Refactor Leva's RunnerResult to add runner_class attribute

This commit adds the `runner_class` attribute to the `RunnerResult` model in the Leva module. The `runner_class` attribute is used to store the name of the runner class associated with the result. This change includes modifications to the model, migration, and tests.

Related to recent code changes that added the `runner_class` attribute to the `RunnerResult` model and migration files.

app/models/leva/runner_result.rb

@@ -5,6 +5,7 @@
 #  id                :integer          not null, primary key
 #  prediction        :text
 #  prompt_version    :integer
+#  runner_class      :string
 #  created_at        :datetime         not null
 #  updated_at        :datetime         not null
 #  dataset_record_id :integer          not null
@@ -32,6 +33,7 @@ class RunnerResult < ApplicationRecord
 
     validates :prediction, presence: true
     validates :prompt, presence: true
+    validates :runner_class, presence: true
 
     delegate :ground_truth, to: :dataset_record
 
@@ -51,4 +53,4 @@ def runner
       @runner ||= runner_class.constantize.new
     end
   end
-end
+end

db/migrate/20240912183556_add_runner_class_to_leva_runner_results.rb

@@ -0,0 +1,5 @@
+class AddRunnerClassToLevaRunnerResults < ActiveRecord::Migration[7.2]
+  def change
+    add_column :leva_runner_results, :runner_class, :string
+  end
+end

lib/leva.rb

@@ -72,6 +72,7 @@ def execute_and_store(experiment, dataset_record, prompt)
         dataset_record: dataset_record,
         prompt: prompt,
         prediction: result,
+        runner_class: self.class.name
       )
     end
 

test/dummy/db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.2].define(version: 2024_08_22_143201) do
+ActiveRecord::Schema[7.2].define(version: 2024_09_12_183556) do
   create_table "leva_dataset_records", force: :cascade do |t|
     t.integer "dataset_id", null: false
     t.string "recordable_type", null: false
@@ -75,6 +75,7 @@
     t.datetime "updated_at", null: false
     t.integer "prompt_version"
     t.integer "prompt_id", null: false
+    t.string "runner_class"
     t.index ["dataset_record_id"], name: "index_leva_runner_results_on_dataset_record_id"
     t.index ["experiment_id"], name: "index_leva_runner_results_on_experiment_id"
     t.index ["prompt_id"], name: "index_leva_runner_results_on_prompt_id"

test/models/leva/runner_result_test.rb

@@ -5,6 +5,7 @@
 #  id                :integer          not null, primary key
 #  prediction        :text
 #  prompt_version    :integer
+#  runner_class      :string
 #  created_at        :datetime         not null
 #  updated_at        :datetime         not null
 #  dataset_record_id :integer          not null