3
CREATE OR REPLACE FUNCTION valid_url_name(name text) RETURNS boolean AS
6
RETURN name ~ E'^[a-z0-9][a-z0-9_\+\.\-]*$';
10
CREATE OR REPLACE FUNCTION valid_login_name(name text) RETURNS boolean AS
13
RETURN name ~ E'^[a-z0-9][a-z0-9@_\+\.\-]*$';
15
$$ LANGUAGE 'plpgsql';
17
CREATE SEQUENCE login_unixid_seq MINVALUE 1000 MAXVALUE 29999 START WITH 5000;
19
1
CREATE TABLE login (
20
2
loginid SERIAL PRIMARY KEY NOT NULL,
21
login VARCHAR UNIQUE NOT NULL CHECK (valid_login_name(login)),
3
login VARCHAR UNIQUE NOT NULL,
23
5
state VARCHAR NOT NULL CHECK (state in ('no_agreement', 'pending',
24
'enabled', 'disabled'))
25
DEFAULT 'no_agreement',
26
admin BOOLEAN NOT NULL DEFAULT false,
27
unixid INT UNIQUE DEFAULT nextval('login_unixid_seq') NOT NULL,
6
'enabled', 'disabled')),
7
rolenm VARCHAR NOT NULL CHECK (rolenm in ('guest', 'student',
10
unixid INT UNIQUE NOT NULL, -- unix user id
28
11
nick VARCHAR NOT NULL,
29
12
pass_exp TIMESTAMP,
30
13
acct_exp TIMESTAMP,
31
14
last_login TIMESTAMP,
34
16
fullname VARCHAR NOT NULL,
35
studentid VARCHAR, -- may be null
40
CREATE TABLE subject (
41
subjectid SERIAL PRIMARY KEY NOT NULL,
42
subj_code VARCHAR UNIQUE NOT NULL,
43
subj_name VARCHAR NOT NULL,
44
subj_short_name VARCHAR UNIQUE NOT NULL CHECK (valid_url_name(subj_short_name))
47
CREATE TABLE semester (
48
semesterid SERIAL PRIMARY KEY NOT NULL,
49
year CHAR(4) NOT NULL CHECK (valid_url_name(year)),
50
semester CHAR(1) NOT NULL CHECK (valid_url_name(semester)),
51
state TEXT NOT NULL CHECK (state IN ('disabled', 'past',
52
'current', 'future')) DEFAULT 'current',
53
UNIQUE (year, semester)
17
studentid VARCHAR -- may be null
56
20
CREATE TABLE offering (
57
21
offeringid SERIAL PRIMARY KEY NOT NULL,
58
subject INT4 REFERENCES subject (subjectid) NOT NULL,
59
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
62
show_worksheet_marks BOOLEAN NOT NULL DEFAULT false,
63
worksheet_cutoff TIMESTAMP,
64
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
65
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
66
UNIQUE (subject, semesterid)
70
CREATE TABLE project_set (
71
projectsetid SERIAL PRIMARY KEY NOT NULL,
72
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
73
max_students_per_group INTEGER
22
subj_name VARCHAR NOT NULL,
23
subj_code VARCHAR NOT NULL,
24
year CHAR(4) NOT NULL,
25
semester CHAR(1) NOT NULL,
76
29
CREATE TABLE project (
77
30
projectid SERIAL PRIMARY KEY NOT NULL,
78
short_name TEXT NOT NULL CHECK (valid_url_name(short_name)),
82
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
83
deadline TIMESTAMP NOT NULL
33
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
86
CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
91
IF TG_OP = ''UPDATE'' THEN
92
IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
96
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
97
PERFORM 1 FROM project, project_set
98
WHERE project_set.offeringid = oid AND
99
project.projectsetid = project_set.projectsetid AND
100
project.short_name = NEW.short_name;
102
RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
106
' LANGUAGE 'plpgsql';
108
CREATE TRIGGER check_project_namespacing
109
BEFORE INSERT OR UPDATE ON project
110
FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
112
37
CREATE TABLE project_group (
113
groupnm VARCHAR NOT NULL CHECK (valid_url_name(groupnm)),
38
groupnm VARCHAR NOT NULL,
114
39
groupid SERIAL PRIMARY KEY NOT NULL,
115
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
40
offeringid INT4 REFERENCES offering (offeringid),
117
42
createdby INT4 REFERENCES login (loginid) NOT NULL,
118
43
epoch TIMESTAMP NOT NULL,
119
UNIQUE (projectsetid, groupnm)
44
UNIQUE (offeringid, groupnm)
122
CREATE OR REPLACE FUNCTION check_group_namespacing_insertupdate()
127
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
128
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;
130
RAISE EXCEPTION ''a project group named % already exists in offering ID %'', NEW.groupnm, oid;
134
' LANGUAGE 'plpgsql';
136
CREATE TRIGGER check_group_namespacing
137
BEFORE INSERT OR UPDATE ON project_group
138
FOR EACH ROW EXECUTE PROCEDURE check_group_namespacing_insertupdate();
140
47
CREATE TABLE group_invitation (
141
48
loginid INT4 REFERENCES login (loginid) NOT NULL,
142
49
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
156
56
CREATE TABLE group_member (
157
57
loginid INT4 REFERENCES login (loginid),
158
58
groupid INT4 REFERENCES project_group (groupid),
59
projectid INT4 REFERENCES project (projectid),
60
UNIQUE (loginid,projectid),
159
61
PRIMARY KEY (loginid,groupid)
162
64
CREATE TABLE enrolment (
