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root / drupal7 / sites / all / modules / date / date_views / includes / date_views_filter_handler_simple.inc @ 599a39cd

1
<?php
2

    
3
/**
4
 * @file
5
 * A standard Views filter for a single date field.
6
 */
7

    
8
/**
9
 * A standard Views filter for a single date field.
10
 */
11
class date_views_filter_handler_simple extends views_handler_filter_date {
12

    
13
  /**
14
   * @var object
15
   */
16
  public $date_handler = NULL;
17

    
18
  /**
19
   * @var int
20
   */
21
  public $offset = NULL;
22

    
23
  /**
24
   * {@inheritdoc}
25
   */
26
  function init(&$view, &$options) {
27
    parent::init($view, $options);
28
    module_load_include('inc', 'date_api', 'date_api_sql');
29
    $this->date_handler = new date_sql_handler(DATE_UNIX);
30
    if (!empty($this->definition['field_name'])) {
31
      $field = field_info_field($this->definition['field_name']);
32
      if (!empty($field) && !empty($field['type'])) {
33
        $this->date_handler->date_type = $field['type'];
34
      }
35
      $this->date_handler->db_timezone = date_get_timezone_db($field['settings']['tz_handling']);
36
      $this->date_handler->local_timezone = date_get_timezone($field['settings']['tz_handling']);
37
    }
38
    $this->form_submitted = FALSE;
39
    $this->date_handler->granularity = isset($options['granularity']) ? $options['granularity'] : 'day';
40
    $this->format = $this->date_handler->views_formats($this->options['granularity'], 'sql');
41

    
42
    // Identify the base table for this field. It will be used to call for the
43
    // right query field options.
44
    $this->base_table = $this->table;
45
  }
46

    
47
  /**
48
   * {@inheritdoc}
49
   */
50
  function option_definition() {
51
    $options = parent::option_definition();
52
    $options['granularity'] = array('default' => 'day');
53
    $options['form_type'] = array('default' => 'date_select');
54
    $options['default_date'] = array('default' => '');
55
    $options['default_to_date'] = array('default' => '');
56
    $options['year_range'] = array('default' => '-3:+3');
57
    $options['add_delta'] = array('default' => '');
58
    return $options;
59
  }
60

    
61
  /**
62
   * {@inheritdoc}
63
   */
64
  function operators() {
65
    // Cache the operators that are being added.
66
    static $new_operators;
67
    if (!isset($new_operators)) {
68
      $new_operators = array(
69
        'title' => t('Contains'),
70
        'method' => 'op_contains',
71
        'short' => t('contains'),
72
        'values' => 1,
73
      );
74
    }
75

    
76
    // Add the new 'contains' operators.
77
    $operators = parent::operators();
78
    $operators['contains'] = $new_operators;
79
    return $operators;
80
  }
81

    
82
  /**
83
   * Helper function to find a default value.
84
   */
85
  function date_default_value($prefix, $options = NULL) {
86
    $default_date = '';
87
    if (empty($options)) {
88
      $options = $this->options;
89
    }
90
    // If this is a remembered value, use the value from the SESSION.
91
    if (!empty($this->options['expose']['remember'])) {
92
      $display_id = ($this->view->display_handler->is_defaulted('filters')) ? 'default' : $this->view->current_display;
93
      if (!empty($_SESSION['views'][$this->view->name][$display_id][$this->options['expose']['identifier']][$prefix])) {
94
        return $_SESSION['views'][$this->view->name][$display_id][$this->options['expose']['identifier']][$prefix];
95
      }
96
    }
97

    
98
    // This is a date that needs to be constructed from options like 'now' .
99
    $default_option = $prefix == 'max' ? $options['default_to_date'] : $options['default_date'];
100
    if (!empty($default_option)) {
101
      str_replace('now', 'today', $default_option);
102
      $date = date_create($default_option, date_default_timezone_object());
103
      $default_date = !empty($date) ? $date->format($this->format) : '';
104

    
105
      // The format for our filter is in ISO format, but the widget will need it in datetime format.
106
      $default_date = str_replace('T', ' ', $default_date);
107
    }
108
    // This a fixed date.
109
    else {
110
      $default_date = $options['value'][$prefix];
111
    }
112
    return $default_date;
113
  }
114

