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comparison modules/poll/poll.install @ 0:ff03f76ab3fe

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initial version
author danieleb <danielebarchiesi@me.com>
date Wed, 21 Aug 2013 18:51:11 +0100
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-1:000000000000 0:ff03f76ab3fe
1 <?php
2
3 /**
4 * @file
5 * Install, update and uninstall functions for the poll module.
6 */
7
8 /**
9 * Implements hook_schema().
10 */
11 function poll_schema() {
12 $schema['poll'] = array(
13 'description' => 'Stores poll-specific information for poll nodes.',
14 'fields' => array(
15 'nid' => array(
16 'type' => 'int',
17 'unsigned' => TRUE,
18 'not null' => TRUE,
19 'default' => 0,
20 'description' => "The poll's {node}.nid.",
21 ),
22 'runtime' => array(
23 'type' => 'int',
24 'not null' => TRUE,
25 'default' => 0,
26 'description' => 'The number of seconds past {node}.created during which the poll is open.',
27 ),
28 'active' => array(
29 'type' => 'int',
30 'unsigned' => TRUE,
31 'not null' => TRUE,
32 'default' => 0,
33 'description' => 'Boolean indicating whether or not the poll is open.',
34 ),
35 ),
36 'primary key' => array('nid'),
37 'foreign keys' => array(
38 'poll_node' => array(
39 'table' => 'node',
40 'columns' => array('nid' => 'nid'),
41 ),
42 ),
43 );
44
45 $schema['poll_choice'] = array(
46 'description' => 'Stores information about all choices for all {poll}s.',
47 'fields' => array(
48 'chid' => array(
49 'type' => 'serial',
50 'unsigned' => TRUE,
51 'not null' => TRUE,
52 'description' => 'Unique identifier for a poll choice.',
53 ),
54 'nid' => array(
55 'type' => 'int',
56 'unsigned' => TRUE,
57 'not null' => TRUE,
58 'default' => 0,
59 'description' => 'The {node}.nid this choice belongs to.',
60 ),
61 'chtext' => array(
62 'type' => 'varchar',
63 'length' => 128,
64 'not null' => TRUE,
65 'default' => '',
66 'description' => 'The text for this choice.',
67 'translatable' => TRUE,
68 ),
69 'chvotes' => array(
70 'type' => 'int',
71 'not null' => TRUE,
72 'default' => 0,
73 'description' => 'The total number of votes this choice has received by all users.',
74 ),
75 'weight' => array(
76 'type' => 'int',
77 'not null' => TRUE,
78 'default' => 0,
79 'description' => 'The sort order of this choice among all choices for the same node.',
80 ),
81 ),
82 'indexes' => array(
83 'nid' => array('nid'),
84 ),
85 'primary key' => array('chid'),
86 'foreign keys' => array(
87 'choice_node' => array(
88 'table' => 'node',
89 'columns' => array('nid' => 'nid'),
90 ),
91 ),
92 );
93
94 $schema['poll_vote'] = array(
95 'description' => 'Stores per-{users} votes for each {poll}.',
96 'fields' => array(
97 'chid' => array(
98 'type' => 'int',
99 'unsigned' => TRUE,
100 'not null' => TRUE,
101 'description' => "The {users}'s vote for this poll.",
102 ),
103 'nid' => array(
104 'type' => 'int',
105 'unsigned' => TRUE,
106 'not null' => TRUE,
107 'description' => 'The {poll} node this vote is for.',
108 ),
109 'uid' => array(
110 'type' => 'int',
111 'unsigned' => TRUE,
112 'not null' => TRUE,
113 'default' => 0,
114 'description' => 'The {users}.uid this vote is from unless the voter was anonymous.',
115 ),
116 'hostname' => array(
117 'type' => 'varchar',
118 'length' => 128,
119 'not null' => TRUE,
120 'default' => '',
121 'description' => 'The IP address this vote is from unless the voter was logged in.',
122 ),
123 'timestamp' => array(
124 'type' => 'int',
125 'not null' => TRUE,
126 'default' => 0,
127 'description' => 'The timestamp of the vote creation.',
128 ),
129 ),
130 'primary key' => array('nid', 'uid', 'hostname'),
131 'foreign keys' => array(
132 'poll_node' => array(
133 'table' => 'node',
134 'columns' => array('nid' => 'nid'),
135 ),
136 'voter' => array(
137 'table' => 'users',
138 'columns' => array('uid' => 'uid'),
139 ),
140 ),
141 'indexes' => array(
142 'chid' => array('chid'),
143 'hostname' => array('hostname'),
144 'uid' => array('uid'),
145 ),
146 );
147
148 return $schema;
149 }
150
151 /**
152 * Use the poll_choice primary key to record votes in poll_votes rather than
153 * the choice order. Rename chorder to weight.
154 *
155 * Rename {poll_choices} table to {poll_choice} and {poll_votes} to {poll_vote}.
156 */
157 function poll_update_7001() {
158 // Add chid column and convert existing votes.
159 db_add_field('poll_votes', 'chid', array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0));
160 db_add_index('poll_votes', 'chid', array('chid'));
161 db_update('poll_votes')
162 ->expression('chid', Database::getConnection()->prefixTables('COALESCE((SELECT chid FROM {poll_choices} c WHERE {poll_votes}.chorder = c.chorder AND {poll_votes}.nid = c.nid), 0)'))
163 ->execute();
164 // Delete invalid votes.
165 db_delete('poll_votes')->condition('chid', 0)->execute();
166 // Remove old chorder column.
167 db_drop_field('poll_votes', 'chorder');
168
169 // Change the chorder column to weight in poll_choices.
170 db_change_field('poll_choices', 'chorder', 'weight', array('type' => 'int', 'not null' => TRUE, 'default' => 0, 'size' => 'tiny'));
171
172 db_rename_table('poll_votes', 'poll_vote');
173 db_rename_table('poll_choices', 'poll_choice');
174 }
175
176 /**
177 * Add timestamp field to {poll_vote}.
178 */
179 function poll_update_7002() {
180 $field = array(
181 'type' => 'int',
182 'not null' => TRUE,
183 'default' => 0,
184 );
185 db_add_field('poll_vote', 'timestamp', $field);
186 }
187
188 /**
189 * Change the weight column to normal int.
190 */
191 function poll_update_7003() {
192 db_change_field('poll_choice', 'weight', 'weight', array(
193 'type' => 'int',
194 'not null' => TRUE,
195 'default' => 0,
196 'description' => 'The sort order of this choice among all choices for the same node.',
197 ));
198 }
199
200 /**
201 * @addtogroup updates-7.x-extra
202 * @{
203 */
204
205 /**
206 * Update the database to match the schema.
207 */
208 function poll_update_7004() {
209 // Remove field default.
210 db_change_field('poll_vote', 'chid', 'chid', array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE));
211 }
212
213 /**
214 * @} End of "addtogroup updates-7.x-extra".
215 */