27
CREATE TABLE subject (
28
subjectid SERIAL PRIMARY KEY NOT NULL,
29
subj_code VARCHAR UNIQUE NOT NULL,
30
subj_name VARCHAR NOT NULL,
31
subj_short_name VARCHAR UNIQUE NOT NULL,
35
CREATE TABLE semester (
36
semesterid SERIAL PRIMARY KEY NOT NULL,
37
year CHAR(4) NOT NULL,
38
semester CHAR(1) NOT NULL,
39
state TEXT NOT NULL CHECK (state IN ('disabled', 'past',
40
'current', 'future')) DEFAULT 'current',
41
UNIQUE (year, semester)
22
44
CREATE TABLE offering (
23
45
offeringid SERIAL PRIMARY KEY NOT NULL,
24
subj_name VARCHAR NOT NULL,
25
subj_code VARCHAR NOT NULL,
26
year CHAR(4) NOT NULL,
27
semester CHAR(1) NOT NULL,
46
subject INT4 REFERENCES subject (subjectid) NOT NULL,
47
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
48
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
49
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
50
UNIQUE (subject, semesterid)
53
-- Projects and groups
54
-- -------------------
56
CREATE TABLE project_set (
57
projectsetid SERIAL PRIMARY KEY NOT NULL,
58
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
59
max_students_per_group INTEGER NOT NULL DEFAULT 4
31
62
CREATE TABLE project (
32
63
projectid SERIAL PRIMARY KEY NOT NULL,
35
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
66
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
39
70
CREATE TABLE project_group (
40
71
groupnm VARCHAR NOT NULL,
41
72
groupid SERIAL PRIMARY KEY NOT NULL,
42
offeringid INT4 REFERENCES offering (offeringid),
73
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
44
75
createdby INT4 REFERENCES login (loginid) NOT NULL,
45
76
epoch TIMESTAMP NOT NULL,
46
UNIQUE (offeringid, groupnm)
77
UNIQUE (projectsetid, groupnm)
80
CREATE OR REPLACE FUNCTION check_group_namespacing_insertupdate()
85
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
86
PERFORM 1 FROM project_group, project_set WHERE project_set.offeringid = oid AND project_group.projectsetid = project_set.projectsetid AND project_group.groupnm = NEW.groupnm;
88
RAISE EXCEPTION ''a project group named % already exists in offering ID %'', NEW.groupnm, oid;
94
CREATE TRIGGER check_group_namespacing
95
BEFORE INSERT OR UPDATE ON project_group
96
FOR EACH ROW EXECUTE PROCEDURE check_group_namespacing_insertupdate();
49
98
CREATE TABLE group_invitation (
50
99
loginid INT4 REFERENCES login (loginid) NOT NULL,
51
100
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
58
107
CREATE TABLE group_member (
59
108
loginid INT4 REFERENCES login (loginid),
60
109
groupid INT4 REFERENCES project_group (groupid),
61
projectid INT4 REFERENCES project (projectid),
62
UNIQUE (loginid,projectid),
63
110
PRIMARY KEY (loginid,groupid)
66
113
CREATE TABLE enrolment (
67
114
loginid INT4 REFERENCES login (loginid),
68
115
offeringid INT4 REFERENCES offering (offeringid),
116
role TEXT NOT NULL CHECK (role IN ('student', 'tutor',
117
'lecturer')) DEFAULT 'student',
70
119
special_result VARCHAR,
72
121
special_supp_result VARCHAR,
123
active BOOL NOT NULL DEFAULT true,
74
124
PRIMARY KEY (loginid,offeringid)
112
CREATE TABLE problem (
113
problemid SERIAL PRIMARY KEY NOT NULL,
114
identifier VARCHAR UNIQUE NOT NULL,
162
CREATE TABLE exercise (
163
identifier TEXT PRIMARY KEY,
118
172
CREATE TABLE worksheet (
119
worksheetid SERIAL PRIMARY KEY NOT NULL,
120
subject VARCHAR NOT NULL,
121
identifier VARCHAR NOT NULL,
124
UNIQUE (subject, identifier)
127
CREATE TABLE worksheet_problem (
128
