2
CREATE SEQUENCE login_unixid_seq MINVALUE 1000 MAXVALUE 29999 START WITH 5000;
2
login VARCHAR UNIQUE NOT NULL,
5
3
loginid SERIAL PRIMARY KEY NOT NULL,
6
login VARCHAR UNIQUE NOT NULL,
8
state VARCHAR NOT NULL CHECK (state in ('no_agreement', 'pending',
9
'enabled', 'disabled'))
10
DEFAULT 'no_agreement',
11
rolenm VARCHAR NOT NULL CHECK (rolenm in ('anyone', 'student',
13
'lecturer', 'admin')),
14
unixid INT UNIQUE DEFAULT nextval('login_unixid_seq') NOT NULL,
15
nick VARCHAR NOT NULL,
21
fullname VARCHAR NOT NULL,
22
studentid VARCHAR, -- may be null
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,
8
studentid VARCHAR -- may be null
11
CREATE TABLE offering (
12
offeringid SERIAL PRIMARY KEY NOT NULL,
13
subj_name VARCHAR NOT NULL,
14
subj_code VARCHAR NOT NULL,
37
15
year CHAR(4) NOT NULL,
38
16
semester CHAR(1) NOT NULL,
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();
58
CREATE TABLE offering (
59
offeringid SERIAL PRIMARY KEY NOT NULL,
60
subject INT4 REFERENCES subject (subjectid) NOT NULL,
61
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
62
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
63
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
64
UNIQUE (subject, semesterid)
68
CREATE TABLE project_set (
69
projectsetid SERIAL PRIMARY KEY NOT NULL,
70
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
71
max_students_per_group INTEGER NOT NULL DEFAULT 4
74
20
CREATE TABLE project (
75
21
projectid SERIAL PRIMARY KEY NOT NULL,
78
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
24
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
82
28
CREATE TABLE project_group (
83
29
groupnm VARCHAR NOT NULL,
84
30
groupid SERIAL PRIMARY KEY NOT NULL,
85
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
31
offeringid INT4 REFERENCES offering (offeringid),
87
33
createdby INT4 REFERENCES login (loginid) NOT NULL,
88
34
epoch TIMESTAMP NOT NULL,
89
UNIQUE (projectsetid, groupnm)
35
UNIQUE (offeringid, groupnm)
92
CREATE OR REPLACE FUNCTION check_group_namespacing_insertupdate()
97
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
98
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;
100
RAISE EXCEPTION ''a project group named % already exists in offering ID %'', NEW.groupnm, oid;
104
' LANGUAGE 'plpgsql';
106
CREATE TRIGGER check_group_namespacing
107
BEFORE INSERT OR UPDATE ON project_group
108
FOR EACH ROW EXECUTE PROCEDURE check_group_namespacing_insertupdate();
110
38
CREATE TABLE group_invitation (
111
39
loginid INT4 REFERENCES login (loginid) NOT NULL,
112
40
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
135
61
special_supp_result VARCHAR,
137
active BOOL NOT NULL DEFAULT true,
138
63
PRIMARY KEY (loginid,offeringid)
141
CREATE OR REPLACE FUNCTION confirm_active_semester_insertupdate()
146
SELECT semester.active INTO active FROM offering, semester WHERE offeringid=NEW.offeringid AND semester.semesterid = offering.semesterid;
147
IF NOT active AND NEW.active = true THEN
148
RAISE EXCEPTION ''cannot have active enrolment for % in offering %, as the semester is inactive'', NEW.loginid, NEW.offeringid;
152
' LANGUAGE 'plpgsql';
154
CREATE TRIGGER confirm_active_semester
155
BEFORE INSERT OR UPDATE ON enrolment
156
FOR EACH ROW EXECUTE PROCEDURE confirm_active_semester_insertupdate();
158
66
CREATE TABLE assessed (
159
67
assessedid SERIAL PRIMARY KEY NOT NULL,
160
68
loginid INT4 REFERENCES login (loginid),
161
69
groupid INT4 REFERENCES project_group (groupid),
162
projectid INT4 REFERENCES project (projectid) NOT NULL,
163
70
-- exactly one of loginid and groupid must be non-null
164
71
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
