46
28
subjectid SERIAL PRIMARY KEY NOT NULL,
47
29
subj_code VARCHAR UNIQUE NOT NULL,
48
30
subj_name VARCHAR NOT NULL,
49
subj_short_name VARCHAR UNIQUE NOT NULL CHECK (valid_url_name(subj_short_name))
31
subj_short_name VARCHAR UNIQUE NOT NULL,
52
35
CREATE TABLE semester (
53
36
semesterid SERIAL PRIMARY KEY NOT NULL,
54
year CHAR(4) NOT NULL CHECK (valid_url_name(year)),
55
semester CHAR(1) NOT NULL CHECK (valid_url_name(semester)),
56
state TEXT NOT NULL CHECK (state IN ('disabled', 'past',
57
'current', 'future')) DEFAULT 'current',
37
year CHAR(4) NOT NULL,
38
semester CHAR(1) NOT NULL,
58
40
UNIQUE (year, semester)
43
CREATE OR REPLACE FUNCTION deactivate_semester_enrolments_update()
46
IF OLD.active = true AND NEW.active = false THEN
47
UPDATE enrolment SET active=false WHERE offeringid IN (
48
SELECT offeringid FROM offering WHERE offering.semesterid = NEW.semesterid);
54
CREATE TRIGGER deactivate_semester_enrolments
55
AFTER UPDATE ON semester
56
FOR EACH ROW EXECUTE PROCEDURE deactivate_semester_enrolments_update();
61
58
CREATE TABLE offering (
62
59
offeringid SERIAL PRIMARY KEY NOT NULL,
63
60
subject INT4 REFERENCES subject (subjectid) NOT NULL,
64
61
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
67
62
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
68
63
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
69
64
UNIQUE (subject, semesterid)
75
70
CREATE TABLE project_set (
76
71
projectsetid SERIAL PRIMARY KEY NOT NULL,
77
72
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
78
max_students_per_group INTEGER
73
max_students_per_group INTEGER NOT NULL DEFAULT 4
81
76
CREATE TABLE project (
82
77
projectid SERIAL PRIMARY KEY NOT NULL,
83
short_name TEXT NOT NULL CHECK (valid_url_name(short_name)),
87
80
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
88
deadline TIMESTAMP NOT NULL
91
CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
96
IF TG_OP = ''UPDATE'' THEN
97
IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
101
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
102
PERFORM 1 FROM project, project_set
103
WHERE project_set.offeringid = oid AND
104
project.projectsetid = project_set.projectsetid AND
105
project.short_name = NEW.short_name;
107
RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
111
' LANGUAGE 'plpgsql';
113
CREATE TRIGGER check_project_namespacing
114
BEFORE INSERT OR UPDATE ON project
115
FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
117
84
CREATE TABLE project_group (
118
groupnm VARCHAR NOT NULL CHECK (valid_url_name(groupnm)),
85
groupnm VARCHAR NOT NULL,
119
86
groupid SERIAL PRIMARY KEY NOT NULL,
120
87
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
213
CREATE TABLE exercise (
214
identifier TEXT PRIMARY KEY CHECK (valid_url_name(identifier)),
192
CREATE TABLE problem (
193
problemid SERIAL PRIMARY KEY NOT NULL,
194
identifier VARCHAR UNIQUE NOT NULL,
223
198
CREATE TABLE worksheet (
224
worksheetid SERIAL PRIMARY KEY,
225
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
226
identifier TEXT NOT NULL CHECK (valid_url_name(identifier)),
229
assessable BOOLEAN NOT NULL,
230
seq_no INT4 NOT NULL,
231
format TEXT NOT NUll,
232
UNIQUE (offeringid, identifier)
235
CREATE TABLE worksheet_exercise (
236
ws_ex_id SERIAL PRIMARY KEY,
237
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
238
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
239
seq_no INT4 NOT NULL,
240
active BOOLEAN NOT NULL DEFAULT true,
241
optional BOOLEAN NOT NULL,
242
UNIQUE (worksheetid, exerciseid)
245
CREATE TABLE exercise_attempt (
199
worksheetid SERIAL PRIMARY KEY NOT NULL,
200
subject VARCHAR NOT NULL,
201
identifier VARCHAR NOT NULL,
204
UNIQUE (subject, identifier)
207
CREATE TABLE worksheet_problem (
208
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
209
problemid INT4 REFERENCES problem (problemid) NOT NULL,
211
PRIMARY KEY (worksheetid, problemid)
214
CREATE TABLE problem_tag (
215
problemid INT4 REFERENCES problem (problemid),
216
tag VARCHAR NOT NULL,
218
standard BOOLEAN NOT NULL,
219
added_by INT4 REFERENCES login (loginid) NOT NULL,
220
date TIMESTAMP NOT NULL,
221
PRIMARY KEY (problemid,added_by,tag)
224
CREATE TABLE problem_test_case (
225
problemid INT4 REFERENCES problem (problemid) NOT NULL,
226
testcaseid SERIAL UNIQUE NOT NULL,
229
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
232
CREATE TABLE problem_test_case_tag (
233
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
234
tag VARCHAR NOT NULL,
236
standard BOOLEAN NOT NULL,
237
added_by INT4 REFERENCES login (loginid) NOT NULL,
238
date TIMESTAMP NOT NULL,
239
PRIMARY KEY (testcaseid,added_by,tag)
242
CREATE TABLE problem_attempt (
243
problemid INT4 REFERENCES problem (problemid) NOT NULL,
246
244
loginid INT4 REFERENCES login (loginid) NOT NULL,
247
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
248
245
date TIMESTAMP NOT NULL,
249
attempt TEXT NOT NULL,
246
attempt VARCHAR NOT NULL,
250
247
complete BOOLEAN NOT NULL,
251
248
active BOOLEAN NOT NULL DEFAULT true,
252
PRIMARY KEY (loginid, ws_ex_id, date)
255
CREATE TABLE exercise_save (
256
loginid INT4 REFERENCES login (loginid) NOT NULL,
257
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
258
date TIMESTAMP NOT NULL,
260
PRIMARY KEY (loginid, ws_ex_id)
263
CREATE TABLE test_suite (
264
suiteid SERIAL PRIMARY KEY,
265
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
272
CREATE TABLE test_case (
273
testid SERIAL PRIMARY KEY,
274
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
281
CREATE TABLE suite_variable (
282
varid SERIAL PRIMARY KEY,
283
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
286
var_type TEXT NOT NULL,
290
CREATE TABLE test_case_part (
291
partid SERIAL PRIMARY KEY,
292
testid INT4 REFERENCES test_case (testid) NOT NULL,
293
part_type TEXT NOT NULL,
249
PRIMARY KEY (problemid,loginid,date)
252
CREATE TABLE problem_save (
253
problemid INT4 REFERENCES problem (problemid) NOT NULL,
254
loginid INT4 REFERENCES login (loginid) NOT NULL,
255
date TIMESTAMP NOT NULL,
256
text VARCHAR NOT NULL,
257
PRIMARY KEY (problemid,loginid)
260
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
262
CREATE TABLE problem_attempt_breakdown (
263
problemid INT4 REFERENCES problem (problemid) NOT NULL,
264
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
265
loginid INT4 REFERENCES login (loginid) NOT NULL,
266
date TIMESTAMP NOT NULL,
270
CREATE TABLE problem_prerequisite (
271
parent INT4 REFERENCES problem (problemid) NOT NULL,
272
child INT4 REFERENCES problem (problemid) NOT NULL,
273
PRIMARY KEY (parent,child)