delete old auto-draft posts

Author: contactashish13

classes/Visualizer/Module/Chart.php

@@ -237,6 +237,28 @@ public function deleteChart() {
 		exit;
 	}
 
+	/**
+	 * Delete charts that are still in auto-draft mode.
+	 */
+	private function deleteOldCharts() {
+		$query = new WP_Query(
+			array(
+				'post_type'    => Visualizer_Plugin::CPT_VISUALIZER,
+				'post_status'  => 'auto-draft',
+				'fields'                => 'ids',
+				'update_post_meta_cache' => false,
+				'update_post_term_cache' => false,
+				'posts_per_page'        => 50,
+			)
+		);
+		if ( $query->have_posts() ) {
+			$ids = array();
+			while ( $query->have_posts() ) {
+				wp_delete_post( $query->next_post(), true );
+			}
+		}
+	}
+
 	/**
 	 * Renders appropriate page for chart builder. Creates new auto draft chart
 	 * if no chart has been specified.
@@ -250,6 +272,7 @@ public function renderChartPages() {
 		// check chart, if chart not exists, will create new one and redirects to the same page with proper chart id
 		$chart_id = isset( $_GET['chart'] ) ? filter_var( $_GET['chart'], FILTER_VALIDATE_INT ) : '';
 		if ( ! $chart_id || ! ( $chart = get_post( $chart_id ) ) || $chart->post_type != Visualizer_Plugin::CPT_VISUALIZER ) {
+			$this->deleteOldCharts();
 			$default_type = isset( $_GET['type'] ) && ! empty( $_GET['type'] ) ? $_GET['type'] : 'line';
 			$source       = new Visualizer_Source_Csv( VISUALIZER_ABSPATH . DIRECTORY_SEPARATOR . 'samples' . DIRECTORY_SEPARATOR . $default_type . '.csv' );
 			$source->fetch();