165
72
OR (loginid IS NULL AND groupid IS NOT NULL))
168
75
CREATE TABLE project_extension (
169
76
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
77
projectid INT4 REFERENCES project (projectid) NOT NULL,
170
78
deadline TIMESTAMP NOT NULL,
171
79
approver INT4 REFERENCES login (loginid) NOT NULL,
175
CREATE TABLE project_submission (
176
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
177
path VARCHAR NOT NULL,
178
revision INT4 NOT NULL
181
83
CREATE TABLE project_mark (
182
84
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
85
projectid INT4 REFERENCES project (projectid) NOT NULL,
184
87
marker INT4 REFERENCES login (loginid) NOT NULL,
191
94
CREATE TABLE problem (
192
identifier TEXT PRIMARY KEY,
201
CREATE TABLE worksheet (
202
worksheetid SERIAL PRIMARY KEY,
203
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
204
identifier VARCHAR NOT NULL,
207
UNIQUE (offeringid, identifier)
210
CREATE TABLE worksheet_problem (
211
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
212
problemid TEXT REFERENCES problem (identifier) NOT NULL,
214
PRIMARY KEY (worksheetid, problemid)
95
problemid SERIAL PRIMARY KEY NOT NULL,
99
CREATE TABLE problem_tag (
100
problemid INT4 REFERENCES problem (problemid),
101
tag VARCHAR NOT NULL,
103
standard BOOLEAN NOT NULL,
104
added_by INT4 REFERENCES login (loginid) NOT NULL,
105
date TIMESTAMP NOT NULL,
106
PRIMARY KEY (problemid,added_by,tag)
109
CREATE TABLE problem_test_case (
110
problemid INT4 REFERENCES problem (problemid) NOT NULL,
111
testcaseid SERIAL UNIQUE NOT NULL,
114
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
117
CREATE TABLE problem_test_case_tag (
118
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
119
tag VARCHAR NOT NULL,
121
standard BOOLEAN NOT NULL,
122
added_by INT4 REFERENCES login (loginid) NOT NULL,
123
date TIMESTAMP NOT NULL,
124
PRIMARY KEY (testcaseid,added_by,tag)
217
127
CREATE TABLE problem_attempt (
218
problemid TEXT REFERENCES problem (identifier) NOT NULL,
128
problemid INT4 REFERENCES problem (problemid) NOT NULL,
219
129
loginid INT4 REFERENCES login (loginid) NOT NULL,
220
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
221
130
date TIMESTAMP NOT NULL,
222
131
attempt VARCHAR NOT NULL,
223
132
complete BOOLEAN NOT NULL,
224
active BOOLEAN NOT NULL DEFAULT true,
225
PRIMARY KEY (problemid,loginid,worksheetid,date)
133
PRIMARY KEY (problemid,loginid,date)
228
CREATE TABLE problem_save (
229
problemid TEXT REFERENCES problem (identifier) NOT NULL,
136
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
138
CREATE TABLE problem_attempt_breakdown (
139
problemid INT4 REFERENCES problem (problemid) NOT NULL,
140
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
230
141
loginid INT4 REFERENCES login (loginid) NOT NULL,
231
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
232
142
date TIMESTAMP NOT NULL,
234
PRIMARY KEY (problemid,loginid, worksheetid)
237
CREATE TABLE test_suite (
238
suiteid SERIAL PRIMARY KEY,
239
problemid TEXT REFERENCES problem (identifier) NOT NULL,
246
CREATE TABLE test_case (
247
testid SERIAL PRIMARY KEY,
248
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
255
CREATE TABLE suite_variables (
256
varid SERIAL PRIMARY KEY,
257
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
260
var_type TEXT NOT NULL,
264
CREATE TABLE test_case_parts (
265
partid SERIAL PRIMARY KEY,
266
testid INT4 REFERENCES test_case (testid) NOT NULL,
267
part_type TEXT NOT NULL,
146
CREATE TABLE problem_prerequisite (
147
parent INT4 REFERENCES problem (problemid) NOT NULL,
148
child INT4 REFERENCES problem (problemid) NOT NULL,
149
PRIMARY KEY (parent,child)