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<?php
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// $Id: links.install,v 1.7 2007/12/14 18:52:15 syscrusher Exp $
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/**
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* This function reads the entire links table. For each row, it takes
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* the full URL as stored, normalizes it using the current version of
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* links_normalize_url(), and recalculates the MD5 sum for
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* the row. If the new sum or the newly-normalized URL differs from
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* the old, returns SQL to change the record accordingly.
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*
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* The return value is an array generated by update_sql().
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*/
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function _links_recalc_all_url_md5() {
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$updates = array();
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$sql = "SELECT lid, url, url_md5 FROM {links}";
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$result = db_query($sql);
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if (db_error()) {
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watchdog("error","links failed on main query in _links_recalc_all_url_md5()");
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return -1;
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}
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while (is_array($row=db_fetch_array($result))) {
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$parsed = links_parse_url($row["url"]);
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$md5_new = $parsed['md5'];
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$url_new = $parsed['normalized'];
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if ($md5_new != $row["url_md5"] || $url_new != $row["url"]) {
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$sql = "UPDATE {links} SET url='".db_escape_string($url_new)."', url_md5='".db_escape_string($md5_new)."' WHERE lid=".$row['lid'];
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$updates[] = update_sql($sql);
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}
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}
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return $updates;
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}
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/**
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* Update the tables to UTF-8
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*/
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function links_update_6101() {
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return _system_update_utf8(array('links', 'links_node', 'links_monitor'));
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}
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/**
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* Recalc all the MD5 sums because links_normalize_url() changed
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*/
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function links_update_6102() {
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return _links_recalc_all_url_md5();
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}
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/**
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* Install the initial schema.
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*/
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function links_install() {
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drupal_install_schema('links');
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}
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/**
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* Uninstall the module
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*/
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function links_uninstall() {
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drupal_uninstall_schema('links');
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}
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function links_schema() {
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$schema['links'] = array(
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'fields' => array(
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'lid' => array('type' => 'serial', 'unsigned' => TRUE, 'not null' => TRUE),
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'url_md5' => array('type' => 'char', 'length' => 32, 'not null' => TRUE, 'default' => ''),
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'url' => array('type' => 'text', 'not null' => TRUE, 'default' => ''),
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'link_title' => array('type' => 'varchar', 'length' => 255, 'not null' => TRUE, 'default' => ''),
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'last_click_time' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
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),
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'primary key' => array('lid'),
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'unique keys' => array(
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'url_ix' => array('url_md5'),
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'title_ix' => array('link_title','lid'),
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'stale_ix' => array('last_click_time','lid'),
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),
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);
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$schema['links_node'] = array(
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'fields' => array(
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'lid' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
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'nid' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
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'link_title' => array('type' => 'varchar', 'length' => 255, 'not null' => TRUE, 'default' => ''),
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'weight' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0, 'size'=>'tiny'),
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'clicks' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
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'module' => array('type' => 'varchar', 'length' => 60, 'not null' => TRUE, 'default' => ''),
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),
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'primary key' => array('lid', 'nid', 'module'),
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'unique_keys' => array(
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'node_link_ix1' => array('nid','module','link_title','lid'),
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'node_link_ix2' => array('link_title','nid','module','lid'),
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'node_link_ix3' => array('nid','module','lid','weight'),
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),
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);
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$schema['links_monitor'] = array(
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'fields' => array(
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'lid' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
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'check_interval' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
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'last_check' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
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'fail_count' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
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'alternate_monitor_url' => array('type' => 'text', 'not null' => FALSE),
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'redirect_propose_url' => array('type' => 'text', 'not null' => FALSE),
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'redirect_saved_url' => array('type' => 'text', 'not null' => FALSE),
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'change_threshold' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0),
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'change_flag' => array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0, 'size'=>'tiny'),
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'change_last_data' => array('type' => 'text', 'not null' => FALSE),
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),
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'primary key' => array('lid'),
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'unique keys' => array(
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'check_ix' => array('last_check','check_interval','lid'),
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'change_ix' => array('change_flag','last_check','lid'),
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'rotted_ix' => array('fail_count','last_check','lid'),
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),
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);
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return $schema;
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}
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