    
115
  /**
116
   * Helper function to see if we need to swap in the default value.
117
   *
118
   * Views exposed filters treat everything as submitted, so if it's an empty
119
   * value we have to see if anything actually was submitted. If nothing has
120
   * really been submitted, we need to swap in our default value logic.
121
   */
122
  function get_filter_value($prefix, $input) {
123
    // All our date widgets provide datetime values but we use ISO in our SQL
124
    // for consistency between the way filters and arguments work (arguments
125
    // cannot contain spaces).
126
    if (empty($input)) {
127
      if (empty($this->options['exposed'])) {
128
        return str_replace(' ', 'T', $this->date_default_value($prefix));
129
      }
130
      elseif (isset($this->options['expose']['identifier']) && !isset($_GET[$this->options['expose']['identifier']])) {
131
        return str_replace(' ', 'T', $this->date_default_value($prefix));
132
      }
133
    }
134

    
135
    return str_replace(' ', 'T', $input);
136
  }
137

    
138
  /**
139
   * {@inheritdoc}
140
   */
141
  function accept_exposed_input($input) {
142
    if (!empty($this->options['exposed'])) {
143
      $element_input = $input[$this->options['expose']['identifier']];
144
      $element_input['value'] = $this->get_filter_value('value', !empty($element_input['value']) ? $element_input['value'] : '');
145
      $element_input['min'] = $this->get_filter_value('min', !empty($element_input['min']) ? $element_input['min'] : '');
146
      $element_input['max'] = $this->get_filter_value('max', !empty($element_input['max']) ? $element_input['max'] : '');
147
      if (is_array($element_input) && isset($element_input['default_date'])) {
148
        unset($element_input['default_date']);
149
      }
150
      if (is_array($element_input) && isset($element_input['default_to_date'])) {
151
        unset($element_input['default_to_date']);
152
      }
153

    
154
      $input[$this->options['expose']['identifier']] = $element_input;
155
    }
156
    return parent::accept_exposed_input($input);
157
  }
158

    
159
  /**
160
   * @todo
161
   */
162
  function op_between($field) {
163
    // Add the delta field to the view so we can later find the value that
164
    // matched our query.
165
    list($table_name, $field_name) = explode('.', $field);
166
    if (!empty($this->options['add_delta']) && (substr($field_name, -6) == '_value' || substr($field_name, -7) == '_value2')) {
167
      $this->query->add_field($table_name, 'delta');
168
      $real_field_name = str_replace(array('_value', '_value2'), '', $this->real_field);
169
      $this->query->add_field($table_name, 'entity_id', 'date_id_' . $real_field_name);
170
      $this->query->add_field($table_name, 'delta', 'date_delta_' . $real_field_name);
171
    }
172

    
173
    $min_value = $this->get_filter_value('min', $this->value['min']);
174
    $min_comp_date = new DateObject($min_value, date_default_timezone(), $this->format);
175
    $max_value = $this->get_filter_value('max', $this->value['max']);
176
    $max_comp_date = new DateObject($max_value, date_default_timezone(), $this->format);
177
    $field_min = $this->date_handler->sql_field($field, NULL, $min_comp_date);
178
    $field_min = $this->date_handler->sql_format($this->format, $field_min);
179
    $field_max = $this->date_handler->sql_field($field, NULL, $max_comp_date);
180
    $field_max = $this->date_handler->sql_format($this->format, $field_max);
181
    $placeholder_min = $this->placeholder();
182
    $placeholder_max = $this->placeholder();
183
    $group = !empty($this->options['date_group']) ? $this->options['date_group'] : $this->options['group'];
184
    if ($this->operator == 'between') {
185
      $this->query->add_where_expression($group, "$field_min >= $placeholder_min AND $field_max <= $placeholder_max", array($placeholder_min => $min_value, $placeholder_max => $max_value));
186
    }
187
    else {
188
      $this->query->add_where_expression($group, "$field_min < $placeholder_min OR $field_max > $placeholder_max", array($placeholder_min => $min_value, $placeholder_max => $max_value));
189
    }
190
  }
191

