Add LinterCheck and LinterCheckRun

app/models/linter_check.rb

@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+class LinterCheck < ApplicationRecord
+  has_many :linter_check_runs
+end

app/models/linter_check_run.rb

@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+class LinterCheckRun < ApplicationRecord
+  belongs_to :linter_check
+  belongs_to :testrun
+  belongs_to :file, class_name: 'CodeOcean::File'
+
+  def self.create_from(testrun, assessment)
+    assessment[:detailed_linter_results].each do |linter_result|
+      check = LinterCheck.find_or_create_by!(code: linter_result[:code]) do |new_check|
+        new_check.name = linter_result[:name]
+        new_check.severity = linter_result[:severity]
+      end
+
+      file = testrun.submission.file_by_name(linter_result[:file_name])
+
+      LinterCheckRun.create!(
+        linter_check: check,
+        result: linter_result[:result],
+        line: linter_result[:line],
+        scope: linter_result[:scope],
+        testrun: testrun,
+        file: file
+      )
+    end
+  rescue ActiveRecord::RecordInvalid
+    # Something bad happened. Probably, the RegEx in lib/py_lint_adapter.rb didn't work.
+    Raven.extra_context(testrun: testrun, linter_result: linter_result)
+  end
+end