Model.insert_all can accept an array of records with separate column …

…names.

activerecord/lib/active_record/insert_all.rb

@@ -15,8 +15,15 @@ def execute(model, ...)
       end
     end
 
-    def initialize(model, connection, inserts, on_duplicate:, update_only: nil, returning: nil, unique_by: nil, record_timestamps: nil)
-      @model, @connection, @inserts = model, connection, inserts.map(&:stringify_keys)
+    def initialize(model, connection, inserts, on_duplicate:, update_only: nil, returning: nil, unique_by: nil, record_timestamps: nil, column_names: nil)
+      @model, @connection, @inserts = model, connection
+
+      if column_names
+        @inserts = inserts.map { |values| column_names.map(&:to_s).zip(values).to_h }
+      else
+        @inserts = inserts.map(&:stringify_keys)
+      end
+
       @on_duplicate, @update_only, @returning, @unique_by = on_duplicate, update_only, returning, unique_by
       @record_timestamps = record_timestamps.nil? ? model.record_timestamps : record_timestamps
 

activerecord/lib/active_record/persistence.rb

@@ -172,8 +172,8 @@ def insert(attributes, returning: nil, unique_by: nil, record_timestamps: nil)
       #     { id: 1, title: "Rework" },
       #     { id: 2, title: "Eloquent Ruby" }
       #   ])
-      def insert_all(attributes, returning: nil, unique_by: nil, record_timestamps: nil)
-        InsertAll.execute(self, attributes, on_duplicate: :skip, returning: returning, unique_by: unique_by, record_timestamps: record_timestamps)
+      def insert_all(attributes, returning: nil, unique_by: nil, record_timestamps: nil, column_names: nil)
+        InsertAll.execute(self, attributes, on_duplicate: :skip, returning: returning, unique_by: unique_by, record_timestamps: record_timestamps, column_names: column_names)
       end
 
       # Inserts a single record into the database in a single SQL INSERT

activerecord/test/cases/insert_all_test.rb

@@ -64,6 +64,26 @@ def test_insert_all
     end
   end
 
+  def test_insert_all_with_column_names
+    assert_difference "Book.count", +10 do
+      column_names = [:name, :author_id]
+      books_data = [
+        ["Rework", 1],
+        ["Patterns of Enterprise Application Architecture", 1],
+        ["Design of Everyday Things", 1],
+        ["Practical Object-Oriented Design in Ruby", 1],
+        ["Clean Code", 1],
+        ["Ruby Under a Microscope", 1],
+        ["The Principles of Product Development Flow", 1],
+        ["Peopleware", 1],
+        ["About Face", 1],
+        ["Eloquent Ruby", 1]
+      ]
+
+      Book.insert_all(books_data, column_names: column_names)
+    end
+  end
+
   def test_insert_all_should_handle_empty_arrays
     skip unless supports_insert_on_duplicate_update?