    
192
  /**
193
   * @todo
194
   */
195
  function op_simple($field) {
196
    // Add the delta field to the view so we can later find the value that
197
    // matched our query.
198
    list($table_name, $field_name) = explode('.', $field);
199
    if (!empty($this->options['add_delta']) && (substr($field_name, -6) == '_value' || substr($field_name, -7) == '_value2')) {
200
      $this->query->add_field($table_name, 'delta');
201
      $real_field_name = str_replace(array('_value', '_value2'), '', $this->real_field);
202
      $this->query->add_field($table_name, 'entity_id', 'date_id_' . $real_field_name);
203
      $this->query->add_field($table_name, 'delta', 'date_delta_' . $real_field_name);
204
    }
205

    
206
    $value = $this->get_filter_value('value', $this->value['value']);
207
    $comp_date = new DateObject($value, date_default_timezone(), $this->format);
208
    $field = $this->date_handler->sql_field($field, NULL, $comp_date);
209
    $field = $this->date_handler->sql_format($this->format, $field);
210
    $placeholder = $this->placeholder();
211
    $group = !empty($this->options['date_group']) ? $this->options['date_group'] : $this->options['group'];
212
    $this->query->add_where_expression($group, "$field $this->operator $placeholder", array($placeholder => $value));
213
  }
214

    
215
  /**
216
   * @todo
217
   */
218
  function op_contains($field) {
219
    // Add the delta field to the view so we can later find the value that
220
    // matched our query.
221
    list($table_name, $field_name) = explode('.', $field);
222
    if (!empty($this->options['add_delta']) && (substr($field_name, -6) == '_value' || substr($field_name, -7) == '_value2')) {
223
      $this->query->add_field($table_name, 'delta');
224
    }
225

    
226
    $value = $this->get_filter_value('value', $this->value['value']);
227
    $comp_date = new DateObject($value, date_default_timezone(), $this->format);
228
    $fields = date_views_fields($this->base_table);
229
    $fields = $fields['name'];
230
    $fromto = $fields[$field]['fromto'];
231
    $field_min = $this->date_handler->sql_field($fromto[0], NULL, $comp_date);
232
    $field_min = $this->date_handler->sql_format($this->format, $field_min);
233
    $field_max = $this->date_handler->sql_field($fromto[1], NULL, $comp_date);
234
    $field_max = $this->date_handler->sql_format($this->format, $field_max);
235
    $placeholder_min = $this->placeholder();
236
    $placeholder_max = $this->placeholder();
237
    $group = !empty($this->options['date_group']) ? $this->options['date_group'] : $this->options['group'];
238
    $this->query->add_where_expression($group, "$field_max >= $placeholder_min AND $field_min <= $placeholder_max", array($placeholder_min => $value, $placeholder_max => $value));
239
  }
240

    
241
  /**
242
   * {@inheritdoc}
243
   */
244
  function has_extra_options() {
245
    return TRUE;
246
  }
247

    
248
  /**
249
   * {@inheritdoc}
250
   */
251
  function widget_options() {
252
    $options = array(
253
      'date_select' => t('Select'),
254
      'date_text' => t('Text'),
255
      'date_popup' => t('Popup'),
256
      );
257
    if (!module_exists('date_popup')) {
258
      unset($options['date_popup']);
259
    }
260
    return $options;
261
  }
262

    
263
  /**
264
   * @todo
265
   */
266
  function year_range() {
267
    $year_range = explode(':', $this->options['year_range']);
268
    if (substr($this->options['year_range'], 0, 1) == '-' || $year_range[0] < 0) {
269
      $this_year = date_format(date_now(), 'Y');
270
      $year_range[0] = $this_year + $year_range[0];
271
      $year_range[1] = $this_year + $year_range[1];
272
    }
273
    return $year_range;
274
  }
275

    
276
  /**
277
   * {@inheritdoc}
278
   */
279
  function extra_options_form(&$form, &$form_state) {
280
    parent::extra_options_form($form, $form_state);
281
    $form['form_type'] = array(
282
      '#type' => 'radios',
283
      '#title' => t('Date selection form element'),
284
      '#default_value' => $this->options['form_type'],
285
      '#options' => $this->widget_options(),
286
      );
287

