gpui-sequential-ids-as-per-date-field.php: Added snippet to generate Unique IDs as per selected date field.

Author: saifsultanc

gp-unique-id/gpui-sequential-ids-as-per-date-field.php

@@ -0,0 +1,22 @@
+<?php
+/**
+ * GP Unique ID // Gravity Perks // Creates Sequential IDs as per Date Field selected.
+ * http://gravitywiz.com/
+ *
+ * Make the sequence for a given Unique ID field specific to the date field value. The sequence will automatically
+ * generate Unique IDs for a particular date.
+ */
+// Update "123" to your form ID and "4" to your Unique ID field.
+add_filter( 'gpui_unique_id_attributes_123_4', 'gw_generate_unique_id_as_per_date_field', 10, 4);
+function gw_generate_unique_id_as_per_date_field( $atts, $entry, $form_id, $field_id ) {
+	// Replace 4 with the Date field ID used for targetting Unique ID generation
+	$date_field_id = 4;
+
+	// Remove any special character like / - . which can be in the date field value.
+	$date_string = str_replace( array( '/', '-', '.' ), '', $entry[$date_field_id] );
+
+	// Update UID Attributes with the date string.
+	$atts['form_id'] = (int) $date_string;
+
+	return $atts;
+}