $variables['feed_url'] = check_url($item->link); |
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250 | $variables['feed_title'] = check_plain($item->title); |
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251 | $variables['content'] = aggregator_filter_xss($item->description); |
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252 | |
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253 | $variables['source_url'] = ''; |
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254 | $variables['source_title'] = ''; |
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255 | if (isset($item->ftitle) && isset($item->fid)) { |
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256 | $variables['source_url'] = url("aggregator/sources/$item->fid"); |
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257 | $variables['source_title'] = check_plain($item->ftitle); |
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258 | } |
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259 | if (date('Ymd', $item->timestamp) == date('Ymd')) { |
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260 | $variables['source_date'] = t('%ago ago', array('%ago' => format_interval(time() - $item->timestamp))); |
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261 | } |
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262 | else { |
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263 | $variables['source_date'] = format_date($item->timestamp, 'custom', variable_get('date_format_medium', 'D, m/d/Y - H:i')); |
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264 | } |
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265 | |
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266 | $variables['categories'] = array(); |
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267 | foreach ($item->categories as $category) { |
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268 | $variables['categories'][$category->cid] = l($category->title, 'aggregator/categories/'. $category->cid); |
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269 | } |
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270 | } |
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271 | |
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272 | /** |
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273 | * Menu callback; displays all the feeds used by the aggregator. |
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274 | */ |
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275 | function aggregator_page_sources() { |
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276 | $result = db_query('SELECT f.fid, f.title, f.description, f.image, MAX(i.timestamp) AS last FROM {aggregator_feed} f LEFT JOIN {aggregator_item} i ON f.fid = i.fid GROUP BY f.fid, f.title, f.description, f.image ORDER BY last DESC, f.title'); |
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277 | |
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278 | $output = ''; |
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279 | while ($feed = db_fetch_object($result)) { |
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280 | // Most recent items: |
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281 | $summary_items = array(); |
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282 | if (variable_get('aggregator_summary_items', 3)) { |
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283 | $items = db_query_range('SELECT i.title, i.timestamp, i.link FROM {aggregator_item} i WHERE i.fid = %d ORDER BY i.timestamp DESC', $feed->fid, 0, variable_get('aggregator_summary_items', 3)); |
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284 | while ($item = db_fetch_object($items)) { |
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285 | $summary_items[] = theme('aggregator_summary_item', $item); |
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286 | } |
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287 | } |
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288 | $feed->url = url('aggregator/sources/'. $feed->fid); |
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289 | $output .= theme('aggregator_summary_items', $summary_items, $feed); |
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290 | } |
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291 | $output .= theme('feed_icon', url('aggregator/opml'), t('OPML feed')); |
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292 | |
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293 | return theme('aggregator_wrapper', $output); |
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294 | } |
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295 | |
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296 | /** |
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297 | * Menu callback; displays all the categories used by the aggregator. |
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298 | */ |
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299 | function aggregator_page_categories() { |
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300 | $result = db_query('SELECT c.cid, c.title, c.description FROM {aggregator_category} c LEFT JOIN {aggregator_category_item} ci ON c.cid = ci.cid LEFT JOIN {aggregator_item} i ON ci.iid = i.iid GROUP BY c.cid, c.title, c.description'); |
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301 | |
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302 | $output = ''; |
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303 | while ($category = db_fetch_object($result)) { |
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304 | if (variable_get('aggregator_summary_items', 3)) { |
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305 | $summary_items = array(); |
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306 | $items = db_query_range('SELECT i.title, i.timestamp, i.link, f.title as feed_title, f.link as feed_link FROM {aggregator_category_item} ci LEFT JOIN {aggregator_item} i ON i.iid = ci.iid LEFT JOIN {aggregator_feed} f ON i.fid = f.fid WHERE ci.cid = %d ORDER BY i.timestamp DESC', $category->cid, 0, variable_get('aggregator_summary_items', 3)); |
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307 | while ($item = db_fetch_object($items)) { |
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308 | $summary_items[] = theme('aggregator_summary_item', $item); |
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309 | } |
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310 | } |
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311 | $category->url = url('aggregator/categories/'. $category->cid); |
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312 | $output .= theme('aggregator_summary_items', $summary_items, $category); |
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313 | } |
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314 | |
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315 | return theme('aggregator_wrapper', $output); |
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316 | } |
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317 | |
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318 | /** |
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319 | * Menu callback; generate an RSS 0.92 feed of aggregator items or categories. |
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320 | */ |
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321 | function aggregator_page_rss() { |
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322 | $result = NULL; |
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323 | // arg(2) is the passed cid, only select for that category |
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324 | if (arg(2)) { |
