Create multi-select form for search results

This allows the user to select as many of the results as they want

Author: jonodrew

app/views/admin/member_search/index.html.haml

@@ -10,10 +10,15 @@
   .row 
     .col.col-md-10.col-lg-8
       - if @members.present?
-        %h2 Search Results
-        %ul.list-group
-          - @members.each do |member|
-            %li.list-group-item
-              = link_to member.name, admin_member_path(member)
-      - else
-        %p No members found matching your search criteria.
+        %h2 Select Member
+       
+        - if params[:callback].present?
+          - callback_url = params[:callback]
+        - else 
+          - callback_url = admin_member_search_index_path
+        = simple_form_for :member_pick, url: callback_url, method: :get, html: {:multipart => true, novalidate: true } do |f|
+          .row 
+            .col-12.col-md-6
+            = f.input :name, collection: @members, label: 'Member Name', input_html: { multiple: true }, required: true
+            = f.button :submit, 'Take me back', class: 'btn btn-primary mt-3'
+