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<?php
namespace WPGMZA;
class AjaxTable extends Table
{
public function __construct($table_name, $rest_api_route, $ajax_parameters=null)
{
Table::__construct($table_name);
$this->element->setAttribute('data-wpgmza-php-class', get_called_class());
$this->setRestAPIRoute($rest_api_route);
if($ajax_parameters)
$this->setAjaxParameters($ajax_parameters);
}
public function getAjaxParameters()
{
return $this->getAttributeParams('data-wpgmza-ajax-parameters');
}
public function setAjaxParameters($ajax_parameters)
{
$this->setAttributeParams('data-wpgmza-ajax-parameters', $ajax_parameters);
}
protected function getAttributeParams($name)
{
if(!$this->element->hasAttribute($name))
return (object)array();
return json_decode($this->element->getAttribute($name));
}
protected function setAttributeParams($name, $params)
{
if(!(is_array($params) || is_object($params)))
throw new \Exception('Parameters must be JSON serializable');
$obj = $this->getAttributeParams($name);
foreach($params as $key => $value)
$obj->{$key} = $value;
$this->element->setAttribute($name, json_encode($obj));
}
protected function getRestAPIRoute()
{
return $this->element->getAttribute('data-wpgmza-rest-api-route');
}
protected function setRestAPIRoute($route)
{
if(!is_string($route))
throw new \Exception('Invalid REST API route');
$this->element->setAttribute('data-wpgmza-rest-api-route', $route);
}
protected function getColumns()
{
throw new \Exception('Abstract function called');
}
protected function getColumnNameByIndex($index)
{
$i = 0;
$columns = $this->getColumns();
foreach($columns as $key => $value)
{
if($i++ == $index)
return $key;
}
return null;
}
protected function getOrderBy($input_params, $column_keys)
{
return 'id';
}
protected function getOrderDirection($input_params)
{
return 'DESC';
}
protected function getWhereClause($input_params, &$query_params, $clause_for_total=false)
{
global $wpgmza;
$clauses = array();
if(isset($input_params['overrideMarkerIDs']))
{
$markerIDs = $input_params['overrideMarkerIDs'];
if(is_string($markerIDs))
$markerIDs = explode(',', $markerIDs);
if(empty($markerIDs))
return '0';
else
return 'id IN (' . implode(', ', array_map('intval', $markerIDs)) . ')';
}
if(isset($input_params['mashup_ids']))
{
$mashup_ids = $input_params['mashup_ids'];
$placeholders = implode(',', array_fill(0, count($mashup_ids), '%d'));
$clauses['mashup_ids'] = 'map_id IN (' . $placeholders. ')';
for($i = 0; $i < count($mashup_ids); $i++)
$query_params[] = $mashup_ids[$i];
}
else if(isset($input_params['map_id']))
{
$clauses['map_id'] = 'map_id=%d';
$query_params[] = $input_params['map_id'];
}
if(!(is_admin() || (preg_match('/page=wp-google-maps-menu/', $_SERVER['HTTP_REFERER']) && current_user_can('administrator'))))
{
$clauses['approved'] = 'approved=%d';
$query_params[] = 1;
}
if(!$clause_for_total)
{
$search_clause = $this->getSearchClause($input_params, $query_params);
if(!empty($search_clause))
$clauses['search'] = $search_clause;
}
if(empty($clauses))
return '1';
return implode(' AND ', $clauses);
}
protected function getSearchClause($input_params, &$query_params, $exclude_columns=null)
{
global $wpdb;
if(isset($input_params['overrideMarkerIDs']))
return "";
if(empty($input_params['search']['value']))
return "";
$columns = $this->getColumns();
$clauses = array();
$term = $input_params['search']['value'];
$subclauses = array();
foreach($columns as $key => $label)
{
if($exclude_columns && array_search($key, $exclude_columns) !== false)
continue;
array_push($subclauses, "$key LIKE %s");
array_push($query_params, "%%" . $wpdb->esc_like($term) . "%%");
}
if(empty($subclauses))
return '';
$result = "(" . implode(' OR ', $subclauses) . ")";
return $result;
}
protected function getHavingClause($input_params, &$query_params, $exclude_columns=null)
{
return '';
}
protected function filterColumns(&$columns, $input_params)
{
foreach($columns as $key => $value)
{
if($value == 'mark')
$columns[$key] = '\'<input type="checkbox" name="mark"/>\' AS mark';
}
return $columns;
}
protected function filterResults(&$rows)
{
return $rows;
}
protected function filterOrderBy($orderBy, $keys)
{
return $orderBy;
}
protected function filterOrderDirection($orderDirection)
{
return $orderDirection;
}
public function getRecords($input_params)
{
global $wpdb;
global $wpgmza;
$columns = $this->getColumns();
$keys = array_keys($columns);
$query_params = array();
$total_query_params = array();
$where = $this->getWhereClause($input_params, $query_params);
$having = $this->getHavingClause($input_params, $query_params);
$order_column = $this->filterOrderBy( $this->getOrderBy($input_params, $keys), $keys );
$order_dir = $this->filterOrderDirection( $this->getOrderDirection($input_params) );
$columns = $this->filterColumns($keys, $input_params);
$imploded = implode(',', $columns);
$qstr = "SELECT SQL_CALC_FOUND_ROWS $imploded FROM {$this->table_name} WHERE $where";
if(!empty($having))
$qstr .= " HAVING $having";
if(empty($order_column))
$order_column = 'id';
if(empty($order_dir))
$order_dir = 'ASC';
$qstr .= " ORDER BY ISNULL({$order_column}), {$order_column}+0 {$order_dir}, {$order_column} {$order_dir}";
if(isset($input_params['length']))
{
$length = $input_params['length'];
if(isset($length) &&
$length != '-1' &&
!preg_match('/^all$/i', $length))
{
$qstr .= " LIMIT " . intval($input_params['length']);
if(isset($input_params['start']))
$qstr .= " OFFSET " . intval($input_params['start']);
}
}
$count_query_params = array();
$count_where = $this->getWhereClause($input_params, $count_query_params, true);
$count_qstr = "SELECT COUNT(id) FROM {$this->table_name} WHERE $count_where";
if(!empty($query_params))
$stmt = $wpdb->prepare($count_qstr, $count_query_params);
else
$stmt = $count_qstr;
$total_count = (int)$wpdb->get_var($stmt);
if(!empty($query_params))
$stmt = $wpdb->prepare($qstr, $query_params);
else
$stmt = $qstr;
$rows = $wpdb->get_results($stmt);
$this->filterResults($rows);
$found_rows = $wpdb->get_var('SELECT FOUND_ROWS()');
$meta = array();
foreach($rows as $key => $value)
$meta[$key] = $value;
$result = (object)array(
'recordsTotal' => $total_count,
'recordsFiltered' => $found_rows,
'data' => apply_filters('wpgmza_ajax_table_records', $rows),
'meta' => apply_filters('wpgmza_ajax_table_meta', $meta)
);
if($wpgmza->isInDeveloperMode())
$result->query = $stmt;
return $result;
}
public function data($input_params)
{
return $this->getRecords($input_params);
}
}