163
65
loginid INT4 REFERENCES login (loginid),
164
66
offeringid INT4 REFERENCES offering (offeringid),
165
role TEXT NOT NULL CHECK (role IN ('student', 'tutor',
166
'lecturer')) DEFAULT 'student',
168
68
special_result VARCHAR,
170
70
special_supp_result VARCHAR,
172
active BOOL NOT NULL DEFAULT true,
173
72
PRIMARY KEY (loginid,offeringid)
177
76
assessedid SERIAL PRIMARY KEY NOT NULL,
178
77
loginid INT4 REFERENCES login (loginid),
179
78
groupid INT4 REFERENCES project_group (groupid),
180
projectid INT4 REFERENCES project (projectid) NOT NULL,
181
79
-- exactly one of loginid and groupid must be non-null
182
80
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
183
81
OR (loginid IS NULL AND groupid IS NOT NULL))
186
84
CREATE TABLE project_extension (
187
extensionid SERIAL PRIMARY KEY,
188
85
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
86
projectid INT4 REFERENCES project (projectid) NOT NULL,
189
87
deadline TIMESTAMP NOT NULL,
190
88
approver INT4 REFERENCES login (loginid) NOT NULL,
194
CREATE TABLE project_submission (
195
submissionid SERIAL PRIMARY KEY,
196
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
197
path VARCHAR NOT NULL,
198
revision INT4 NOT NULL,
199
date_submitted TIMESTAMP NOT NULL,
200
submitter INT4 REFERENCES login (loginid) NOT NULL
203
92
CREATE TABLE project_mark (
204
93
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
94
projectid INT4 REFERENCES project (projectid) NOT NULL,
206
96
marker INT4 REFERENCES login (loginid) NOT NULL,
213
CREATE TABLE exercise (
214
identifier TEXT PRIMARY KEY CHECK (valid_url_name(identifier)),
223
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
published BOOLEAN NOT NULL DEFAULT true,
231
seq_no INT4 NOT NULL,
232
format TEXT NOT NUll,
233
UNIQUE (offeringid, identifier)
236
CREATE TABLE worksheet_exercise (
237
ws_ex_id SERIAL PRIMARY KEY,
238
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
239
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
240
seq_no INT4 NOT NULL,
241
active BOOLEAN NOT NULL DEFAULT true,
242
optional BOOLEAN NOT NULL,
243
UNIQUE (worksheetid, exerciseid)
246
CREATE TABLE exercise_attempt (
103
CREATE TABLE problem (
104
problemid SERIAL PRIMARY KEY NOT NULL,
108
CREATE TABLE problem_tag (
109
problemid INT4 REFERENCES problem (problemid),
110
tag VARCHAR NOT NULL,
112
standard BOOLEAN NOT NULL,
113
added_by INT4 REFERENCES login (loginid) NOT NULL,
114
date TIMESTAMP NOT NULL,
115
PRIMARY KEY (problemid,added_by,tag)
118
CREATE TABLE problem_test_case (
119
problemid INT4 REFERENCES problem (problemid) NOT NULL,
120
testcaseid SERIAL UNIQUE NOT NULL,
123
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
126
CREATE TABLE problem_test_case_tag (
127
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
128
tag VARCHAR NOT NULL,
130
standard BOOLEAN NOT NULL,
131
added_by INT4 REFERENCES login (loginid) NOT NULL,
132
date TIMESTAMP NOT NULL,
133
PRIMARY KEY (testcaseid,added_by,tag)
136
CREATE TABLE problem_attempt (
137
problemid INT4 REFERENCES problem (problemid) NOT NULL,
247
138
loginid INT4 REFERENCES login (loginid) NOT NULL,
248
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
249
139
date TIMESTAMP NOT NULL,
250
attempt TEXT NOT NULL,
140
attempt VARCHAR NOT NULL,
251
141
complete BOOLEAN NOT NULL,
252
active BOOLEAN NOT NULL DEFAULT true,
253
PRIMARY KEY (loginid, ws_ex_id, date)
142
PRIMARY KEY (problemid,loginid,date)
256
CREATE TABLE exercise_save (
145
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
147
CREATE TABLE problem_attempt_breakdown (
148
problemid INT4 REFERENCES problem (problemid) NOT NULL,
149
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
257
150
loginid INT4 REFERENCES login (loginid) NOT NULL,
258
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
259
151
date TIMESTAMP NOT NULL,
261
PRIMARY KEY (loginid, ws_ex_id)
264
CREATE TABLE test_suite (
265
suiteid SERIAL PRIMARY KEY,
266
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
273
CREATE TABLE test_case (
274
testid SERIAL PRIMARY KEY,
275
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
282
CREATE TABLE suite_variable (
283
varid SERIAL PRIMARY KEY,
284
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
287
var_type TEXT NOT NULL,
291
CREATE TABLE test_case_part (
292
partid SERIAL PRIMARY KEY,
293
testid INT4 REFERENCES test_case (testid) NOT NULL,
294
part_type TEXT NOT NULL,
155
CREATE TABLE problem_prerequisite (
156
parent INT4 REFERENCES problem (problemid) NOT NULL,
157
child INT4 REFERENCES problem (problemid) NOT NULL,
158
PRIMARY KEY (parent,child)