database.php

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<?php
function execute_delayed_write_query($query, $handler = "") {
    return _elgg_services()->db->registerDelayedQuery($query, 'write', $handler);
}

function execute_delayed_read_query($query, $handler = "") {
    return _elgg_services()->db->registerDelayedQuery($query, 'read', $handler);
}

function get_data($query, $callback = "") {
    return _elgg_services()->db->getData($query, $callback);
}

function get_data_row($query, $callback = "") {
    return _elgg_services()->db->getDataRow($query, $callback);
}

function insert_data($query) {
    return _elgg_services()->db->insertData($query);
}

function update_data($query) {
    return _elgg_services()->db->updateData($query);
}

function delete_data($query) {
    return _elgg_services()->db->deleteData($query);
}

function run_sql_script($scriptlocation) {
    _elgg_services()->db->runSqlScript($scriptlocation);
}

function sanitize_string($string) {
    return _elgg_services()->db->sanitizeString($string);
}

function sanitise_string($string) {
    return sanitize_string($string);
}

function sanitize_int($int, $signed = true) {
    return _elgg_services()->db->sanitizeInt($int, $signed);
}

function sanitise_int($int, $signed = true) {
    return sanitize_int($int, $signed);
}

function _elgg_db_log_profiling_data() {
    $db_calls = _elgg_services()->db->getQueryCount();

    // demoted to NOTICE as it corrupts javascript at DEBUG
    elgg_log("DB Queries for this page: $db_calls", 'INFO');
}

function _elgg_db_get_query_counter() {
    return _elgg_services()->queryCounter;
}

function _elgg_db_run_delayed_queries() {
    _elgg_services()->db->executeDelayedQueries();
}

function _elgg_db_init() {
    register_shutdown_function('_elgg_db_run_delayed_queries');
    register_shutdown_function('_elgg_db_log_profiling_data');
}

return function(\Elgg\EventsService $events, \Elgg\HooksRegistrationService $hooks) {
    $events->registerHandler('init', 'system', '_elgg_db_init');
};