Update lecture properties and various migration changes

Modified code to remove 'status' field from lecture's table and added 'event_uuid' field. Also refined the 'start_time' field in recordings' table to handle datetime instead of strings. Further, made minor changes in scraping jobs and seeding logic. Implemented these changes to allow lectures to be associated with calendar events and streamlined various fields.

db/migrate/20231001180954_update_lecture_properties.rb

@@ -0,0 +1,8 @@
+class UpdateLectureProperties < ActiveRecord::Migration[7.0]
+  def change
+    remove_column :lectures, :status
+
+    # Optional association with an event in the calendar
+    add_column :lectures, :event_uuid, :string, null: true
+  end
+end

db/migrate/20231001183712_change_recording_start_time_type.rb

@@ -0,0 +1,5 @@
+class ChangeRecordingStartTimeType < ActiveRecord::Migration[7.0]
+  def change
+    change_column :recordings, :start_time, :datetime, using: 'start_time::timestamp'
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2023_10_01_165128) do
+ActiveRecord::Schema[7.0].define(version: 2023_10_01_183712) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -36,18 +36,18 @@ ActiveRecord::Schema[7.0].define(version: 2023_10_01_165128) do
   create_table "lectures", force: :cascade do |t|
     t.string "title", null: false
     t.datetime "start_time", null: false
-    t.integer "status", default: 0, null: false
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.bigint "course_id"
     t.bigint "recording_id"
+    t.string "event_uuid"
     t.index ["course_id"], name: "index_lectures_on_course_id"
     t.index ["recording_id"], name: "index_lectures_on_recording_id"
   end
 
   create_table "recordings", force: :cascade do |t|
     t.string "title", null: false
-    t.string "start_time", null: false
+    t.datetime "start_time", null: false
     t.string "recording_uuid", null: false
     t.bigint "course_id", null: false
     t.datetime "created_at", null: false

db/seeds.rb

@@ -5,3 +5,19 @@
 #
 #   movies = Movie.create([{ name: "Star Wars" }, { name: "Lord of the Rings" }])
 #   Character.create(name: "Luke", movie: movies.first)
+
+Course.create!(
+  title: 'General Relativity',
+  panopto_folders: ["5a77867a-236b-478f-9b0d-af2400ed0989"],
+  toggl_project: 189467492,
+  unit_code: 'PH30101',
+  semester_start_date: Date.parse('2023-02-06'),
+)
+
+Course.create!(
+  title: 'Continuum mechanics',
+  panopto_folders: ["dca2c510-49b4-4a24-9c91-b07701022d03"],
+  toggl_project: 195482340,
+  unit_code: 'MA30253',
+  semester_start_date: START_OF_YEAR_5_SEMESTER_1.to_date,
+)