Fixed compatibility with changed repeat syntax.

Fixes #94.

CHANGES.txt

@@ -5,7 +5,8 @@ CHANGES
 3.7.1 (unreleased)
 ------------------
 
-- Nothing changed yet.
+- Fixed compatibility with changed repeat syntax.
+  Fixes `issue 94 <https://github.com/zopefoundation/z3c.form/issues/94>`_.
 
 
 3.7.0 (2019-05-22)

src/z3c/form/browser/multi_display.pt

@@ -22,7 +22,8 @@
   <tal:block repeat="widget view/widgets">
     <div id="" class="row"
          tal:attributes="id string:${widget/id}-row"
-         tal:define="key_widget python:view.key_widgets[repeat['widget'].index()];"
+         tal:define="index repeat/widget/index;
+                     key_widget python:view.key_widgets[index];"
          tal:condition="python:widget.mode != 'hidden'">
       <metal:block define-macro="widget-row">
         <tal:block condition="python: key_widget is not None">

src/z3c/form/browser/multi_hidden.pt

@@ -3,7 +3,8 @@
       xmlns:metal="http://xml.zope.org/namespaces/metal"
       tal:omit-tag="">
 <tal:block repeat="widget view/widgets"><tal:block
-        define="key_widget python:view.key_widgets[repeat['widget'].index()];">
+        define="index repeat/widget/index;
+                key_widget python:view.key_widgets[index];">
     <metal:block define-macro="widget-row">
         <div tal:replace="structure key_widget/render" tal:condition="python: key_widget is not None">
           <input size="24" value="" type="text" />

src/z3c/form/browser/multi_input.pt

@@ -9,7 +9,8 @@
     <div id="" class="row"
          tal:attributes="id string:${widget/id}-row"
          tal:condition="python:widget.mode != 'hidden'"
-         tal:define="key_widget python:view.key_widgets[repeat['widget'].index()];">
+         tal:define="index repeat/widget/index;
+                     key_widget python:view.key_widgets[index];">
       <metal:block define-macro="widget-row">
         <tal:condition tal:condition="key_widget/id|nothing">
           <div class="label" tal:condition="view/showLabel">