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
129
problemid INT4 REFERENCES problem (problemid) NOT NULL,
131
PRIMARY KEY (worksheetid, problemid)
134
CREATE TABLE problem_tag (
135
problemid INT4 REFERENCES problem (problemid),
136
tag VARCHAR NOT NULL,
138
standard BOOLEAN NOT NULL,
139
added_by INT4 REFERENCES login (loginid) NOT NULL,
140
date TIMESTAMP NOT NULL,
141
PRIMARY KEY (problemid,added_by,tag)
144
CREATE TABLE problem_test_case (
145
problemid INT4 REFERENCES problem (problemid) NOT NULL,
146
testcaseid SERIAL UNIQUE NOT NULL,
149
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
152
CREATE TABLE problem_test_case_tag (
153
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
154
tag VARCHAR NOT NULL,
156
standard BOOLEAN NOT NULL,
157
added_by INT4 REFERENCES login (loginid) NOT NULL,
158
date TIMESTAMP NOT NULL,
159
PRIMARY KEY (testcaseid,added_by,tag)
162
CREATE TABLE problem_attempt (
163
problemid INT4 REFERENCES problem (problemid) NOT NULL,
173
worksheetid SERIAL PRIMARY KEY,
174
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
175
identifier TEXT NOT NULL,
178
assessable BOOLEAN NOT NULL,
179
seq_no INT4 NOT NULL,
180
format TEXT NOT NUll,
181
UNIQUE (offeringid, identifier)
184
CREATE TABLE worksheet_exercise (
185
ws_ex_id SERIAL PRIMARY KEY,
186
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
187
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
188
seq_no INT4 NOT NULL,
189
active BOOLEAN NOT NULL DEFAULT true,
190
optional BOOLEAN NOT NULL,
191
UNIQUE (worksheetid, exerciseid)
194
CREATE TABLE exercise_attempt (
164
195
loginid INT4 REFERENCES login (loginid) NOT NULL,
196
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
165
197
date TIMESTAMP NOT NULL,
166
attempt VARCHAR NOT NULL,
198
attempt TEXT NOT NULL,
167
199
complete BOOLEAN NOT NULL,
168
PRIMARY KEY (problemid,loginid,date)
171
CREATE TABLE problem_save (
172
problemid INT4 REFERENCES problem (problemid) NOT NULL,
173
loginid INT4 REFERENCES login (loginid) NOT NULL,
174
date TIMESTAMP NOT NULL,
175
text VARCHAR NOT NULL,
176
PRIMARY KEY (problemid,loginid)
179
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
181
CREATE TABLE problem_attempt_breakdown (
182
problemid INT4 REFERENCES problem (problemid) NOT NULL,
183
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
184
loginid INT4 REFERENCES login (loginid) NOT NULL,
185
date TIMESTAMP NOT NULL,
189
CREATE TABLE problem_prerequisite (
190
parent INT4 REFERENCES problem (problemid) NOT NULL,
191
child INT4 REFERENCES problem (problemid) NOT NULL,
192
PRIMARY KEY (parent,child)
200
active BOOLEAN NOT NULL DEFAULT true,
201
PRIMARY KEY (loginid, ws_ex_id, date)
204
CREATE TABLE exercise_save (
205
loginid INT4 REFERENCES login (loginid) NOT NULL,
206
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
207
date TIMESTAMP NOT NULL,
209
PRIMARY KEY (loginid, ws_ex_id)
212
CREATE TABLE test_suite (
213
suiteid SERIAL PRIMARY KEY,
214
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
221
CREATE TABLE test_case (
222
testid SERIAL PRIMARY KEY,
223
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
230
CREATE TABLE suite_variable (
231
varid SERIAL PRIMARY KEY,
232
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
235
var_type TEXT NOT NULL,
239
CREATE TABLE test_case_part (
240
partid SERIAL PRIMARY KEY,
241
testid INT4 REFERENCES test_case (testid) NOT NULL,
242
part_type TEXT NOT NULL,