|
1
|
<?php
|
|
2
|
|
|
3
|
/**
|
|
4
|
* @file
|
|
5
|
* Definition of views_handler_filter_fields_compare.
|
|
6
|
*/
|
|
7
|
|
|
8
|
/**
|
|
9
|
* A handler to filter a view using fields comparison.
|
|
10
|
*
|
|
11
|
* @ingroup views_filter_handlers
|
|
12
|
*/
|
|
13
|
class views_handler_filter_fields_compare extends views_handler_filter {
|
|
14
|
|
|
15
|
/**
|
|
16
|
* {@inheritdoc}
|
|
17
|
*/
|
|
18
|
public function can_expose() {
|
|
19
|
return FALSE;
|
|
20
|
}
|
|
21
|
|
|
22
|
/**
|
|
23
|
* {@inheritdoc}
|
|
24
|
*/
|
|
25
|
public function option_definition() {
|
|
26
|
$options = parent::option_definition();
|
|
27
|
|
|
28
|
$options['left_field'] = $options['right_field'] = array('default' => '');
|
|
29
|
|
|
30
|
return $options;
|
|
31
|
}
|
|
32
|
|
|
33
|
/**
|
|
34
|
* Provide a list of all operators.
|
|
35
|
*/
|
|
36
|
public function fields_operator_options() {
|
|
37
|
return array(
|
|
38
|
'<' => t('Is less than'),
|
|
39
|
'<=' => t('Is less than or equal to'),
|
|
40
|
'=' => t('Is equal to'),
|
|
41
|
'<>' => t('Is not equal to'),
|
|
42
|
'>=' => t('Is greater than or equal to'),
|
|
43
|
'>' => t('Is greater than'),
|
|
44
|
);
|
|
45
|
}
|
|
46
|
|
|
47
|
/**
|
|
48
|
* Provide a list of available fields.
|
|
49
|
*/
|
|
50
|
public function field_options() {
|
|
51
|
$options = array();
|
|
52
|
|
|
53
|
$field_handlers = $this->view->display_handler->get_handlers('field');
|
|
54
|
foreach ($field_handlers as $field => $handler) {
|
|
55
|
if ($handler->table != 'views') {
|
|
56
|
$options[$field] = $handler->ui_name();
|
|
57
|
}
|
|
58
|
}
|
|
59
|
|
|
60
|
return $options;
|
|
61
|
}
|
|
62
|
|
|
63
|
/**
|
|
64
|
* {@inheritdoc}
|
|
65
|
*/
|
|
66
|
public function options_form(&$form, &$form_state) {
|
|
67
|
parent::options_form($form, $form_state);
|
|
68
|
|
|
69
|
$field_options = $this->field_options();
|
|
70
|
|
|
71
|
$form['left_field'] = array(
|
|
72
|
'#type' => 'select',
|
|
73
|
'#title' => t('Left field'),
|
|
74
|
'#default_value' => $this->options['left_field'],
|
|
75
|
'#options' => $field_options,
|
|
76
|
'#weight' => -3,
|
|
77
|
);
|
|
78
|
|
|
79
|
$form['operator'] = array(
|
|
80
|
'#type' => 'select',
|
|
81
|
'#title' => t('Operator'),
|
|
82
|
'#default_value' => $this->options['operator'],
|
|
83
|
'#options' => $this->fields_operator_options(),
|
|
84
|
'#weight' => -2,
|
|
85
|
);
|
|
86
|
|
|
87
|
$form['right_field'] = array(
|
|
88
|
'#type' => 'select',
|
|
89
|
'#title' => t('Right field'),
|
|
90
|
'#default_value' => $this->options['right_field'],
|
|
91
|
'#options' => $field_options,
|
|
92
|
'#weight' => -1,
|
|
93
|
);
|
|
94
|
|
|
95
|
}
|
|
96
|
|
|
97
|
/**
|
|
98
|
* {@inheritdoc}
|
|
99
|
*/
|
|
100
|
public function query() {
|
|
101
|
// Build extra condition from existing fields (from existing joins).
|
|
102
|
$left = $this->options['left_field'];
|
|
103
|
$right = $this->options['right_field'];
|
|
104
|
|
|
105
|
// Get all existing field handlers.
|
|
106
|
$field_handlers = $this->view->display_handler->get_handlers('field');
|
|
107
|
|
|
108
|
// Make sure the selected fields still exist.
|
|
109
|
if (!isset($field_handlers[$left], $field_handlers[$right])) {
|
|
110
|
return;
|
|
111
|
}
|
|
112
|
|
|
113
|
// Get the left table and field.
|
|
114
|
$left_handler = $field_handlers[$left];
|
|
115
|
$left_handler->set_relationship();
|
|
116
|
$left_table_alias = $this->query->ensure_table($left_handler->table, $left_handler->relationship);
|
|
117
|
|
|
118
|
// Get the left table and field.
|
|
119
|
$right_handler = $field_handlers[$right];
|
|
120
|
$right_handler->set_relationship();
|
|
121
|
$right_table_alias = $this->query->ensure_table($right_handler->table, $right_handler->relationship);
|
|
122
|
|
|
123
|
// Build piece of SQL.
|
|
124
|
$snippet = $left_table_alias . '.' . $left_handler->real_field
|
|
125
|
. ' ' . $this->options['operator'] . ' '
|
|
126
|
. $right_table_alias . '.' . $right_handler->real_field;
|
|
127
|
|
|
128
|
$this->query->add_where_expression($this->options['group'], $snippet);
|
|
129
|
}
|
|
130
|
|
|
131
|
/**
|
|
132
|
* {@inheritdoc}
|
|
133
|
*/
|
|
134
|
public function admin_summary() {
|
|
135
|
return check_plain(
|
|
136
|
$this->options['left_field'] . ' '
|
|
137
|
. $this->options['operator'] . ' '
|
|
138
|
. $this->options['right_field']
|
|
139
|
);
|
|
140
|
}
|
|
141
|
|
|
142
|
}
|
