46
29
subjectid SERIAL PRIMARY KEY NOT NULL,
47
30
subj_code VARCHAR UNIQUE NOT NULL,
48
31
subj_name VARCHAR NOT NULL,
49
subj_short_name VARCHAR UNIQUE NOT NULL CHECK (valid_url_name(subj_short_name))
32
subj_short_name VARCHAR UNIQUE NOT NULL,
52
36
CREATE TABLE semester (
53
37
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',
38
year CHAR(4) NOT NULL,
39
semester CHAR(1) NOT NULL,
58
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();
61
59
CREATE TABLE offering (
62
60
offeringid SERIAL PRIMARY KEY NOT NULL,
63
61
subject INT4 REFERENCES subject (subjectid) NOT NULL,
64
62
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
67
show_worksheet_marks BOOLEAN NOT NULL DEFAULT false,
68
worksheet_cutoff TIMESTAMP,
69
63
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
70
64
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
71
65
UNIQUE (subject, semesterid)
77
71
CREATE TABLE project_set (
78
72
projectsetid SERIAL PRIMARY KEY NOT NULL,
79
73
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
80
max_students_per_group INTEGER
74
max_students_per_group INTEGER NOT NULL DEFAULT 4
83
77
CREATE TABLE project (
84
78
projectid SERIAL PRIMARY KEY NOT NULL,
85
short_name TEXT NOT NULL CHECK (valid_url_name(short_name)),
89
81
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
90
deadline TIMESTAMP NOT NULL
93
CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
98
IF TG_OP = ''UPDATE'' THEN
99
IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
103
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
104
PERFORM 1 FROM project, project_set
105
WHERE project_set.offeringid = oid AND
106
project.projectsetid = project_set.projectsetid AND
107
project.short_name = NEW.short_name;
109
RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
113
' LANGUAGE 'plpgsql';
115
CREATE TRIGGER check_project_namespacing
116
BEFORE INSERT OR UPDATE ON project
117
FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
119
85
CREATE TABLE project_group (
120
groupnm VARCHAR NOT NULL CHECK (valid_url_name(groupnm)),
86
groupnm VARCHAR NOT NULL,
121
87
groupid SERIAL PRIMARY KEY NOT NULL,
122
88
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
215
CREATE TABLE exercise (
216
identifier TEXT PRIMARY KEY CHECK (valid_url_name(identifier)),
193
CREATE TABLE problem (
194
problemid SERIAL PRIMARY KEY NOT NULL,
195
identifier VARCHAR UNIQUE NOT NULL,
225
199
CREATE TABLE worksheet (
226
worksheetid SERIAL PRIMARY KEY,
227
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
228
identifier TEXT NOT NULL CHECK (valid_url_name(identifier)),
231
assessable BOOLEAN NOT NULL,
232
published BOOLEAN NOT NULL DEFAULT true,
233
seq_no INT4 NOT NULL,
234
format TEXT NOT NUll,
235
UNIQUE (offeringid, identifier)
238
CREATE TABLE worksheet_exercise (
239
ws_ex_id SERIAL PRIMARY KEY,
240
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
241
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
242
seq_no INT4 NOT NULL,
243
active BOOLEAN NOT NULL DEFAULT true,
244
optional BOOLEAN NOT NULL,
245
UNIQUE (worksheetid, exerciseid)
248
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,
249
245
loginid INT4 REFERENCES login (loginid) NOT NULL,
250
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
251
246
date TIMESTAMP NOT NULL,
252
attempt TEXT NOT NULL,
247
attempt VARCHAR NOT NULL,
253
248
complete BOOLEAN NOT NULL,
254
249
active BOOLEAN NOT NULL DEFAULT true,
255
PRIMARY KEY (loginid, ws_ex_id, date)
258
CREATE TABLE exercise_save (
259
loginid INT4 REFERENCES login (loginid) NOT NULL,
260
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
261
date TIMESTAMP NOT NULL,
263
PRIMARY KEY (loginid, ws_ex_id)
266
CREATE TABLE test_suite (
267
suiteid SERIAL PRIMARY KEY,
268
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
275
CREATE TABLE test_case (
276
testid SERIAL PRIMARY KEY,
277
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
284
CREATE TABLE suite_variable (
285
varid SERIAL PRIMARY KEY,
286
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
289
var_type TEXT NOT NULL,
293
CREATE TABLE test_case_part (
294
partid SERIAL PRIMARY KEY,
295
testid INT4 REFERENCES test_case (testid) NOT NULL,
296
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)