|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Carbon_Fields\Field; |
|
4
|
|
|
|
|
5
|
|
|
use Carbon_Fields\Value_Set\Value_Set; |
|
6
|
|
|
|
|
7
|
|
|
/** |
|
8
|
|
|
* Relationship field class. |
|
9
|
|
|
* Allows selecting and manually sorting entries from any custom post type. |
|
10
|
|
|
*/ |
|
11
|
|
|
class Relationship_Field extends Field { |
|
12
|
|
|
protected $post_type = array( 'post' ); |
|
13
|
|
|
|
|
14
|
|
|
protected $max = -1; |
|
15
|
|
|
|
|
16
|
|
|
protected $allow_duplicates = false; |
|
17
|
|
|
|
|
18
|
|
|
/** |
|
19
|
|
|
* Default field value |
|
20
|
|
|
* |
|
21
|
|
|
* @var array |
|
22
|
|
|
*/ |
|
23
|
|
|
protected $default_value = array(); |
|
24
|
|
|
|
|
25
|
|
|
/** |
|
26
|
|
|
* Create a field from a certain type with the specified label. |
|
27
|
|
|
* @param string $name Field name |
|
28
|
|
|
* @param string $label Field label |
|
29
|
|
|
*/ |
|
30
|
|
|
protected function __construct( $name, $label ) { |
|
31
|
|
|
$this->value = new Value_Set( Value_Set::TYPE_MULTIPLE_VALUES ); |
|
32
|
|
|
parent::__construct( $name, $label ); |
|
33
|
|
|
} |
|
34
|
|
|
|
|
35
|
|
|
/** |
|
36
|
|
|
* Admin initialization actions |
|
37
|
|
|
*/ |
|
38
|
|
|
public function admin_init() { |
|
39
|
|
|
$this->add_template( $this->get_type() . '_item', array( $this, 'item_template' ) ); |
|
40
|
|
|
|
|
41
|
|
|
parent::admin_init(); |
|
42
|
|
|
} |
|
43
|
|
|
|
|
44
|
|
|
/** |
|
45
|
|
|
* Load the field value from an input array based on it's name |
|
46
|
|
|
* |
|
47
|
|
|
* @param array $input (optional) Array of field names and values. Defaults to $_POST |
|
48
|
|
|
**/ |
|
49
|
|
|
public function set_value_from_input( $input = null ) { |
|
50
|
|
|
if ( is_null( $input ) ) { |
|
51
|
|
|
$input = $_POST; |
|
|
|
|
|
|
52
|
|
|
} |
|
53
|
|
|
|
|
54
|
|
|
$value = array(); |
|
55
|
|
|
if ( isset( $input[ $this->get_name() ] ) ) { |
|
56
|
|
|
$value = stripslashes_deep( $input[ $this->get_name() ] ); |
|
57
|
|
|
if ( is_array( $value ) ) { |
|
58
|
|
|
$value = array_values( $value ); |
|
59
|
|
|
} |
|
60
|
|
|
} |
|
61
|
|
|
$this->set_value( $value ); |
|
62
|
|
|
} |
|
63
|
|
|
|
|
64
|
|
|
/** |
|
65
|
|
|
* Set the post type of the entries. |
|
66
|
|
|
* |
|
67
|
|
|
* @param string|array $post_type Post type |
|
68
|
|
|
*/ |
|
69
|
|
|
public function set_post_type( $post_type ) { |
|
70
|
|
|
if ( ! is_array( $post_type ) ) { |
|
71
|
|
|
$post_type = array( $post_type ); |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
$this->post_type = $post_type; |
|
75
|
|
|
return $this; |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
|
|
/** |
|
79
|
|
|
* Set the maximum allowed number of selected entries. |
|
80
|
|
|
* |
|
81
|
|
|
* @param int $max |
|
82
|
|
|
*/ |
|
83
|
|
|
public function set_max( $max ) { |
|
84
|
|
|
$this->max = intval( $max ); |
|
85
|
|
|
return $this; |
|
86
|
|
|
} |
|
87
|
|
|
|
|
88
|
|
|
/** |
|
89
|
|
|
* Specify whether to allow each entry to be selected multiple times. |
|
90
|
|
|
* |
|
91
|
|
|
* @param boolean $allow |
|
92
|
|
|
*/ |
|
93
|
|
|
public function allow_duplicates( $allow = true ) { |
|
94
|
|
|
$this->allow_duplicates = (bool) $allow; |
|
95
|
|
|
return $this; |
|
96
|
|
|
} |
|
97
|
|
|
|
|
98
|
|
|
/** |
|
99
|
|
|
* Used to get the title of an item. |
|
100
|
|
|
* |
|
101
|
|
|
* Can be overriden or extended by the `carbon_relationship_title` filter. |