    
288
    $form['granularity'] = $this->date_handler->granularity_form($this->options['granularity']);
289
    $form['granularity']['#title'] = t('Filter granularity');
290

    
291
    $form['year_range'] = array(
292
      '#type' => 'date_year_range',
293
      '#default_value' => $this->options['year_range'],
294
    );
295

    
296
    if (!empty($this->definition['field_name'])) {
297
      $field = field_info_field($this->definition['field_name']);
298
    }
299
    $form['add_delta'] = array(
300
      '#type' => 'radios',
301
      '#title' => t('Add multiple value identifier'),
302
      '#default_value' => $this->options['add_delta'],
303
      '#options' => array('' => t('No'), 'yes' => t('Yes')),
304
      '#description' => t('Add an identifier to the view to show which multiple value date fields meet the filter criteria. Note: This option may introduce duplicate values into the view. Required when using multiple value fields in a Calendar or any time you want the node view of multiple value dates to display only the values that match the view filters.'),
305
      // Only let mere mortals tweak this setting for multi-value fields
306
      '#access' => !empty($field) ? $field['cardinality'] != 1 : 0,
307
    );
308
  }
309

    
310
  /**
311
   * {@inheritdoc}
312
   */
313
  function extra_options_validate($form, &$form_state) {
314
    if (!preg_match('/^(?:[\+\-][0-9]{1,4}|[0-9]{4}):(?:[\+\-][0-9]{1,4}|[0-9]{4})$/', $form_state['values']['options']['year_range'])) {
315
      form_error($form['year_range'], t('Date year range must be in the format -9:+9, 2005:2010, -9:2010, or 2005:+9'));
316
    }
317
  }
318

    
319
  /**
320
   * {@inheritdoc}
321
   */
322
  function value_form(&$form, &$form_state) {
323
    // We use different values than the parent form, so we must construct our
324
    // own form element.
325
    $form['value'] = array();
326
    $form['value']['#tree'] = TRUE;
327
    $form['value']['#id'] = 'date_views_exposed_filter-' . bin2hex(drupal_random_bytes(16));
328
    $form['value']['#type'] = 'container';
329
    if (module_exists('ctools')) {
330
      $form['value']['#pre_render'] = array('ctools_dependent_pre_render');
331
    }
332

    
333
    // Below section copied from views_handler_filter_numeric.inc.
334
    $which = 'all';
335
    $source = '';
336
    if (!empty($form['operator'])) {
337
      $source = ($form['operator']['#type'] == 'radios') ? 'radio:options[operator]' : 'edit-options-operator';
338
    }
339

    
340
    $identifier = $this->options['expose']['identifier'];
341
    if (!empty($form_state['exposed'])) {
342
      if (empty($this->options['expose']['use_operator']) || empty($this->options['expose']['operator_id'])) {
343
        // Exposed and locked.
344
        $which = in_array($this->operator, $this->operator_values(2)) ? 'minmax' : 'value';
345
      }
346
      else {
347
        $source = 'edit-' . drupal_html_id($this->options['expose']['operator_id']);
348
      }
349
    }
350

    
351
    if ($which == 'all' || $which == 'value') {
352
      $form['value'] += $this->date_parts_form($form_state, 'value', $source, $which, $this->operator_values(1), $identifier, 'default_date');
353
    }
354

    
355
    if ($which == 'all' || $which == 'minmax') {
356
      $form['value'] += $this->date_parts_form($form_state, 'min', $source, $which, $this->operator_values(2), $identifier, 'default_date');
357
      $form['value'] += $this->date_parts_form($form_state, 'max', $source, $which, $this->operator_values(2), $identifier, 'default_to_date');
358
    }
359

    
360
    // Add some extra validation for the select widget to be sure that the user
361
    // inputs all parts of the date.
362
    if ($this->options['form_type'] == 'date_select') {
363
      $form['value']['#element_validate'] = array('date_views_select_validate');
364
    }
365

