From e34135f6779f58852558e03b1b95534c11ca07ae Mon Sep 17 00:00:00 2001
From: Tim Pierce <twp@curoverse.com>
Date: Tue, 28 Oct 2014 11:14:47 -0400
Subject: [PATCH] 4088: filter collection file view by regex

Added a "Filter" field for supplying a regular expression to filter
filenames. Updated integration tests.
---
 .../views/collections/_show_files.html.erb    | 22 ++++++++++++
 .../test/integration/collections_test.rb      | 34 +++++++++++++++++++
 services/api/test/fixtures/collections.yml    |  4 +--
 3 files changed, 58 insertions(+), 2 deletions(-)

diff --git a/apps/workbench/app/views/collections/_show_files.html.erb b/apps/workbench/app/views/collections/_show_files.html.erb
index 051fbf4f62..9b39b61d44 100644
--- a/apps/workbench/app/views/collections/_show_files.html.erb
+++ b/apps/workbench/app/views/collections/_show_files.html.erb
@@ -17,10 +17,29 @@
         </ul>
       </div>
     </div>
+    <div class="pull-right">
+      <%= form_tag collection_path(@object.uuid), {method: 'get'} do %>
+        <input class="form-control" id="file_regex" name="file_regex" value="<%= params[:file_regex] %>" type="text"/>
+        <button id="file_regex_submit" type="submit" class="btn btn-primary" autofocus>Filter</button>
+      <% end %>
+    </div>
   </div>
   <p/>
   <% end %>
 
+<%
+  file_regex = nil
+  if params[:file_regex]
+    begin
+      file_regex = Regexp.new(params[:file_regex])
+    rescue RegexpError
+      # If the pattern is not a valid regex, quote it
+      # (i.e. use it as a simple substring search)
+      file_regex = Regexp.new(Regexp.quote(params[:file_regex]))
+    end
+  end
+%>
+
 <% file_tree = @object.andand.files_tree %>
 <% if file_tree.nil? or file_tree.empty? %>
   <p>This collection is empty.</p>
@@ -40,6 +59,9 @@
       </div>
       <ul class="collection_files">
     <% else %>
+      <% if !file_regex.nil? and !file_regex.match(filename) %>
+        <% next %>
+      <% end %>
       <% link_params = {controller: 'collections', action: 'show_file',
                         uuid: @object.portable_data_hash, file: file_path, size: size} %>
        <div class="collection_files_row">
diff --git a/apps/workbench/test/integration/collections_test.rb b/apps/workbench/test/integration/collections_test.rb
index 625e4819ec..ea42052a3e 100644
--- a/apps/workbench/test/integration/collections_test.rb
+++ b/apps/workbench/test/integration/collections_test.rb
@@ -200,4 +200,38 @@ class CollectionsTest < ActionDispatch::IntegrationTest
     assert page.has_no_text?("Activity")
     assert page.has_no_text?("Sharing and permissions")
   end
+
+  test "Filtering collection files by regexp" do
+    col = api_fixture('collections', 'multilevel_collection_1')
+    visit page_with_token('active', "/collections/#{col['uuid']}")
+
+    # Test when only some files match the regex
+    page.find_field('file_regex').set('file[12]')
+    find('button#file_regex_submit').click
+    assert page.has_text?("file1")
+    assert page.has_text?("file2")
+    assert page.has_no_text?("file3")
+
+    # Test all files matching the regex
+    page.find_field('file_regex').set('file[123]')
+    find('button#file_regex_submit').click
+    assert page.has_text?("file1")
+    assert page.has_text?("file2")
+    assert page.has_text?("file3")
+
+    # Test no files matching the regex
+    page.find_field('file_regex').set('file9')
+    find('button#file_regex_submit').click
+    assert page.has_no_text?("file1")
+    assert page.has_no_text?("file2")
+    assert page.has_no_text?("file3")
+
+    # Syntactically invalid regex
+    # Page loads, but does not match any files
+    page.find_field('file_regex').set('file[2')
+    find('button#file_regex_submit').click
+    assert page.has_no_text?("file1")
+    assert page.has_no_text?("file2")
+    assert page.has_no_text?("file3")
+  end
 end
diff --git a/services/api/test/fixtures/collections.yml b/services/api/test/fixtures/collections.yml
index 045e1c7190..777c1d319a 100644
--- a/services/api/test/fixtures/collections.yml
+++ b/services/api/test/fixtures/collections.yml
@@ -61,7 +61,7 @@ baz_file:
 multilevel_collection_1:
   uuid: zzzzz-4zz18-pyw8yp9g3pr7irn
   portable_data_hash: 1fd08fc162a5c6413070a8bd0bffc818+150
-  owner_uuid: qr1hi-tpzed-000000000000000
+  owner_uuid: zzzzz-tpzed-xurymjxw79nv3jz
   created_at: 2014-02-03T17:22:54Z
   modified_by_client_uuid: zzzzz-ozdt8-brczlopd8u8d0jr
   modified_by_user_uuid: zzzzz-tpzed-d9tiejq69daie8f
@@ -74,7 +74,7 @@ multilevel_collection_2:
   uuid: zzzzz-4zz18-45xf9hw1sxkhl6q
   # All of this collection's files are deep in subdirectories.
   portable_data_hash: 80cf6dd2cf079dd13f272ec4245cb4a8+48
-  owner_uuid: qr1hi-tpzed-000000000000000
+  owner_uuid: zzzzz-tpzed-xurymjxw79nv3jz
   created_at: 2014-02-03T17:22:54Z
   modified_by_client_uuid: zzzzz-ozdt8-brczlopd8u8d0jr
   modified_by_user_uuid: zzzzz-tpzed-d9tiejq69daie8f
-- 
2.30.2