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325 | $category = db_fetch_object(db_query('SELECT cid, title FROM {aggregator_category} WHERE cid = %d', arg(2))); |
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326 | $sql = 'SELECT i.*, f.title AS ftitle, f.link AS flink FROM {aggregator_category_item} c LEFT JOIN {aggregator_item} i ON c.iid = i.iid LEFT JOIN {aggregator_feed} f ON i.fid = f.fid WHERE cid = %d ORDER BY timestamp DESC, i.iid DESC'; |
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327 | $result = db_query_range($sql, $category->cid, 0, variable_get('feed_default_items', 10)); |
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328 | } |
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329 | // or, get the default aggregator items |
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330 | else { |
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331 | $category = NULL; |
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332 | $sql = 'SELECT i.*, f.title AS ftitle, f.link AS flink FROM {aggregator_item} i INNER JOIN {aggregator_feed} f ON i.fid = f.fid ORDER BY i.timestamp DESC, i.iid DESC'; |
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333 | $result = db_query_range($sql, 0, variable_get('feed_default_items', 10)); |
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334 | } |
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335 | |
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336 | $feeds = array(); |
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337 | while ($item = db_fetch_object($result)) { |
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338 | $feeds[] = $item; |
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339 | } |
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340 | return theme('aggregator_page_rss', $feeds, $category); |
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341 | } |
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342 | |
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343 | /** |
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344 | * Theme the RSS output. |
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345 | * |
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346 | * @param $feeds |
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347 | * An array of the feeds to theme. |
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348 | * @param $category |
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349 | * A common category, if any, for all the feeds. |
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350 | * @ingroup themeable |
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351 | */ |
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352 | function theme_aggregator_page_rss($feeds, $category = NULL) { |
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353 | drupal_set_header('Content-Type: application/rss+xml; charset=utf-8'); |
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354 | |
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355 | $items = ''; |
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356 | $feed_length = variable_get('feed_item_length', 'teaser'); |
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357 | foreach ($feeds as $feed) { |
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358 | switch ($feed_length) { |
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359 | case 'teaser': |
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360 | $teaser = node_teaser($feed->description); |
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361 | if ($teaser != $feed->description) { |
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362 | $teaser .= '<p><a href="'. check_url($feed->link) .'">'. t('read more') ."</a></p>\n"; |
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363 | } |
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364 | $feed->description = $teaser; |
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365 | break; |
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366 | case 'title': |
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367 | $feed->description = ''; |
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368 | break; |
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369 | } |
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370 | $items .= format_rss_item($feed->ftitle .': '. $feed->title, $feed->link, $feed->description, array('pubDate' => date('r', $feed->timestamp))); |
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371 | } |
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372 | |
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373 | $site_name = variable_get('site_name', 'Drupal'); |
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374 | $url = url((isset($category) ? 'aggregator/categories/'. $category->cid : 'aggregator'), array('absolute' => TRUE)); |
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375 | $description = isset($category) ? t('@site_name - aggregated feeds in category @title', array('@site_name' => $site_name, '@title' => $category->title)) : t('@site_name - aggregated feeds', array('@site_name' => $site_name)); |
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376 | |
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377 | $output = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"; |
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378 | $output .= "<rss version=\"2.0\">\n"; |
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379 | $output .= format_rss_channel(t('@site_name aggregator', array('@site_name' => $site_name)), $url, $description, $items); |
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380 | $output .= "</rss>\n"; |
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381 | |
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382 | print $output; |
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383 | } |
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384 | |
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385 | /** |
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386 | * Menu callback; generates an OPML representation of all feeds. |
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387 | * |
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388 | * @param $cid |
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389 | * If set, feeds are exported only from a category with this ID. Otherwise, all feeds are exported. |
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390 | * @return |
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391 | * The output XML. |
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392 | */ |
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393 | function aggregator_page_opml($cid = NULL) { |
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394 | if ($cid) { |
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395 | $result = db_query('SELECT f.title, f.url FROM {aggregator_feed} f LEFT JOIN {aggregator_category_feed} c on f.fid = c.fid WHERE c.cid = %d ORDER BY title', $cid); |
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396 | } |
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397 | else { |
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398 | $result = db_query('SELECT * FROM {aggregator_feed} ORDER BY title'); |
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399 | } |
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400 | |
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401 | $feeds = array(); |
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402 | while ($item = db_fetch_object($result)) { |
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403 | $feeds[] = $item; |
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404 | } |
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405 | |
