|
1
|
<?php
|
|
2
|
|
|
3
|
/**
|
|
4
|
* @file
|
|
5
|
* Install, update and uninstall functions for the search module.
|
|
6
|
*/
|
|
7
|
|
|
8
|
/**
|
|
9
|
* Implements hook_uninstall().
|
|
10
|
*/
|
|
11
|
function search_uninstall() {
|
|
12
|
variable_del('minimum_word_size');
|
|
13
|
variable_del('overlap_cjk');
|
|
14
|
variable_del('search_cron_limit');
|
|
15
|
}
|
|
16
|
|
|
17
|
/**
|
|
18
|
* Implements hook_schema().
|
|
19
|
*/
|
|
20
|
function search_schema() {
|
|
21
|
$schema['search_dataset'] = array(
|
|
22
|
'description' => 'Stores items that will be searched.',
|
|
23
|
'fields' => array(
|
|
24
|
'sid' => array(
|
|
25
|
'type' => 'int',
|
|
26
|
'unsigned' => TRUE,
|
|
27
|
'not null' => TRUE,
|
|
28
|
'default' => 0,
|
|
29
|
'description' => 'Search item ID, e.g. node ID for nodes.',
|
|
30
|
),
|
|
31
|
'type' => array(
|
|
32
|
'type' => 'varchar',
|
|
33
|
'length' => 16,
|
|
34
|
'not null' => TRUE,
|
|
35
|
'description' => 'Type of item, e.g. node.',
|
|
36
|
),
|
|
37
|
'data' => array(
|
|
38
|
'type' => 'text',
|
|
39
|
'not null' => TRUE,
|
|
40
|
'size' => 'big',
|
|
41
|
'description' => 'List of space-separated words from the item.',
|
|
42
|
),
|
|
43
|
'reindex' => array(
|
|
44
|
'type' => 'int',
|
|
45
|
'unsigned' => TRUE,
|
|
46
|
'not null' => TRUE,
|
|
47
|
'default' => 0,
|
|
48
|
'description' => 'Set to force node reindexing.',
|
|
49
|
),
|
|
50
|
),
|
|
51
|
'primary key' => array('sid', 'type'),
|
|
52
|
);
|
|
53
|
|
|
54
|
$schema['search_index'] = array(
|
|
55
|
'description' => 'Stores the search index, associating words, items and scores.',
|
|
56
|
'fields' => array(
|
|
57
|
'word' => array(
|
|
58
|
'type' => 'varchar',
|
|
59
|
'length' => 50,
|
|
60
|
'not null' => TRUE,
|
|
61
|
'default' => '',
|
|
62
|
'description' => 'The {search_total}.word that is associated with the search item.',
|
|
63
|
),
|
|
64
|
'sid' => array(
|
|
65
|
'type' => 'int',
|
|
66
|
'unsigned' => TRUE,
|
|
67
|
'not null' => TRUE,
|
|
68
|
'default' => 0,
|
|
69
|
'description' => 'The {search_dataset}.sid of the searchable item to which the word belongs.',
|
|
70
|
),
|
|
71
|
'type' => array(
|
|
72
|
'type' => 'varchar',
|
|
73
|
'length' => 16,
|
|
74
|
'not null' => TRUE,
|
|
75
|
'description' => 'The {search_dataset}.type of the searchable item to which the word belongs.',
|
|
76
|
),
|
|
77
|
'score' => array(
|
|
78
|
'type' => 'float',
|
|
79
|
'not null' => FALSE,
|
|
80
|
'description' => 'The numeric score of the word, higher being more important.',
|
|
81
|
),
|
|
82
|
),
|
|
83
|
'indexes' => array(
|
|
84
|
'sid_type' => array('sid', 'type'),
|
|
85
|
),
|
|
86
|
'foreign keys' => array(
|
|
87
|
'search_dataset' => array(
|
|
88
|
'table' => 'search_dataset',
|
|
89
|
'columns' => array(
|
|
90
|
'sid' => 'sid',
|
|
91
|
'type' => 'type',
|
|
92
|
),
|
|
93
|
),
|
|
94
|
),
|
|
95
|
'primary key' => array('word', 'sid', 'type'),
|
|
96
|
);
|
|
97
|
|
|
98
|
$schema['search_total'] = array(
|
|
99
|
'description' => 'Stores search totals for words.',
