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,
219
CREATE TABLE exercise (
220
identifier TEXT PRIMARY KEY CHECK (valid_url_name(identifier)),
223
description_xhtml_cache TEXT,
193
CREATE TABLE problem (
194
problemid SERIAL PRIMARY KEY NOT NULL,
195
identifier VARCHAR UNIQUE NOT NULL,
230
199
CREATE TABLE worksheet (
231
worksheetid SERIAL PRIMARY KEY,
232
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
233
identifier TEXT NOT NULL CHECK (valid_url_name(identifier)),
236
data_xhtml_cache TEXT,
237
assessable BOOLEAN NOT NULL,
238
published BOOLEAN NOT NULL DEFAULT true,
239
seq_no INT4 NOT NULL,
240
format TEXT NOT NUll,
241
UNIQUE (offeringid, identifier)
244
CREATE TABLE worksheet_exercise (
245
ws_ex_id SERIAL PRIMARY KEY,
246
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
247
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
248
seq_no INT4 NOT NULL,
249
active BOOLEAN NOT NULL DEFAULT true,
250
optional BOOLEAN NOT NULL,
251
UNIQUE (worksheetid, exerciseid)
254
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,
255
245
loginid INT4 REFERENCES login (loginid) NOT NULL,
256
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
257
246
date TIMESTAMP NOT NULL,
258
attempt TEXT NOT NULL,
247
attempt VARCHAR NOT NULL,
259
248
complete BOOLEAN NOT NULL,
260
249
active BOOLEAN NOT NULL DEFAULT true,
261
PRIMARY KEY (loginid, ws_ex_id, date)
264
CREATE TABLE exercise_save (
265
loginid INT4 REFERENCES login (loginid) NOT NULL,
266
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
267
date TIMESTAMP NOT NULL,
269
PRIMARY KEY (loginid, ws_ex_id)
272
CREATE TABLE test_suite (
273
suiteid SERIAL PRIMARY KEY,
274
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
281
CREATE TABLE test_case (
282
testid SERIAL PRIMARY KEY,
283
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
290
CREATE TABLE suite_variable (
291
varid SERIAL PRIMARY KEY,
292
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
295
var_type TEXT NOT NULL,
299
CREATE TABLE test_case_part (
300
partid SERIAL PRIMARY KEY,
301
testid INT4 REFERENCES test_case (testid) NOT NULL,
302
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)