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406 | return theme('aggregator_page_opml', $feeds); |
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407 | } |
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408 | |
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409 | /** |
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410 | * Theme the OPML feed output. |
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411 | * |
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412 | * @param $feeds |
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413 | * An array of the feeds to theme. |
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414 | * @ingroup themeable |
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415 | */ |
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416 | function theme_aggregator_page_opml($feeds) { |
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417 | |
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418 | drupal_set_header('Content-Type: text/xml; charset=utf-8'); |
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419 | |
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420 | $output = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"; |
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421 | $output .= "<opml version=\"1.1\">\n"; |
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422 | $output .= "<head>\n"; |
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423 | $output .= '<title>'. check_plain(variable_get('site_name', 'Drupal')) ."</title>\n"; |
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424 | $output .= '<dateModified>'. gmdate('r') ."</dateModified>\n"; |
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425 | $output .= "</head>\n"; |
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426 | $output .= "<body>\n"; |
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427 | foreach ($feeds as $feed) { |
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428 | $output .= '<outline text="'. check_plain($feed->title) .'" xmlUrl="'. check_url($feed->url) ."\" />\n"; |
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429 | } |
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430 | $output .= "</body>\n"; |
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431 | $output .= "</opml>\n"; |
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432 | |
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433 | print $output; |
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434 | } |
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435 | |
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436 | /** |
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437 | * Process variables for aggregator-summary-items.tpl.php. |
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438 | * |
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439 | * @see aggregator-summary-item.tpl.php |
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440 | */ |
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441 | function template_preprocess_aggregator_summary_items(&$variables) { |
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442 | $variables['title'] = check_plain($variables['source']->title); |
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443 | $variables['summary_list'] = theme('item_list', $variables['summary_items']); |
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444 | $variables['source_url'] = $variables['source']->url; |
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445 | } |
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446 | |
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447 | /** |
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448 | * Process variables for aggregator-summary-item.tpl.php. |
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449 | * |
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450 | * @see aggregator-summary-item.tpl.php |
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451 | */ |
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452 | function template_preprocess_aggregator_summary_item(&$variables) { |
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453 | $item = $variables['item']; |
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454 | |
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455 | $variables['feed_url'] = check_url($item->link); |
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456 | $variables['feed_title'] = check_plain($item->title); |
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457 | $variables['feed_age'] = t('%age old', array('%age' => format_interval(time() - $item->timestamp))); |
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458 | |
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459 | $variables['source_url'] = ''; |
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460 | $variables['source_title'] = ''; |
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461 | if (!empty($item->feed_link)) { |
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462 | $variables['source_url'] = check_url($item->feed_link); |
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463 | $variables['source_title'] = check_plain($item->feed_title); |
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464 | } |
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465 | } |
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466 | |
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467 | /** |
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468 | * Process variables for aggregator-feed-source.tpl.php. |
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469 | * |
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470 | * @see aggregator-feed-source.tpl.php |
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471 | */ |
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472 | function template_preprocess_aggregator_feed_source(&$variables) { |
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473 | $feed = $variables['feed']; |
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474 | |
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475 | $variables['source_icon'] = theme('feed_icon', $feed->url, t('!title feed', array('!title' => $feed->title))); |
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476 | $variables['source_image'] = $feed->image; |
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477 | $variables['source_description'] = aggregator_filter_xss($feed->description); |
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478 | $variables['source_url'] = check_url(url($feed->link, array('absolute' => TRUE))); |
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479 | |
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480 | if ($feed->checked) { |
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481 | $variables['last_checked'] = t('@time ago', array('@time' => format_interval(time() - $feed->checked))); |
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482 | } |
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483 | else { |
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484 | $variables['last_checked'] = t('never'); |
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485 | } |
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486 | |
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487 | if (user_access('administer news feeds')) { |
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488 | $variables['last_checked'] = l($variables['last_checked'], 'admin/content/aggregator'); |
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489 | } |
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490 | } |
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