|
102
|
|
|
* |
|
103
|
|
|
* @param int $id The database ID of the item. |
|
104
|
|
|
* @param string $type Item type (post, term, user, comment, or a custom one). |
|
105
|
|
|
* @param string $subtype The subtype - "page", "post", "category", etc. |
|
106
|
|
|
* @return string $title The title of the item. |
|
107
|
|
|
*/ |
|
108
|
|
|
protected function get_title_by_type( $id, $type, $subtype = '' ) { |
|
109
|
|
|
$title = get_the_title( $id ); |
|
110
|
|
|
if ( ! $title ) { |
|
111
|
|
|
$title = '(no title) - ID: ' . $id; |
|
112
|
|
|
} |
|
113
|
|
|
|
|
114
|
|
|
/** |
|
115
|
|
|
* Filter the title of the relationship item. |
|
116
|
|
|
* |
|
117
|
|
|
* @param string $title The unfiltered item title. |
|
118
|
|
|
* @param string $name Name of the relationship field. |
|
119
|
|
|
* @param int $id The database ID of the item. |
|
120
|
|
|
* @param string $type Item type (post, term, user, comment, or a custom one). |
|
121
|
|
|
* @param string $subtype Subtype - "page", "post", "category", etc. |
|
122
|
|
|
*/ |
|
123
|
|
|
return apply_filters( 'carbon_relationship_title', $title, $this->get_name(), $id, $type, $subtype ); |
|
124
|
|
|
} |
|
125
|
|
|
|
|
126
|
|
|
/** |
|
127
|
|
|
* Used to get the label of an item. |
|
128
|
|
|
* |
|
129
|
|
|
* Can be overriden or extended by the `carbon_relationship_item_label` filter. |
|
130
|
|
|
* |
|
131
|
|
|
* @param int $id The database ID of the item. |
|
132
|
|
|
* @param string $type Item type (post, term, user, comment, or a custom one). |
|
133
|
|
|
* @param string $subtype Subtype - "page", "post", "category", etc. |
|
134
|
|
|
* @return string $label The label of the item. |
|
135
|
|
|
*/ |
|
136
|
|
|
protected function get_item_label( $id, $type, $subtype = '' ) { |
|
137
|
|
|
$object = get_post_type_object( $subtype ); |
|
138
|
|
|
$label = $object ? $object->labels->singular_name : null; |
|
139
|
|
|
|
|
140
|
|
|
/** |
|
141
|
|
|
* Filter the label of the relationship item. |
|
142
|
|
|
* |
|
143
|
|
|
* @param string $label The unfiltered item label. |
|
144
|
|
|
* @param string $name Name of the relationship field. |
|
145
|
|
|
* @param int $id The database ID of the item. |
|
146
|
|
|
* @param string $type Item type (post, term, user, comment, or a custom one). |
|
147
|
|
|
* @param string $subtype Subtype - "page", "post", "category", etc. |
|
148
|
|
|
*/ |
|
149
|
|
|
return apply_filters( 'carbon_relationship_item_label', $label, $this->get_name(), $id, $type, $subtype ); |
|
150
|
|
|
} |
|
151
|
|
|
|
|
152
|
|
|
/** |
|
153
|
|
|
* Generate the item options for the relationship field. |
|
154
|
|
|
* |
|
155
|
|
|
* @return array $options The selectable options of the relationship field. |
|
156
|
|
|
*/ |
|
157
|
|
|
public function get_options() { |
|
158
|
|
|
$options = array(); |
|
159
|
|
|
/** |
|
160
|
|
|
* Filter the default query when fetching posts for a particular field. |
|
161
|
|
|
* |
|
162
|
|
|
* @param array $args The parameters, passed to get_posts(). |
|
163
|
|
|
*/ |
|
164
|
|
|
foreach ( $this->post_type as $post_type ) { |
|
165
|
|
|
$filter_name = 'carbon_relationship_options_' . $this->get_name() . '_post_' . $post_type; |
|
166
|
|
|
$args = apply_filters( $filter_name, array( |
|
167
|
|
|
'post_type' => $post_type, |
|
168
|
|
|
'posts_per_page' => -1, |
|
|
|
|
|
|
169
|
|
|