    
366
  }
367

    
368
  /**
369
   * A form element to select date part values.
370
   *
371
   * @param string $prefix
372
   *   A prefix for the date values, 'value', 'min', or 'max' .
373
   * @param string $source
374
   *   The operator for this element.
375
   * @param string $which
376
   *   Which element to provide, 'all', 'value', or 'minmax' .
377
   * @param array $operator_values
378
   *   An array of the allowed operators for this element.
379
   * @param array $identifier
380
   *   Identifier of the exposed element.
381
   * @param array $relative_id
382
   *   Form element id to use for the relative date field.
383
   *
384
   * @return
385
   *   The form date part element for this instance.
386
   */
387
  function date_parts_form(&$form_state, $prefix, $source, $which, $operator_values, $identifier, $relative_id) {
388
    module_load_include('inc', 'date_api', 'date_api_elements');
389
    switch ($prefix) {
390
      case 'min':
391
        $label = t('Start date');
392
        $relative_label = t('Relative start date');
393
        break;
394

    
395
      case 'max':
396
        $label = t('End date');
397
        $relative_label = t('Relative end date');
398
        break;
399

    
400
      default:
401
        $label = '';
402
        $relative_label = t('Relative date');
403
    }
404

    
405
    $type = $this->options['form_type'];
406
    if ($type == 'date_popup' && !module_exists('date_popup')) {
407
      $type = 'date_text';
408
    }
409

    
410
    $format = $this->date_handler->views_formats($this->options['granularity'], 'display');
411
    $granularity = array_keys($this->date_handler->date_parts($this->options['granularity']));
412
    $relative_value = ($prefix == 'max' ? $this->options['default_to_date'] : $this->options['default_date']);
413

    
414
    if (!empty($form_state['exposed'])) {
415
      // UI when the date selector is exposed.
416
      $label = $this->options['expose']['label'];
417
      $default_date = $this->date_default_value($prefix);
418
      $id = 'edit-' . str_replace('_', '-', $this->field) . '-' . $prefix;
419
      $form[$prefix] = array(
420
        '#title' => check_plain($label),
421
        '#title_display' => 'invisible',
422
        '#type' => $type,
423
        '#size' => 20,
424
        '#default_value' => !empty($this->value[$prefix]) ? $this->value[$prefix] : $default_date,
425
        '#date_format' => date_limit_format($format, $granularity),
426
        '#date_label_position' => 'within',
427
        '#date_year_range' => $this->options['year_range'],
428
        '#process' => array($type . '_element_process'),
429
        '#prefix' => '<div id="' . $id . '-wrapper"><div id="' . $id . '-inside-wrapper">',
430
        '#suffix' => '</div></div>',
431
      );
432
      if ($which == 'all') {
433
        $form[$prefix]['#pre_render'][] = 'ctools_dependent_pre_render';
434
        $form[$prefix]['#dependency'] = array($source => $operator_values);
435
      }
436

    
437
      // Validate the input value; set form state input array.
438
      $input = isset($form_state['input'][$identifier][$prefix]) ? $form_state['input'][$identifier][$prefix] : array();
439
      $form_state['input'][$identifier][$prefix] = $this->input_validate($form[$prefix], $input);
440

