PHP qa_db_apply_sub函数代码示例

function qa_db_hotness_update($firstpostid, $lastpostid = null, $viewincrement = false)
{
    if (qa_should_update_counts()) {
        if (!isset($lastpostid)) {
            $lastpostid = $firstpostid;
        }
        $query = 'UPDATE ^posts AS x, (SELECT parents.postid, parents.created AS qcreated, COALESCE(MAX(children.created), parents.created) as acreated, COUNT(children.postid) AS acount, parents.netvotes, parents.views FROM ^posts AS parents LEFT JOIN ^posts AS children ON parents.postid=children.parentid AND children.type=\'A\' WHERE parents.postid>=# AND parents.postid<=# AND parents.type=\'Q\' GROUP BY postid) AS a SET x.hotness=(' . '((TO_DAYS(a.qcreated)-734138)*86400.0+TIME_TO_SEC(a.qcreated))*# + ' . '((TO_DAYS(a.acreated)-734138)*86400.0+TIME_TO_SEC(a.acreated))*# + ' . '(a.acount+0.0)*# + ' . '(a.netvotes+0.0)*# + ' . '(a.views+0.0+#)*#' . ')' . ($viewincrement ? ', x.views=x.views+1, x.lastviewip=INET_ATON($)' : '') . ' WHERE x.postid=a.postid';
        //	Additional multiples based on empirical analysis of activity on Q2A meta site to give approx equal influence for all factors
        $arguments = array($firstpostid, $lastpostid, qa_opt('hot_weight_q_age'), qa_opt('hot_weight_a_age'), qa_opt('hot_weight_answers') * 160000, qa_opt('hot_weight_votes') * 160000, $viewincrement ? 1 : 0, qa_opt('hot_weight_views') * 4000);
        if ($viewincrement) {
            $arguments[] = qa_remote_ip_address();
        }
        qa_db_query_raw(qa_db_apply_sub($query, $arguments));
    }
}

 public function process_request($request)
 {
     $requestparts = explode('/', qa_request());
     $slugs = array_slice($requestparts, 1);
     $countslugs = count($slugs);
     $userid = qa_get_logged_in_userid();
     $start = qa_get_start();
     $count = qa_opt_if_loaded('page_size_activity');
     $totalcount = qa_opt('cache_qcount');
     $qspec = qa_db_posts_basic_selectspec($userid, false);
     qa_db_add_selectspec_opost($qspec, 'ra', false, false);
     qa_db_add_selectspec_ousers($qspec, 'rau', 'raup');
     $qspec['source'] .= " JOIN (SELECT questionid, childid FROM ^homepage ORDER BY ^homepage.updated DESC) AS rcaq ON ^posts.postid=rcaq.questionid" . " LEFT JOIN ^posts AS ra ON childid=ra.postid" . (QA_FINAL_EXTERNAL_USERS ? "" : " LEFT JOIN ^users AS rau ON ra.userid=rau.userid") . " LEFT JOIN ^userpoints AS raup ON ra.userid=raup.userid LIMIT #,#";
     array_push($qspec['columns'], 'childid');
     array_push($qspec['arguments'], $start, $count);
     $qspec['sortdesc'] = 'otime';
     $query = 'SELECT ';
     foreach ($qspec['columns'] as $columnas => $columnfrom) {
         $query .= $columnfrom . (is_int($columnas) ? '' : ' AS ' . $columnas) . ', ';
     }
     $query = qa_db_apply_sub(substr($query, 0, -2) . (strlen(@$qspec['source']) ? ' FROM ' . $qspec['source'] : ''), @$qspec['arguments']);
     $results = qa_db_read_all_assoc(qa_db_query_raw($query));
     qa_db_post_select($results, $qspec);
     list($categories, $categoryid) = qa_db_select_with_pending(qa_db_category_nav_selectspec($slugs, false, false, true), $countslugs ? qa_db_slugs_to_category_id_selectspec($slugs) : null);
     $questions = qa_any_sort_and_dedupe($results);
     // $questions=qa_any_sort_and_dedupe(array_merge($recentquestions,$recentanswers));
     $pagesize = qa_opt('page_size_home');
     if ($countslugs) {
         if (!isset($categoryid)) {
             return include QA_INCLUDE_DIR . 'qa-page-not-found.php';
         }
         $categorytitlehtml = qa_html($categories[$categoryid]['title']);
         $sometitle = qa_lang_html_sub('main/recent_qs_as_in_x', $categorytitlehtml);
         $nonetitle = qa_lang_html_sub('main/no_questions_in_x', $categorytitlehtml);
     } else {
         $sometitle = qa_lang_html('main/recent_qs_as_title');
         $nonetitle = qa_lang_html('main/no_questions_found');
     }
     require_once QA_INCLUDE_DIR . 'qa-app-q-list.php';
     $qa_content = qa_q_list_page_content($questions, $pagesize, $start, $totalcount, $sometitle, $nonetitle, $categories, $categoryid, true, qa_opt('eql_homepage_url'), qa_opt('feed_for_qa') ? qa_opt('eql_homepage_url') : null, count($questions) < $pagesize ? qa_html_suggest_ask($categoryid) : qa_html_suggest_qs_tags(qa_using_tags(), qa_category_path_request($categories, $categoryid)), null, null);
     return $qa_content;
 }

