source: branches/2.4/include/functions_notification.inc.php @ 17668

Last change on this file since 17668 was 12917, checked in by rvelices, 13 years ago

feature 2548 multisize - implement delete_element_derivatives
  • Property svn:eol-style set to LF
File size: 16.8 KB
Line 
1<?php
2// +-----------------------------------------------------------------------+
3// | Piwigo - a PHP based photo gallery                                    |
4// +-----------------------------------------------------------------------+
5// | Copyright(C) 2008-2012 Piwigo Team                  http://piwigo.org |
6// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
7// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
8// +-----------------------------------------------------------------------+
9// | This program is free software; you can redistribute it and/or modify  |
10// | it under the terms of the GNU General Public License as published by  |
11// | the Free Software Foundation                                          |
12// |                                                                       |
13// | This program is distributed in the hope that it will be useful, but   |
14// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
15// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
16// | General Public License for more details.                              |
17// |                                                                       |
18// | You should have received a copy of the GNU General Public License     |
19// | along with this program; if not, write to the Free Software           |
20// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
21// | USA.                                                                  |
22// +-----------------------------------------------------------------------+
23
24// +-----------------------------------------------------------------------+
25// |                               functions                               |
26// +-----------------------------------------------------------------------+
27
28/*
29 * get standard sql where in order to
30 * restict an filter caregories and images
31 *
32 * IMAGE_CATEGORY_TABLE muste named ic in the query
33 *
34 * @param none
35 *
36 * @return string sql where
37 */
38function get_std_sql_where_restrict_filter($prefix_condition, $img_field='ic.image_id', $force_one_condition = false)
39{
40  return get_sql_condition_FandF
41          (
42            array
43              (
44                'forbidden_categories' => 'ic.category_id',
45                'visible_categories' => 'ic.category_id',
46                'visible_images' => $img_field
47              ),
48            $prefix_condition,
49            $force_one_condition
50          );
51}
52
53/*
54 * Execute custom notification query
55 *
56 * @param string action ('count' or 'info')
57 * @param string type of query ('new_comments', 'unvalidated_comments', 'new_elements', 'updated_categories', 'new_users')
58 * @param string start (mysql datetime format)
59 * @param string end (mysql datetime format)
60 *
61 * @return integer for action count
62 *         array for info
63 */
64function custom_notification_query($action, $type, $start, $end)
65{
66  global $user;
67
68  switch($type)
69  {
70    case 'new_comments':
71      $query = '
72  FROM '.COMMENTS_TABLE.' AS c
73     , '.IMAGE_CATEGORY_TABLE.' AS ic
74  WHERE c.image_id = ic.image_id';
75      if (!empty($start))
76      {
77        $query .= '
78    AND c.validation_date > \''.$start.'\'';
79      }
80      if (!empty($end))
81      {
82        $query .= '
83    AND c.validation_date <= \''.$end.'\'';
84      }
85      $query .= get_std_sql_where_restrict_filter('AND').'
86;';
87      break;
88    case 'unvalidated_comments':
89      $query = '
90  FROM '.COMMENTS_TABLE.'
91  WHERE 1=1';
92      if (!empty($start))
93      {
94        $query .= ' AND date> \''.$start.'\'';
95      }
96      if (!empty($end))
97      {
98        $query .= ' AND date <= \''.$end.'\'';
99      }
100      $query .= ' AND validated = \'false\'
101;';
102      break;
103    case 'new_elements':
104      $query = '
105  FROM '.IMAGES_TABLE.' INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON image_id = id
106  WHERE 1=1';
107      if (!empty($start))
108      {
109        $query .= ' AND date_available > \''.$start.'\'';
110      }
111      if (!empty($end))
112      {
113        $query .= ' AND date_available <= \''.$end.'\'';
114      }
115      $query .= get_std_sql_where_restrict_filter('AND', 'id').'
116;';
117      break;
118    case 'updated_categories':
119      $query = '
120  FROM '.IMAGES_TABLE.' INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON image_id = id
121  WHERE 1=1';
122      if (!empty($start))
123      {
124        $query .= ' AND date_available > \''.$start.'\'';
125      }
126      if (!empty($end))
127      {
128        $query .= ' AND date_available <= \''.$end.'\'';
129      }
130      $query .= get_std_sql_where_restrict_filter('AND', 'id').'
