export_json.php

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<?php
class dataface_actions_export_json {
        function handle(&$params){
                $app =& Dataface_Application::getInstance();
                $query =& $app->getQuery();
                
                $records = df_get_selected_records($query);
                if ( !$records ){
                        if ( $query['-mode'] == 'list' ){
                                $records = df_get_records_array($query['-table'], $query);
                        } else {
                                $records = array( $app->getRecord() );
                        }
                }
                
                $jsonProfile = 'basic';
                if ( @$query['--profile'] ){
                    $jsonProfile = $query['--profile'];
                }
                
                $displayMethod = 'val';
                if ( @$query['--displayMethod'] == 'display' ){
                        $displayMethod = 'display';
                } else if ( @$query['--displayMethod'] == 'htmlValue' ){
                        $displayMethod = 'htmlValue';
                }
                
                $out = array();
                if ( isset( $query['--fields'] ) ){
                        $fields = explode(' ', $query['--fields']);
                } else {
                        $fields = null;
                }
                
                
                foreach ($records as $record){
                        if ( !$record->checkPermission('export_json')  ){
                                continue;
                        }
                        
                        $del = $record->table()->getDelegate();
                        $row = null;
                        if ( isset($del) and method_exists($del, 'export_json') ){
                            $row = $del->export_json($record, $jsonProfile, $records);
                        } 
                        if ( !isset($row) ){
                        
                if ( !is_array($fields) ){
                    $fields = array_keys($record->table()->fields(false,true));
                }
                if ( is_array($fields) ){
                    $allowed_fields = array();
                    foreach ($fields as $field ){
                        if ( !$record->checkPermission('export_json', array('field'=>$field) ) ){
                            continue;
                        }
                        $allowed_fields[] = $field;
                    }
                } 
                
                $row = array();
                
                foreach ( $allowed_fields as $fld ){
                    $row[$fld] = $record->$displayMethod($fld);
                }
            }
            
            if ( isset($del) and method_exists($del, 'filter_json') ){
                $del->filter_json($record, $row, $jsonProfile, $records);
            }
            
                        $out[] = $row;
                }
                
                if ( @$query['--single'] ){
                        if ( count($out) > 0 ){
                                $out = $out[0];
                        } 
                }
                
                if ( @$query['--var'] ){
                        $out = array(
                                'code' => 200,
                                $query['--var'] => $out
                        );
                }
                
                //import('Services/JSON.php');
                //$json = new Services_JSON;
                $enc_out = json_encode($out);
                header('Content-type: application/json; charset='.$app->_conf['oe']);
                header('Connection: close');
                echo $enc_out;
                exit;
        }
}