function qa_db_limits_get($userid, $ip, $action)
{
    $selects = array();
    $arguments = array();
    if (isset($userid)) {
        $selects[] = "(SELECT 'user' AS limitkey, period, count FROM ^userlimits WHERE userid=\$ AND action=\$)";
        $arguments[] = $userid;
        $arguments[] = $action;
    }
    if (isset($ip)) {
        $selects[] = "(SELECT 'ip' AS limitkey, period, count FROM ^iplimits WHERE ip=COALESCE(INET_ATON(\$), 0) AND action=\$)";
        $arguments[] = $ip;
        $arguments[] = $action;
    }
    if (count($selects)) {
        $query = qa_db_apply_sub(implode(' UNION ALL ', $selects), $arguments);
        return qa_db_read_all_assoc(qa_db_query_raw($query), 'limitkey');
    } else {
        return array();
    }
}

function qa_db_upgrade_query($query)
{
    qa_db_upgrade_progress('Running query: ' . qa_db_apply_sub($query, array()) . ' ...');
    qa_db_query_sub($query);
}

function qa_db_category_delete($categoryid)
{
    qa_db_ordered_delete('categories', 'categoryid', $categoryid, qa_db_apply_sub('parentid<=>#', array(qa_db_category_get_parent($categoryid))));
}