    
441
      if (!isset($form_state['input'][$identifier][$prefix])) {
442
        // Handle bogus input from the query string to prevent fatal errors.
443
        if (isset($form_state['input'][$identifier]) && !is_array($form_state['input'][$identifier])) {
444
          $form_state['input'][$identifier] = array();
445
        }
446
        // Ensure these exist.
447
        foreach ($granularity as $key) {
448
          $form_state['input'][$identifier][$prefix][$key] = NULL;
449
        }
450
      }
451
    }
452
    else {
453
      // UI when the date selector is on the views configuration screen.
454
      $default_date = '';
455
      $id = 'edit-options-value-' . $prefix;
456
      $form[$prefix . '_group'] = array(
457
        '#type' => 'fieldset',
458
        '#attributes' => array('class' => array('date-views-filter-fieldset')),
459
      );
460
      $form[$prefix . '_group'][$prefix . '_choose_input_type'] = array(
461
        '#title' => check_plain($label),
462
        '#type' => 'select',
463
        '#options' => array('date' => t('Select a date'), 'relative' => ('Enter a relative date')),
464
        '#attributes' => array('class' => array($prefix . '-choose-input-type')),
465
        '#default_value' => !empty($relative_value) ? 'relative' : 'date',
466
      );
467
      $form[$prefix . '_group'][$prefix] = array(
468
        '#title' => t('Select a date'),
469
        '#type' => $type,
470
        '#size' => 20,
471
        '#default_value' => !empty($this->value[$prefix]) ? $this->value[$prefix] : $default_date,
472
        '#date_format' => date_limit_format($format, $granularity),
473
        '#date_label_position' => 'within',
474
        '#date_year_range' => $this->options['year_range'],
475
        '#process' => array($type . '_element_process'),
476
        '#prefix' => '<div id="' . $id . '-wrapper"><div id="' . $id . '-inside-wrapper">',
477
        '#suffix' => '</div></div>',
478
        '#states' => array(
479
          'visible' => array(
480
            ":input.{$prefix}-choose-input-type" => array('value' => 'date'),
481
          ),
482
        ),
483
      );
484
      $form[$prefix . '_group'][$relative_id] = array(
485
        '#type' => 'textfield',
486
        '#title' => check_plain($relative_label),
487
        '#default_value' => $relative_value,
488
        '#description' => t("Relative dates are computed when the view is displayed. Examples: now, now +1 day, 12AM today, Monday next week. <a href=\"@relative_format\">More examples of relative date formats in the PHP documentation</a>.", array('@relative_format' => 'http://www.php.net/manual/en/datetime.formats.relative.php')),
489
        '#states' => array(
490
          'visible' => array(
491
            ":input.{$prefix}-choose-input-type" => array('value' => 'relative'),
492
          ),
493
        ),
494
      );
495
      if ($which == 'all') {
496
        $form[$prefix . '_group']['#pre_render'][] = 'ctools_dependent_pre_render';
497
        $form[$prefix . '_group']['#dependency'] = array($source => $operator_values);
498
      }
499
    }
500
    return $form;
501
  }
502

    
503
  /**
504
   * Returns form state input array appropriate to missing, valid, and invalid input.
505
   */
506
  function input_validate($element, $input) {
507
    if (!$input) {
508
      // No input value (e.g. initial form load), set value to NULL so Form API
509
      // calls the element value_callback routine with FALSE to set the '#value'
510
      // property from the '#default_value' property.
511
      // See _form_builder_handle_input_element().
512
      if ($element['#type'] != 'date_select') {
513
        return array('date' => NULL);
514
      }
515
      $granularity = date_format_order($element['#date_format']);
516
      if ($key = array_search('timezone', $granularity)) {
517
        unset($granularity[$key]);
518
      }
519
      return array_fill_keys($granularity, NULL);
520
    }
521

    
522
    // Include element defaults to avoid notices in the xxx_input_date routines.
523
    // Copied from form_builder() in form.inc.
524
    if (isset($element['#type']) && empty($element['#defaults_loaded']) && ($info = element_info($element['#type']))) {
525
      // Overlay $info onto $element, retaining preexisting keys in $element.
526
      $element += $info;
527
      $element['#defaults_loaded'] = TRUE;
528
    }
529

    
530
    $date = NULL;
531
    $function = "{$element['#type']}_input_date";
532
    if (($date = $function($element, $input)) && date_is_date($date)) {
533
      // The input is valid including being in the expected format.
534
      return $input;
535
    }
536

    
537
    if (is_object($date)) {
538
      // Input may not meet the granularity and format but is recognizable.
539
      return $input;
540
    }
541

    
542
    // Input is bogus, return empty array in granularity format.
543
    if ($element['#type'] != 'date_select') {
544
      return array('date' => '');
545
    }
546

    
547
    $granularity = date_format_order($element['#date_format']);
548
    if ($key = array_search('timezone', $granularity)) {
549
      unset($granularity[$key]);
550
    }
551
    return array_fill_keys($granularity, '');
552
  }
553

