28
29
subjectid SERIAL PRIMARY KEY NOT NULL,
29
30
subj_code VARCHAR UNIQUE NOT NULL,
30
31
subj_name VARCHAR NOT NULL,
31
subj_short_name VARCHAR UNIQUE NOT NULL
32
subj_short_name VARCHAR UNIQUE NOT NULL,
34
36
CREATE TABLE semester (
35
37
semesterid SERIAL PRIMARY KEY NOT NULL,
36
38
year CHAR(4) NOT NULL,
37
39
semester CHAR(1) NOT NULL,
38
state TEXT NOT NULL CHECK (state IN ('disabled', 'past',
39
'current', 'future')) DEFAULT 'current',
40
41
UNIQUE (year, semester)
44
CREATE OR REPLACE FUNCTION deactivate_semester_enrolments_update()
47
IF OLD.active = true AND NEW.active = false THEN
48
UPDATE enrolment SET active=false WHERE offeringid IN (
49
SELECT offeringid FROM offering WHERE offering.semesterid = NEW.semesterid);
55
CREATE TRIGGER deactivate_semester_enrolments
56
AFTER UPDATE ON semester
57
FOR EACH ROW EXECUTE PROCEDURE deactivate_semester_enrolments_update();
43
59
CREATE TABLE offering (
44
60
offeringid SERIAL PRIMARY KEY NOT NULL,
45
61
subject INT4 REFERENCES subject (subjectid) NOT NULL,
46
62
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
49
63
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
50
64
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
51
65
UNIQUE (subject, semesterid)
57
71
CREATE TABLE project_set (
58
72
projectsetid SERIAL PRIMARY KEY NOT NULL,
59
73
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
60
max_students_per_group INTEGER
74
max_students_per_group INTEGER NOT NULL DEFAULT 4
63
77
CREATE TABLE project (
64
78
projectid SERIAL PRIMARY KEY NOT NULL,
65
short_name TEXT NOT NULL,
69
81
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
70
deadline TIMESTAMP NOT NULL
73
CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
78
IF TG_OP = ''UPDATE'' THEN
79
IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
83
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
84
PERFORM 1 FROM project, project_set
85
WHERE project_set.offeringid = oid AND
86
project.projectsetid = project_set.projectsetid AND
87
project.short_name = NEW.short_name;
89
RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
95
CREATE TRIGGER check_project_namespacing
96
BEFORE INSERT OR UPDATE ON project
97
FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
99
85
CREATE TABLE project_group (
100
86
groupnm VARCHAR NOT NULL,
101
87
groupid SERIAL PRIMARY KEY NOT NULL,
195
CREATE TABLE exercise (
196
identifier TEXT PRIMARY KEY,
193
CREATE TABLE problem (
194
problemid SERIAL PRIMARY KEY NOT NULL,
195
identifier VARCHAR UNIQUE NOT NULL,
205
199
CREATE TABLE worksheet (
206
worksheetid SERIAL PRIMARY KEY,
207
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
208
identifier TEXT NOT NULL,
211
assessable BOOLEAN NOT NULL,
212
seq_no INT4 NOT NULL,
213
format TEXT NOT NUll,
214
UNIQUE (offeringid, identifier)
217
CREATE TABLE worksheet_exercise (
218
ws_ex_id SERIAL PRIMARY KEY,
219
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
220
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
221
seq_no INT4 NOT NULL,
222
active BOOLEAN NOT NULL DEFAULT true,
223
optional BOOLEAN NOT NULL,
224
UNIQUE (worksheetid, exerciseid)
227
CREATE TABLE exercise_attempt (
200
worksheetid SERIAL PRIMARY KEY NOT NULL,
201
subject VARCHAR NOT NULL,
202
identifier VARCHAR NOT NULL,
205
UNIQUE (subject, identifier)
208
CREATE TABLE worksheet_problem (
209
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
210
problemid INT4 REFERENCES problem (problemid) NOT NULL,
212
PRIMARY KEY (worksheetid, problemid)
215
CREATE TABLE problem_tag (
216
problemid INT4 REFERENCES problem (problemid),
217
tag VARCHAR NOT NULL,
219
standard BOOLEAN NOT NULL,
220
added_by INT4 REFERENCES login (loginid) NOT NULL,
221
date TIMESTAMP NOT NULL,
222
PRIMARY KEY (problemid,added_by,tag)
225
CREATE TABLE problem_test_case (
226
problemid INT4 REFERENCES problem (problemid) NOT NULL,
227
testcaseid SERIAL UNIQUE NOT NULL,
230
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
233
CREATE TABLE problem_test_case_tag (
234
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
235
tag VARCHAR NOT NULL,
237
standard BOOLEAN NOT NULL,
238
added_by INT4 REFERENCES login (loginid) NOT NULL,
239
date TIMESTAMP NOT NULL,
240
PRIMARY KEY (testcaseid,added_by,tag)
243
CREATE TABLE problem_attempt (
244
problemid INT4 REFERENCES problem (problemid) NOT NULL,
228
245
loginid INT4 REFERENCES login (loginid) NOT NULL,
229
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
230
246
date TIMESTAMP NOT NULL,
231
attempt TEXT NOT NULL,
247
attempt VARCHAR NOT NULL,
232
248
complete BOOLEAN NOT NULL,
233
249
active BOOLEAN NOT NULL DEFAULT true,
234
PRIMARY KEY (loginid, ws_ex_id, date)
237
CREATE TABLE exercise_save (
238
loginid INT4 REFERENCES login (loginid) NOT NULL,
239
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
240
date TIMESTAMP NOT NULL,
242
PRIMARY KEY (loginid, ws_ex_id)
245
CREATE TABLE test_suite (
246
suiteid SERIAL PRIMARY KEY,
247
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
254
CREATE TABLE test_case (
255
testid SERIAL PRIMARY KEY,
256
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
263
CREATE TABLE suite_variable (
264
varid SERIAL PRIMARY KEY,
265
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
268
var_type TEXT NOT NULL,
272
CREATE TABLE test_case_part (
273
partid SERIAL PRIMARY KEY,
274
testid INT4 REFERENCES test_case (testid) NOT NULL,
275
part_type TEXT NOT NULL,
250
PRIMARY KEY (problemid,loginid,date)
253
CREATE TABLE problem_save (
254
problemid INT4 REFERENCES problem (problemid) NOT NULL,
255
loginid INT4 REFERENCES login (loginid) NOT NULL,
256
date TIMESTAMP NOT NULL,
257
text VARCHAR NOT NULL,
258
PRIMARY KEY (problemid,loginid)
261
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
263
CREATE TABLE problem_attempt_breakdown (
264
problemid INT4 REFERENCES problem (problemid) NOT NULL,
265
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
266
loginid INT4 REFERENCES login (loginid) NOT NULL,
267
date TIMESTAMP NOT NULL,
271
CREATE TABLE problem_prerequisite (
272
parent INT4 REFERENCES problem (problemid) NOT NULL,
273
child INT4 REFERENCES problem (problemid) NOT NULL,
274
PRIMARY KEY (parent,child)