gpecf-set-discount-amount-via-gpep.php: Migrated from experimental folder.

Author: sbassah

gp-ecommerce-fields/gpecf-set-discount-amount-via-gpep.php

@@ -0,0 +1,41 @@
+<?php
+/**
+ * Gravity Perks // GP eCommerce Fields // Dynamically Set Discount Amount via Easy Passthrough
+ * http://gravitywiz.com/documentation/gravity-forms-ecommerce-fields/
+ * 
+ * Experimental Snippet 🧪
+ *
+ * This experimental snippet allows you to set the discount amount by a field that has been populated via Easy Passthrough.
+ */
+// Update "123" to your form ID.
+add_filter( 'gform_pre_render_123', 'gw_set_discount_amount' );
+add_filter( 'gform_pre_process_123', 'gw_set_discount_amount' );
+add_filter( 'gform_admin_pre_render_123', 'gw_set_discount_amount' );
+function gw_set_discount_amount( $form ) {
+
+	if ( current_filter() === 'gform_admin_pre_render_' . $form['id'] && GFForms::get_page() !== 'entry_detail' ) {
+		return $form;
+	}
+
+	foreach ( $form['fields'] as &$field ) {
+		// Update "5" to your Discount field ID.
+		if ( $field->id == 3 ) {
+			// Update "6" to the field that will be populated by Easy Passthrough with the discount amount.
+			$field->discountAmount = gw_get_gpep_value( $form['id'], 6 );
+		}
+	}
+
+	return $form;
+}
+
+function gw_get_gpep_value( $form_id, $field_id ) {
+
+	if ( GFForms::get_page() && rgget( 'lid' ) ) {
+		$entry        = GFAPI::get_entry( rgget( 'lid' ) );
+		$field_values = $entry;
+	} else {
+		$field_values = gp_easy_passthrough()->get_field_values( $form_id );
+	}
+
+	return rgar( $field_values, $field_id );
+}