131;';
132      break;
133    case 'new_users':
134      $query = '
135  FROM '.USER_INFOS_TABLE.'
136  WHERE 1=1';
137      if (!empty($start))
138      {
139        $query .= ' AND registration_date > \''.$start.'\'';
140      }
141      if (!empty($end))
142      {
143        $query .= ' AND registration_date <= \''.$end.'\'';
144      }
145      $query .= '
146;';
147      break;
148    default:
149      // stop this function and return nothing
150      return;
151      break;
152  }
153
154  switch($action)
155  {
156    case 'count':
157      switch($type)
158      {
159        case 'new_comments':
160          $field_id = 'c.id';
161          break;
162        case 'unvalidated_comments':
163          $field_id = 'id';
164          break;
165        case 'new_elements':
166          $field_id = 'image_id';
167          break;
168        case 'updated_categories':
169          $field_id = 'category_id';
170          break;
171        case 'new_users':
172          $field_id = 'user_id';
173          break;
174    }
175    $query = 'SELECT count(distinct '.$field_id.') as CountId
176'.$query;
177    list($count) = pwg_db_fetch_row(pwg_query($query));
178    return $count;
179
180    break;
181    case 'info':
182      switch($type)
183      {
184        case 'new_comments':
185          $fields = array('c.id');
186          break;
187        case 'unvalidated_comments':
188          $fields = array('id');
189          break;
190        case 'new_elements':
191          $fields = array('image_id');
192          break;
193        case 'updated_categories':
194          $fields = array('category_id');
195          break;
196        case 'new_users':
197          $fields = array('user_id');
198          break;
199      }
200
201    $query = 'SELECT distinct '.implode(', ', $fields).'
202'.$query;
203    $result = pwg_query($query);
204
205    $infos = array();
206
207    while ($row = pwg_db_fetch_assoc($result))
208    {
209      array_push($infos, $row);
210    }
211
212    return $infos;
213
214    break;
215  }
216
217  //return is done on previous switch($action)
218}
219
220/**
221 * new comments between two dates, according to authorized categories
222 *
223 * @param string start (mysql datetime format)
224 * @param string end (mysql datetime format)
225 * @param string forbidden categories (comma separated)
226 * @return count comment ids
227 */
228function nb_new_comments($start, $end)
229{
230  return custom_notification_query('count', 'new_comments', $start, $end);
231}
232
233/**
234 * new comments between two dates, according to authorized categories
235 *
236 * @param string start (mysql datetime format)
237 * @param string end (mysql datetime format)
238 * @param string forbidden categories (comma separated)
239 * @return array comment ids
240 */
241function new_comments($start, $end)
242{
243  return custom_notification_query('info', 'new_comments', $start, $end);
244}
245
246/**
247 * unvalidated at a precise date
248 *
249 * Comments that are registered and not validated yet on a precise date
250 *
251 * @param string start (mysql datetime format)
252 * @param string end (mysql datetime format)
253 * @return count comment ids
254 */
255function nb_unvalidated_comments($start, $end)
256{
257  return custom_notification_query('count', 'unvalidated_comments', $start, $end);
258}
259
260
261/**
262 * new elements between two dates, according to authorized categories
263 *
264 * @param string start (mysql datetime format)
265 * @param string end (mysql datetime format)
266 * @param string forbidden categories (comma separated)
267 * @return count element ids
268 */
269function nb_new_elements($start, $end)
270{
271  return custom_notification_query('count', 'new_elements', $start, $end);
272}
273
274/**
275 * new elements between two dates, according to authorized categories
276 *
277 * @param string start (mysql datetime format)
278 * @param string end (mysql datetime format)
279 * @param string forbidden categories (comma separated)
280 * @return array element ids
281 */
282function new_elements($start, $end)
283{
284  return custom_notification_query('info', 'new_elements', $start, $end);
285}
286
287/**
288 * updated categories between two dates, according to authorized categories
289 *
290 * @param string start (mysql datetime format)
291 * @param string end (mysql datetime format)
292 * @param string forbidden categories (comma separated)
293 * @return count element ids
294 */
295function nb_updated_categories($start, $end)
296{
297  return custom_notification_query('count', 'updated_categories', $start, $end);
298}
299
300/**
301 * updated categories between two dates, according to authorized categories
302 *
303 * @param string start (mysql datetime format)
304 * @param string end (mysql datetime format)
305 * @param string forbidden categories (comma separated)
306 * @return array element ids
307 */
308function updated_categories($start, $end)
309{
310  return custom_notification_query('info', 'updated_categories', $start, $end);
311}
312
313/**
314 * new registered users between two dates
315 *
316 * @param string start (mysql datetime format)
317 * @param string end (mysql datetime format)
318 * @return count user ids
319 */
320function nb_new_users($start, $end)
321{
322  return custom_notification_query('count', 'new_users', $start, $end);
323}
324
325/**
326 * new registered users between two dates
327 *
328 * @param string start (mysql datetime format)
329 * @param string end (mysql datetime format)
330 * @return array user ids
331 */
332function new_users($start, $end)
333{
334  return custom_notification_query('info', 'new_users', $start, $end);
335}
336
337/**
338 * There are new between two dates ?
