Allows teachers to use a course multiple times with different points, submissions, and enrollments.
| Name | Type | Default | Nullable | Children | Parents | Comment |
|---|---|---|---|---|---|---|
| course_id | uuid | false | public.courses | The course instance is an instance of this course. | ||
| created_at | timestamp with time zone | now() | false | Timestamp when the record was created. | ||
| deleted_at | timestamp with time zone | true | Timestamp when the record was deleted. If null, the record is not deleted. | |||
| description | varchar(255) | true | ||||
| ends_at | timestamp with time zone | true | Timestamp when the course instance ceases to be available to the students. | |||
| id | uuid | uuid_generate_v4() | false | public.course_background_questions public.course_instance_enrollments public.credit_registrations public.pending_roles public.roles public.student_countries public.user_course_settings | A unique, stable identifier for the record. | |
| name | varchar(255) | true | A human readable description of the course instance, should tell students who are supposed to pick this course instance e.g. “For students that are participating in the Open University course BIRD-001.”. | |||
| starts_at | timestamp with time zone | true | Timestamp when the course instance is available to the students. | |||
| support_email | varchar(255) | true | ||||
| teacher_in_charge_email | varchar(255) | false | ||||
| teacher_in_charge_name | varchar(255) | false | ||||
| updated_at | timestamp with time zone | now() | false | Timestamp when the record was last updated. The field is updated automatically by the set_timestamp trigger. |
| Name | Definition |
|---|---|
| Credit registration | How a completed course module becomes a credit in the University of Helsinki study registry. Enrolment on the course is itself the student’s consent to register the credit; once a student number is proven to be theirs, one ledger row per completion is pushed to Sisu through Suotar and polled until the registry confirms the attainment. |
| Name | Type | Definition |
|---|---|---|
| course_instances_course_id_fkey | FOREIGN KEY | FOREIGN KEY (course_id) REFERENCES courses(id) |
| course_instances_course_id_not_null | n | NOT NULL course_id |
| course_instances_created_at_not_null | n | NOT NULL created_at |
| course_instances_has_only_one_default_instance_per_course | UNIQUE | UNIQUE NULLS NOT DISTINCT (course_id, name, deleted_at) |
| course_instances_id_not_null | n | NOT NULL id |
| course_instances_pkey | PRIMARY KEY | PRIMARY KEY (id) |
| course_instances_support_email_check | CHECK | CHECK (((support_email)::text ~~ ‘%@%’::text)) |
| course_instances_teacher_in_charge_email_check | CHECK | CHECK (((teacher_in_charge_email)::text ~~ ‘%@%’::text)) |
| course_instances_teacher_in_charge_email_not_null | n | NOT NULL teacher_in_charge_email |
| course_instances_teacher_in_charge_name_check | CHECK | CHECK ((TRIM(BOTH FROM teacher_in_charge_name) <> ’’::text)) |
| course_instances_teacher_in_charge_name_not_null | n | NOT NULL teacher_in_charge_name |
| course_instances_updated_at_not_null | n | NOT NULL updated_at |
| Name | Definition |
|---|---|
| course_instances_course_id_idx | CREATE INDEX course_instances_course_id_idx ON public.course_instances USING btree (course_id) |
| course_instances_has_only_one_default_instance_per_course | CREATE UNIQUE INDEX course_instances_has_only_one_default_instance_per_course ON public.course_instances USING btree (course_id, name, deleted_at) NULLS NOT DISTINCT |
| course_instances_pkey | CREATE UNIQUE INDEX course_instances_pkey ON public.course_instances USING btree (id) |
| Name | Definition |
|---|---|
| set_timestamp | CREATE TRIGGER set_timestamp BEFORE UPDATE ON public.course_instances FOR EACH ROW EXECUTE FUNCTION trigger_set_timestamp() |
Generated by tbls