gcn-radio-button-to-date-property-mapping.php: Added snippet to map…

… radio fields to Notion Date properties.

gc-notion/gcn-radio-button-to-date-property-mapping.php

@@ -0,0 +1,51 @@
+<?php
+/**
+ * Gravity Connect // Notion // Radio Button to Date Property Mapping
+ *
+ * This snippet demonstrates how to map a radio button field to a Date property in Notion.
+ *
+ * Instructions:
+ *   1. Modify the filter name to scope as needed.
+ *     * see filter reference for full list of variants: https://gravitywiz.com/documentation/gcn_notion_page_data/)
+ *
+ *   2. Get the Date property ID from the Notion database and update the $property_id variable.
+ *     * Enable the gcn_show_feed_database_debug_info hook: https://gravitywiz.com/documentation/gcn_show_feed_database_debug_info/
+ *     * Open the browser developer console and navigate to a GC Notion feed which is connected to the database you are populating into.
+ *     * Scroll up in the developer console until you see the debug info displayed.
+ *     * Find the date property and copy the ID.
+ *   3. Double check that the date format in the radio field options matches the $date_format variable.
+ *     * Note: if it doesn't, you can either adjust the date format in the radio field options or adjust the $date_format variable.
+ *
+ * Installation:
+ *   1. Install per https://gravitywiz.com/documentation/how-do-i-install-a-snippet/
+ *
+ * References:
+ *   * GC Notion: https://gravitywiz.com/documentation/gravity-connect-notion/
+ *   * Notion page POST reference: https://developers.notion.com/reference/post-page
+ *   * Notion Database property reference: https://developers.notion.com/reference/page-property-values#date
+ *
+ * @since 1.0-beta-1.9
+ */
+
+add_filter( 'gcn_notion_page_data', function( $page_data, $form, $entry, $feed ) {
+	$radio_date_field_id = 1; // Update this with the ID of the radio field.
+	$property_id         = 'TODO'; // Update this with the Date property ID from the Notion database.
+
+	// date format in radio field value expected to be: 'd F Y'. E.g. 01 January 2025
+	$date_format       = 'd F Y';
+	$radio_field_value = $entry[ $radio_date_field_id ];
+	$date              = \DateTime::createFromFormat( $date_format, $radio_field_value );
+
+	// if the radio field was left empty, skip adding the value.
+	if ( $date ) {
+		$iso_date = $date ? $date->format( 'Y-m-d' ) : '';
+
+		$page_data['properties'][ $property_id ] = array(
+			'date' => array(
+				'start' => $iso_date,
+			),
+		);
+	}
+
+	return $page_data;
+}, 10, 4 );