/**
 * Return the data specified by each element of $selectspecs, where the keys of the
 * returned array match the keys of the supplied $selectspecs array. See long comment above.
 */
function qa_db_multi_select($selectspecs)
{
    if (!count($selectspecs)) {
        return array();
    }
    //	Perform simple queries if the database is local or there are only 0 or 1 selectspecs
    if (QA_OPTIMIZE_LOCAL_DB || count($selectspecs) <= 1) {
        $outresults = array();
        foreach ($selectspecs as $selectkey => $selectspec) {
            $outresults[$selectkey] = qa_db_single_select($selectspec);
        }
        return $outresults;
    }
    //	Otherwise, parse columns for each spec to deal with columns without an 'AS' specification
    foreach ($selectspecs as $selectkey => $selectspec) {
        $selectspecs[$selectkey]['outcolumns'] = array();
        $selectspecs[$selectkey]['autocolumn'] = array();
        foreach ($selectspec['columns'] as $columnas => $columnfrom) {
            if (is_int($columnas)) {
                $periodpos = strpos($columnfrom, '.');
                $columnas = is_numeric($periodpos) ? substr($columnfrom, $periodpos + 1) : $columnfrom;
                $selectspecs[$selectkey]['autocolumn'][$columnas] = true;
            }
            if (isset($selectspecs[$selectkey]['outcolumns'][$columnas])) {
                qa_fatal_error('Duplicate column name in qa_db_multi_select()');
            }
            $selectspecs[$selectkey]['outcolumns'][$columnas] = $columnfrom;
        }
        if (isset($selectspec['arraykey'])) {
            if (!isset($selectspecs[$selectkey]['outcolumns'][$selectspec['arraykey']])) {
                qa_fatal_error('Used arraykey not in columns in qa_db_multi_select()');
            }
        }
        if (isset($selectspec['arrayvalue'])) {
            if (!isset($selectspecs[$selectkey]['outcolumns'][$selectspec['arrayvalue']])) {
                qa_fatal_error('Used arrayvalue not in columns in qa_db_multi_select()');
            }
        }
    }
    //	Work out the full list of columns used
    $outcolumns = array();
    foreach ($selectspecs as $selectspec) {
        $outcolumns = array_unique(array_merge($outcolumns, array_keys($selectspec['outcolumns'])));
    }
    //	Build the query based on this full list
    $query = '';
    foreach ($selectspecs as $selectkey => $selectspec) {
        $subquery = "(SELECT '" . qa_db_escape_string($selectkey) . "'" . (empty($query) ? ' AS selectkey' : '');
        foreach ($outcolumns as $columnas) {
            $subquery .= ', ' . (isset($selectspec['outcolumns'][$columnas]) ? $selectspec['outcolumns'][$columnas] : 'NULL');
            if (empty($query) && !isset($selectspec['autocolumn'][$columnas])) {
                $subquery .= ' AS ' . $columnas;
            }
        }
        if (strlen(@$selectspec['source'])) {
            $subquery .= ' FROM ' . $selectspec['source'];
        }
        $subquery .= ')';
        if (strlen($query)) {
            $query .= ' UNION ALL ';
        }
        $query .= qa_db_apply_sub($subquery, @$selectspec['arguments']);
    }
    //	Perform query and extract results
    $rawresults = qa_db_read_all_assoc(qa_db_query_raw($query));
    $outresults = array();
    foreach ($selectspecs as $selectkey => $selectspec) {
        $outresults[$selectkey] = array();
    }
    foreach ($rawresults as $rawresult) {
        $selectkey = $rawresult['selectkey'];
        $selectspec = $selectspecs[$selectkey];
        $keepresult = array();
        foreach ($selectspec['outcolumns'] as $columnas => $columnfrom) {
            $keepresult[$columnas] = $rawresult[$columnas];
        }
        if (isset($selectspec['arraykey'])) {
            $outresults[$selectkey][$keepresult[$selectspec['arraykey']]] = $keepresult;
        } else {
            $outresults[$selectkey][] = $keepresult;
        }
    }
    //	Post-processing to apply various stuff include sorting request, since we can't rely on ORDER BY due to UNION
    foreach ($selectspecs as $selectkey => $selectspec) {
        qa_db_post_select($outresults[$selectkey], $selectspec);
    }
    //	Return results
    return $outresults;
}

function qa_db_points_update_ifuser($userid, $columns)
{
    if (qa_to_override(__FUNCTION__)) {
        $args = func_get_args();
        return qa_call_override(__FUNCTION__, $args);
    }
    if (qa_should_update_counts() && isset($userid)) {
        require_once QA_INCLUDE_DIR . 'app/options.php';
        require_once QA_INCLUDE_DIR . 'app/cookies.php';
        $calculations = qa_db_points_calculations();
        if ($columns === true) {
            $keycolumns = $calculations;
        } elseif (empty($columns)) {
            $keycolumns = array();
        } elseif (is_array($columns)) {
            $keycolumns = array_flip($columns);
        } else {
            $keycolumns = array($columns => true);
        }
        $insertfields = 'userid, ';
        $insertvalues = '$, ';
        $insertpoints = (int) qa_opt('points_base');
        $updates = '';
        $updatepoints = $insertpoints;
        foreach ($calculations as $field => $calculation) {
            $multiple = (int) $calculation['multiple'];
            if (isset($keycolumns[$field])) {
                $insertfields .= $field . ', ';
                $insertvalues .= '@_' . $field . ':=(SELECT ' . $calculation['formula'] . '), ';
                $updates .= $field . '=@_' . $field . ', ';
                $insertpoints .= '+(' . (int) $multiple . '*@_' . $field . ')';
            }
            $updatepoints .= '+(' . $multiple . '*' . (isset($keycolumns[$field]) ? '@_' : '') . $field . ')';
        }
        $query = 'INSERT INTO ^userpoints (' . $insertfields . 'points) VALUES (' . $insertvalues . $insertpoints . ') ' . 'ON DUPLICATE KEY UPDATE ' . $updates . 'points=' . $updatepoints . '+bonus';
        qa_db_query_raw(str_replace('~', "='" . qa_db_escape_string($userid) . "'", qa_db_apply_sub($query, array($userid))));
        // build like this so that a #, $ or ^ character in the $userid (if external integration) isn't substituted
        if (qa_db_insert_on_duplicate_inserted()) {
            qa_db_userpointscount_update();
        }
    }
}