|
|
100
|
'fields' => array(
|
|
101
|
'word' => array(
|
|
102
|
'description' => 'Primary Key: Unique word in the search index.',
|
|
103
|
'type' => 'varchar',
|
|
104
|
'length' => 50,
|
|
105
|
'not null' => TRUE,
|
|
106
|
'default' => '',
|
|
107
|
),
|
|
108
|
'count' => array(
|
|
109
|
'description' => "The count of the word in the index using Zipf's law to equalize the probability distribution.",
|
|
110
|
'type' => 'float',
|
|
111
|
'not null' => FALSE,
|
|
112
|
),
|
|
113
|
),
|
|
114
|
'primary key' => array('word'),
|
|
115
|
);
|
|
116
|
|
|
117
|
$schema['search_node_links'] = array(
|
|
118
|
'description' => 'Stores items (like nodes) that link to other nodes, used to improve search scores for nodes that are frequently linked to.',
|
|
119
|
'fields' => array(
|
|
120
|
'sid' => array(
|
|
121
|
'type' => 'int',
|
|
122
|
'unsigned' => TRUE,
|
|
123
|
'not null' => TRUE,
|
|
124
|
'default' => 0,
|
|
125
|
'description' => 'The {search_dataset}.sid of the searchable item containing the link to the node.',
|
|
126
|
),
|
|
127
|
'type' => array(
|
|
128
|
'type' => 'varchar',
|
|
129
|
'length' => 16,
|
|
130
|
'not null' => TRUE,
|
|
131
|
'default' => '',
|
|
132
|
'description' => 'The {search_dataset}.type of the searchable item containing the link to the node.',
|
|
133
|
),
|
|
134
|
'nid' => array(
|
|
135
|
'type' => 'int',
|
|
136
|
'unsigned' => TRUE,
|
|
137
|
'not null' => TRUE,
|
|
138
|
'default' => 0,
|
|
139
|
'description' => 'The {node}.nid that this item links to.',
|
|
140
|
),
|
|
141
|
'caption' => array(
|
|
142
|
'type' => 'text',
|
|
143
|
'size' => 'big',
|
|
144
|
'not null' => FALSE,
|
|
145
|
'description' => 'The text used to link to the {node}.nid.',
|
|
146
|
),
|
|
147
|
),
|
|
148
|
'primary key' => array('sid', 'type', 'nid'),
|
|
149
|
'indexes' => array(
|
|
150
|
'nid' => array('nid'),
|
|
151
|
),
|
|
152
|
);
|
|
153
|
|
|
154
|
return $schema;
|
|
155
|
}
|
|
156
|
|
|
157
|
/**
|
|
158
|
* Replace unique keys in 'search_dataset' and 'search_index' by primary keys.
|
|
159
|
*/
|
|
160
|
function search_update_7000() {
|
|
161
|
db_drop_unique_key('search_dataset', 'sid_type');
|
|
162
|
$dataset_type_spec = array(
|
|
163
|
'type' => 'varchar',
|
|
164
|
'length' => 16,
|
|
165
|
'not null' => TRUE,
|
|
166
|
'description' => 'Type of item, e.g. node.',
|
|
167
|
);
|
|
168
|
db_change_field('search_dataset', 'type', 'type', $dataset_type_spec);
|
|
169
|
db_add_primary_key('search_dataset', array('sid', 'type'));
|
|
170
|
|
|
171
|
db_drop_index('search_index', 'word');
|
|
172
|
db_drop_unique_key('search_index', 'word_sid_type');
|
|
173
|
$index_type_spec = array(
|
|
174
|
'type' => 'varchar',
|
|
175
|
'length' => 16,
|
|
176
|
'not null' => TRUE,
|
|
177
|
'description' => 'The {search_dataset}.type of the searchable item to which the word belongs.',
|
|
178
|
);
|
|
179
|
db_change_field('search_index', 'type', 'type', $index_type_spec);
|
|
180
|
db_add_primary_key('search_index', array('word', 'sid', 'type'));
|
|
181
|
}
|
|
182
|
|