339 *
340 * Informations : number of new comments, number of new elements, number of
341 * updated categories. Administrators are also informed about : number of
342 * unvalidated comments, number of new users (TODO : number of unvalidated
343 * elements)
344 *
345 * @param string start date (mysql datetime format)
346 * @param string end date (mysql datetime format)
347 *
348 * @return boolean : true if exist news else false
349 */
350function news_exists($start, $end)
351{
352  return (
353          (nb_new_comments($start, $end) > 0) or
354          (nb_new_elements($start, $end) > 0) or
355          (nb_updated_categories($start, $end) > 0) or
356          ((is_admin()) and (nb_unvalidated_comments($start, $end) > 0)) or
357          ((is_admin()) and (nb_new_users($start, $end) > 0)));
358}
359
360/**
361 * Formats a news line and adds it to the array (e.g. '5 new elements')
362 */
363function add_news_line(&$news, $count, $singular_fmt_key, $plural_fmt_key, $url='', $add_url=false)
364{
365  if ($count > 0)
366  {
367    $line = l10n_dec($singular_fmt_key, $plural_fmt_key, $count);
368    if ($add_url and !empty($url) )
369    {
370      $line = '<a href="'.$url.'">'.$line.'</a>';
371    }
372    array_push($news, $line);
373  }
374}
375
376/**
377 * What's new between two dates ?
378 *
379 * Informations : number of new comments, number of new elements, number of
380 * updated categories. Administrators are also informed about : number of
381 * unvalidated comments, number of new users (TODO : number of unvalidated
382 * elements)
383 *
384 * @param string start date (mysql datetime format)
385 * @param string end date (mysql datetime format)
386 * @param bool exclude_img_cats if true, no info about new images/categories
387 * @param bool add_url add html A link around news
388 *
389 * @return array of news
390 */
391function news($start, $end, $exclude_img_cats=false, $add_url=false)
392{
393  $news = array();
394
395  if (!$exclude_img_cats)
396  {
397    add_news_line( $news,
398      nb_new_elements($start, $end), '%d new photo', '%d new photos',
399      make_index_url(array('section'=>'recent_pics')), $add_url );
400  }
401
402  if (!$exclude_img_cats)
403  {
404    add_news_line( $news,
405      nb_updated_categories($start, $end), '%d album updated', '%d albums updated',
406      make_index_url(array('section'=>'recent_cats')), $add_url );
407  }
408
409  add_news_line( $news,
410      nb_new_comments($start, $end), '%d new comment', '%d new comments',
411      get_root_url().'comments.php', $add_url );
412
413  if (is_admin())
414  {
415    add_news_line( $news,
416        nb_unvalidated_comments($start, $end), '%d comment to validate', '%d comments to validate',
417        get_root_url().'admin.php?page=comments', $add_url );
418
419    add_news_line( $news,
420        nb_new_users($start, $end), '%d new user', '%d new users',
421        get_root_url().'admin.php?page=user_list', $add_url );
422  }
423
424  return $news;
425}
426
427/**
428 * returns information about recently published elements grouped by post date
429 * @param int max_dates maximum returned number of recent dates
430 * @param int max_elements maximum returned number of elements per date
431 * @param int max_cats maximum returned number of categories per date
432 */
433function get_recent_post_dates($max_dates, $max_elements, $max_cats)
434{
435  global $conf, $user;
436
437  $where_sql = get_std_sql_where_restrict_filter('WHERE', 'i.id', true);
438
439  $query = '
440SELECT date_available,
441      COUNT(DISTINCT id) AS nb_elements,
442      COUNT(DISTINCT category_id) AS nb_cats
443  FROM '.IMAGES_TABLE.' i INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON id=image_id
444  '.$where_sql.'
445  GROUP BY date_available
446  ORDER BY date_available DESC
447  LIMIT '.$max_dates.'
448;';
449  $result = pwg_query($query);
450  $dates = array();
451  while ($row = pwg_db_fetch_assoc($result))
452  {
453    array_push($dates, $row);
454  }
455
456  for ($i=0; $i<count($dates); $i++)
457  {
458    if ($max_elements>0)
459    { // get some thumbnails ...