'fields' => 'ids', |
|
170
|
|
|
'suppress_filters' => false, |
|
171
|
|
|
) ); |
|
172
|
|
|
|
|
173
|
|
|
// fetch and prepare posts as relationship items |
|
174
|
|
|
$new_options = get_posts( $args ); |
|
175
|
|
|
foreach ( $new_options as &$p ) { |
|
176
|
|
|
$p = array( |
|
177
|
|
|
'id' => $p, |
|
178
|
|
|
'title' => $this->get_title_by_type( $p, 'post', $post_type ), |
|
179
|
|
|
'type' => 'post', |
|
180
|
|
|
'subtype' => $post_type, |
|
181
|
|
|
'label' => $this->get_item_label( $p, 'post', $post_type ), |
|
182
|
|
|
'is_trashed' => ( get_post_status( $p ) == 'trash' ), |
|
183
|
|
|
'edit_link' => get_edit_post_link( $p ), |
|
184
|
|
|
); |
|
185
|
|
|
} |
|
186
|
|
|
|
|
187
|
|
|
$options = array_merge( $options, $new_options ); |
|
188
|
|
|
} |
|
189
|
|
|
|
|
190
|
|
|
/** |
|
191
|
|
|
* Filter the final list of options, available to a certain relationship field. |
|
192
|
|
|
* |
|
193
|
|
|
* @param array $options Unfiltered options items. |
|
194
|
|
|
* @param string $name Name of the relationship field. |
|
195
|
|
|
*/ |
|
196
|
|
|
$options = apply_filters( 'carbon_relationship_options', $options, $this->get_name() ); |
|
197
|
|
|
|
|
198
|
|
|
return $options; |
|
199
|
|
|
} |
|
200
|
|
|
|
|
201
|
|
|
/** |
|
202
|
|
|
* Returns an array that holds the field data, suitable for JSON representation. |
|
203
|
|
|
* This data will be available in the Underscore template and the Backbone Model. |
|
204
|
|
|
* |
|
205
|
|
|
* @param bool $load Should the value be loaded from the database or use the value from the current instance. |
|
206
|
|
|
* @return array |
|
207
|
|
|
*/ |
|
208
|
|
|
public function to_json( $load ) { |
|
209
|
|
|
$field_data = parent::to_json( $load ); |
|
210
|
|
|
|
|
211
|
|
|
$field_data['nextfieldIndex'] = 0; |
|
212
|
|
|
if ( ! empty( $field_data['value'] ) ) { |
|
213
|
|
|
$value = array(); |
|
214
|
|
|
|
|
215
|
|
|
$field_data['value'] = maybe_unserialize( $field_data['value'] ); |
|
216
|
|
|
$i = 0; |
|
217
|
|
|
foreach ( $field_data['value'] as $single_value ) { |
|
218
|
|
|
$post_type = get_post_type( $single_value ); |
|
219
|
|
|
$value[] = array( |
|
220
|
|
|
'id' => $single_value, |
|
221
|
|
|
'title' => $this->get_title_by_type( $single_value, 'post', $post_type ), |
|
222
|
|
|
'type' => 'post', |
|
223
|
|
|
'subtype' => $post_type, |
|
224
|
|
|
'label' => $this->get_item_label( $single_value, 'post', $post_type ), |
|
225
|
|
|
'is_trashed' => ( get_post_status( $single_value ) == 'trash' ), |
|
226
|
|
|
'fieldIndex' => $i, |
|
227
|
|
|
); |
|
228
|
|
|
$i++; |
|
229
|
|
|
} |
|
230
|
|
|
$field_data['nextfieldIndex'] = $i; |
|
231
|
|
|
$field_data['value'] = $value; |
|
232
|
|
|
} |
|
233
|
|
|
|
|
234
|
|
|
$field_data = array_merge( $field_data, array( |
|
235
|
|
|
'options' => $this->get_options(), |
|
236
|
|
|
'max' => $this->max, |
|
237
|
|
|
'allow_duplicates' => $this->allow_duplicates, |
|
238
|
|
|
) ); |
|
239
|
|
|
|
|
240
|
|
|
return $field_data; |
|
241
|
|
|
} |
|
242
|
|
|
|
|
243
|
|
|
/** |
|
244
|
|
|
* The main Underscore template of this field. |
|
245
|
|
|
*/ |
|
246
|
|
|
public function template() { |
|
247
|
|
|
?> |
|
248
|
|
|
<div class="carbon-relationship-container"> |
|
249
|
|
|
<div class="selected-items-container"> |
|
250
|
|
|
<strong> |
|
251
|
|
|
<# |
|
252
|
|
|
var selected_items_length = 0; |
|
253
|
|
|
if ( value ) { |
