Merge #568

568: Added update documents by function r=brunoocasali a=Nymuxyzo

# Pull Request

## Related issue
Fixes #559

## What does this PR do?
Implementation of "Update documents by function"

## PR checklist
Please check if your PR fulfills the following requirements:
- [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [x] Have you read the contributing guidelines?
- [x] Have you made sure that the title is accurate and descriptive of the changes?


Co-authored-by: Andre <>
Co-authored-by: Clémentine <[email protected]>

.rubocop_todo.yml

@@ -15,7 +15,7 @@ Metrics/BlockLength:
 # Offense count: 4
 # Configuration parameters: CountComments, CountAsOne.
 Metrics/ClassLength:
-  Max: 441
+  Max: 442
 
 # Offense count: 1
 # Configuration parameters: Max, CountKeywordArgs.

lib/meilisearch/index.rb

@@ -185,6 +185,18 @@ def update_documents_in_batches!(documents, batch_size = 1000, primary_key = nil
       update_documents_in_batches(documents, batch_size, primary_key).each(&:await)
     end
 
+    # Update documents by function
+    #
+    # options - A Hash containing the function string and related options
+    #   context:
+    #   filter:
+    #   function:
+    def update_documents_by_function(options)
+      response = http_post "/indexes/#{@uid}/documents/edit", options
+
+      Models::Task.new(response, task_endpoint)
+    end
+
     # Public: Delete documents from an index
     #
     # options: A Hash or an Array containing documents_ids or a hash with filter:.

spec/meilisearch/index/documents_spec.rb

@@ -390,6 +390,30 @@
       end
     end
 
+    describe '#update_documents_by_function' do
+      before do
+        index.add_documents(documents).await
+        index.update_filterable_attributes(['objectId']).await
+      end
+
+      it 'updates documents by function' do
+        enable_edit_documents_by_function(true)
+        expect(index.document(1344)).to include('title' => 'The Hobbit')
+        expect(index.document(456)).to include('title' => 'Le Petit Prince')
+
+        index.update_documents_by_function(
+          {
+            filter: 'objectId = 1344',
+            context: { extra: 'extended' },
+            function: 'doc.title = `${doc.title.to_upper()} - ${context.extra}`'
+          }
+        ).await
+
+        expect(index.document(1344)).to include('title' => 'THE HOBBIT - extended')
+        expect(index.document(456)).to include('title' => 'Le Petit Prince')
+      end
+    end
+
     describe '#delete_document' do
       before { index.add_documents(documents).await }
 

spec/support/experimental_feature_helpers.rb

@@ -8,6 +8,10 @@ def enable_vector_store(toggle)
     configure_feature('vectorStore', toggle)
   end
 
+  def enable_edit_documents_by_function(toggle)
+    configure_feature('editDocumentsByFunction', toggle)
+  end
+
   private
 
   # @param [String] attribute_to_toggle