460      $query = '
461SELECT DISTINCT i.*
462  FROM '.IMAGES_TABLE.' i INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON id=image_id
463  '.$where_sql.'
464    AND date_available=\''.$dates[$i]['date_available'].'\'
465  ORDER BY '.DB_RANDOM_FUNCTION.'()
466  LIMIT '.$max_elements.'
467;';
468      $dates[$i]['elements'] = array();
469      $result = pwg_query($query);
470      while ($row = pwg_db_fetch_assoc($result))
471      {
472        array_push($dates[$i]['elements'], $row);
473      }
474    }
475
476    if ($max_cats>0)
477    {// get some categories ...
478      $query = '
479SELECT DISTINCT c.uppercats, COUNT(DISTINCT i.id) AS img_count
480  FROM '.IMAGES_TABLE.' i INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON i.id=image_id
481    INNER JOIN '.CATEGORIES_TABLE.' c ON c.id=category_id
482  '.$where_sql.'
483    AND date_available=\''.$dates[$i]['date_available'].'\'
484  GROUP BY category_id, c.uppercats
485  ORDER BY img_count DESC
486  LIMIT '.$max_cats.'
487;';
488      $dates[$i]['categories'] = array();
489      $result = pwg_query($query);
490      while ($row = pwg_db_fetch_assoc($result))
491      {
492        array_push($dates[$i]['categories'], $row);
493      }
494    }
495  }
496  return $dates;
497}
498
499/*
500  Call function get_recent_post_dates but
501  the parameters to be passed to the function, as an indexed array.
502
503*/
504function get_recent_post_dates_array($args)
505{
506  return
507    get_recent_post_dates
508    (
509      (empty($args['max_dates']) ? 3 : $args['max_dates']),
510      (empty($args['max_elements']) ? 3 : $args['max_elements']),
511      (empty($args['max_cats']) ? 3 : $args['max_cats'])
512    );
513}
514
515
516/**
517 * returns html description about recently published elements grouped by post date
518 * @param $date_detail: selected date computed by get_recent_post_dates function
519 */
520function get_html_description_recent_post_date($date_detail)
521{
522  global $conf;
523
524  $description = '<ul>';
525
526  $description .=
527        '<li>'
528        .l10n_dec('%d new photo', '%d new photos', $date_detail['nb_elements'])
529        .' ('
530        .'<a href="'.make_index_url(array('section'=>'recent_pics')).'">'
531          .l10n('Recent photos').'</a>'
532        .')'
533        .'</li><br>';
534
535  foreach($date_detail['elements'] as $element)
536  {
537    $tn_src = DerivativeImage::thumb_url($element);
538    $description .= '<a href="'.
539                    make_picture_url(array(
540                        'image_id' => $element['id'],
541                        'image_file' => $element['file'],
542                      ))
543                    .'"><img src="'.$tn_src.'"></a>';
544  }
545  $description .= '...<br>';
546
547  $description .=
548        '<li>'
549        .l10n_dec('%d album updated', '%d albums updated',
550                  $date_detail['nb_cats'])
551        .'</li>';
552
553  $description .= '<ul>';
554  foreach($date_detail['categories'] as $cat)
555  {
556    $description .=
557          '<li>'
558          .get_cat_display_name_cache($cat['uppercats'])
559          .' ('.
560          l10n_dec('%d new photo',
561                   '%d new photos', $cat['img_count']).')'
562          .'</li>';
563  }
564  $description .= '</ul>';
565
566  $description .= '</ul>';
567
568  return $description;
569}
570
571/**
572 * returns title about recently published elements grouped by post date
573 * @param $date_detail: selected date computed by get_recent_post_dates function
574 */
575function get_title_recent_post_date($date_detail)
576{
577  global $lang;
578
579  $date = $date_detail['date_available'];
580  $exploded_date = strptime($date, '%Y-%m-%d %H:%M:%S');
581
582  $title = l10n_dec('%d new photo', '%d new photos', $date_detail['nb_elements']);
583  $title .= ' ('.$lang['month'][1+$exploded_date['tm_mon']].' '.$exploded_date['tm_mday'].')';
584
585  return $title;
586}
587
588if(!function_exists("strptime"))
589{
590                function strptime($date, $fmt)
591                {
592                        if ($fmt != '%Y-%m-%d %H:%M:%S')
593                                die('Invalid strptime format '.$fmt);
594                        list($y,$m,$d,$H,$M,$S) = preg_split('/[-: ]/', $date);
595                        $res = localtime( mktime($H,$M,$S,$m,$d,$y), true );
596                        return $res;
597                }
598 }
599?>
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