|
254
|
|
|
selected_items_length = value.length; |
|
255
|
|
|
} #> |
|
256
|
|
|
<span class="selected-counter">{{{ selected_items_length }}}</span> |
|
257
|
|
|
<span class="selected-label" data-single-label="<?php _e( 'selected item', \Carbon_Fields\TEXT_DOMAIN ); ?>" data-plural-label="<?php _e( 'selected items', \Carbon_Fields\TEXT_DOMAIN ); ?>"> |
|
258
|
|
|
<?php _e( 'selected items', \Carbon_Fields\TEXT_DOMAIN ); ?> |
|
259
|
|
|
</span> |
|
260
|
|
|
|
|
261
|
|
|
<?php |
|
262
|
|
|
/* If set_max() has been set, show the allowed maximum items number */ |
|
263
|
|
|
?> |
|
264
|
|
|
<# if ( max !== -1 ) { #> |
|
265
|
|
|
<span class="remaining"><?php _e( 'out of', \Carbon_Fields\TEXT_DOMAIN ); ?> {{{ max }}}</span> |
|
266
|
|
|
<# } #> |
|
267
|
|
|
</strong> |
|
268
|
|
|
</div> |
|
269
|
|
|
|
|
270
|
|
|
<div class="search-field carbon-relationship-search dashicons-before dashicons-search"> |
|
271
|
|
|
<input type="text" class="search-field" placeholder="<?php esc_attr_e( 'Search...', \Carbon_Fields\TEXT_DOMAIN ); ?>" /> |
|
272
|
|
|
</div> |
|
273
|
|
|
|
|
274
|
|
|
<div class="carbon-relationship-body"> |
|
275
|
|
|
<div class="carbon-relationship-left"> |
|
276
|
|
|
<ul class="carbon-relationship-list"> |
|
277
|
|
|
<# if (options) { #> |
|
278
|
|
|
<# _.each(options, function(item) { #> |
|
279
|
|
|
<?php echo $this->item_template( false ); ?> |
|
280
|
|
|
<# }); #> |
|
281
|
|
|
<# } #> |
|
282
|
|
|
</ul> |
|
283
|
|
|
</div> |
|
284
|
|
|
|
|
285
|
|
|
<div class="carbon-relationship-right"> |
|
286
|
|
|
<label><?php _e( 'Associated:', \Carbon_Fields\TEXT_DOMAIN ); ?></label> |
|
287
|
|
|
|
|
288
|
|
|
<ul class="carbon-relationship-list"> |
|
289
|
|
|
<# if (value) { #> |
|
290
|
|
|
<# _.each(value, function(item) { #> |
|
291
|
|
|
<?php echo $this->item_template(); ?> |
|
292
|
|
|
<# }); #> |
|
293
|
|
|
<# } #> |
|
294
|
|
|
</ul> |
|
295
|
|
|
</div> |
|
296
|
|
|
</div> |
|
297
|
|
|
</div> |
|
298
|
|
|
<?php |
|
299
|
|
|
} |
|
300
|
|
|
|
|
301
|
|
|
/** |
|
302
|
|
|
* Serves as a Underscore template for the relationship items. |
|
303
|
|
|
* Used for both the selected and the selectable options. |
|
304
|
|
|
* |
|
305
|
|
|
* @param bool $display_input Whether to display the selected item input field. |
|
306
|
|
|
*/ |
|
307
|
|
|
public function item_template( $display_input = true ) { |
|
308
|
|
|
?> |
|
309
|
|
|
<li> |
|
310
|
|
|
<span class="mobile-handle dashicons-before dashicons-menu"></span> |
|
311
|
|
|
<a href="#" data-item-id="{{{ item.id }}}" data-item-title="{{{ item.title }}}" data-item-type="{{{ item.type }}}" data-item-subtype="{{{ item.subtype }}}" data-item-label="{{{ item.label }}}" data-value="{{{ item.id }}}"> |
|
312
|
|
|
<# if ( item.edit_link ) { #> |
|
313
|
|
|
<em class="edit-link dashicons-before dashicons-edit" data-href="{{{ item.edit_link }}}"><?php _e( 'Edit', \Carbon_Fields\TEXT_DOMAIN ); ?></em> |
|
314
|
|
|
<# } #> |
|
315
|
|
|
<em>{{{ item.label }}}</em> |
|
316
|
|
|
<span class="dashicons-before dashicons-plus-alt"></span> |
|
317
|
|
|
|
|
318
|
|
|
{{{ item.title }}} |
|
319
|
|
|
</a> |
|
320
|
|
|
<?php if ( $display_input ) : ?> |
|
321
|
|
|
<input type="hidden" name="{{{ name }}}[{{{ item.fieldIndex }}}]" value="{{{ item.id }}}" /> |
|
322
|
|
|
<?php endif; ?> |
|
323
|
|
|
</li> |
|
324
|
|
|
<?php |
|
325
|
|
|
} |
|
326
|
|
|
} |
|
327
|
|
|
|