[#5] Add a setting for differentiating membership types depending on donation rhythm

CRM/Twingle/Form/Profile.php

@@ -325,6 +325,14 @@ class CRM_Twingle_Form_Profile extends CRM_Core_Form {
       FALSE, // is not required
       array('class' => 'crm-select2 huge')
     );
+    $this->add(
+      'select', // field type
+      'membership_type_id_recur', // field name
+      E::ts('Create membership of type (recurring)'), // field label
+      array('' => E::ts('- none -')) + static::getMembershipTypes(), // list of options
+      FALSE, // is not required
+      array('class' => 'crm-select2 huge')
+    );
 
     $this->add(
       'text', // field type

CRM/Twingle/Profile.php

@@ -214,6 +214,7 @@ class CRM_Twingle_Profile {
         'contribution_source',
         'custom_field_mapping',
         'membership_type_id',
+        'membership_type_id_recur',
       ),
       // Add payment methods.
       array_keys(static::paymentInstruments()),
@@ -283,6 +284,7 @@ class CRM_Twingle_Profile {
       'contribution_source' => NULL,
       'custom_field_mapping' => NULL,
       'membership_type_id' => NULL,
+      'membership_type_id_recur' => NULL,
     )
       // Add contribution status for all payment methods.
       + array_fill_keys(array_map(function($attribute) {