    
554
  /**
555
   * Value validation.
556
   *
557
   * @todo Add in more validation.
558
   *
559
   * We are setting an extra option using a value form because it makes more
560
   * sense to set it there. That's not the normal method, so we have to manually
561
   * transfer the selected value back to the option.
562
   */
563
  function value_validate($form, &$form_state) {
564
    $options = &$form_state['values']['options'];
565

    
566
    if ($options['operator'] == 'between' || $options['operator'] == 'not between') {
567
      if ($options['value']['min_group']['min_choose_input_type'] == 'relative') {
568
        if (empty($options['value']['min_group']['default_date'])) {
569
          form_set_error('options][value][min_group][default_date', t('Relative start date not specified.'));
570
        }
571
        else {
572
          $this->options['default_date'] = $options['value']['min_group']['default_date'];
573
          // NULL out the value field, user wanted the relative value to take
574
          // hold.
575
          $options['value']['min_group']['min'] = NULL;
576
        }
577
      }
578
      // If an absolute date was used, be sure to wipe the relative date.
579
      else {
580
        $this->options['default_date'] = '';
581
      }
582
      if ($options['value']['max_group']['max_choose_input_type'] == 'relative') {
583
        if (empty($options['value']['max_group']['default_to_date'])) {
584
          form_set_error('options][value][max_group][default_to_date', t('Relative end date not specified.'));
585
        }
586
        else {
587
          $this->options['default_to_date'] = $options['value']['max_group']['default_to_date'];
588
          // NULL out the value field, user wanted the relative value to take
589
          // hold.
590
          $options['value']['max_group']['max'] = NULL;
591
        }
592
      }
593
      // If an absolute date was used, be sure to wipe the relative date.
594
      else {
595
        $this->options['default_to_date'] = '';
596
      }
597
    }
598
    elseif (in_array($options['operator'], array('<', '<=', '=', '!=', '>=', '>'))) {
599
      if ($options['value']['value_group']['value_choose_input_type'] == 'relative') {
600
        if (empty($options['value']['value_group']['default_date'])) {
601
          form_set_error('options][value][value_group][default_date', t('Relative date not specified.'));
602
        }
603
        else {
604
          $this->options['default_date'] = $options['value']['value_group']['default_date'];
605
          // NULL out the value field, user wanted the relative value to take
606
          // hold.
607
          $options['value']['value_group']['value'] = NULL;
608
        }
609
      }
610
      // If an absolute date was used, be sure to wipe the relative date.
611
      else {
612
        $this->options['default_date'] = '';
613
      }
614
    }
615
    // Flatten the form structure for views, so the values can be saved.
616
    foreach (array('value', 'min', 'max') as $key) {
617
      $options['value'][$key] = $options['value'][$key . '_group'][$key];
618
    }
619
  }
620

    
621
  /**
622
   * Validate that the time values convert to something usable.
623
   */
624
  function validate_valid_time(&$form, $operator, $value) {
625
    // Override the core date filter validation.
626
    // Our date widgets do their own validation.
627
  }
628

    
629
  /**
630
   * {@inheritdoc}
631
   */
632
  function admin_summary() {
633
    $parts = $this->date_handler->date_parts();
634
    $widget_options = $this->widget_options();
635
    // If the filter is exposed, display the granularity.
636
    if ($this->options['exposed']) {
637
      return t('<strong>Exposed</strong> @widget @format', array('@format' => $parts[$this->date_handler->granularity], '@widget' => $widget_options[$this->options['form_type']]));
638
    }
639
    // If not exposed, display the value.
640
    $output = '';
641
    if (in_array($this->operator, $this->operator_values(2))) {
642
      $min = check_plain(!empty($this->options['default_date']) ? $this->options['default_date'] : $this->options['value']['min']);
643
      $max = check_plain(!empty($this->options['default_to_date']) ? $this->options['default_to_date'] : $this->options['value']['max']);
644
      $output .= t('@min and @max', array('@min' => $min, '@max' => $max));
645
    }
646
    else {
647
      $output .= check_plain(!empty($this->options['default_date']) ? $this->options['default_date'] : $this->options['value']['value']);
648
    }
649
    return $output;
650
  }
651

    
652
}