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 ('anyone', '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,
37
17
fullname VARCHAR NOT NULL,
38
studentid VARCHAR, -- may be null
43
CREATE TABLE subject (
44
subjectid SERIAL PRIMARY KEY NOT NULL,
45
subj_code VARCHAR UNIQUE NOT NULL,
46
subj_name VARCHAR NOT NULL,
47
subj_short_name VARCHAR UNIQUE NOT NULL CHECK (valid_url_name(subj_short_name))
50
CREATE TABLE semester (
51
semesterid SERIAL PRIMARY KEY NOT NULL,
52
year CHAR(4) NOT NULL CHECK (valid_url_name(year)),
53
semester CHAR(1) NOT NULL CHECK (valid_url_name(semester)),
54
state TEXT NOT NULL CHECK (state IN ('disabled', 'past',
55
'current', 'future')) DEFAULT 'current',
56
UNIQUE (year, semester)
18
studentid VARCHAR -- may be null
59
21
CREATE TABLE offering (
60
22
offeringid SERIAL PRIMARY KEY NOT NULL,
61
subject INT4 REFERENCES subject (subjectid) NOT NULL,
62
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
65
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
66
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
67
UNIQUE (subject, semesterid)
71
CREATE TABLE project_set (
72
projectsetid SERIAL PRIMARY KEY NOT NULL,
73
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
74
max_students_per_group INTEGER
23
subj_name VARCHAR NOT NULL,
24
subj_code VARCHAR NOT NULL,
25
year CHAR(4) NOT NULL,
26
semester CHAR(1) NOT NULL,
77
30
CREATE TABLE project (
78
31
projectid SERIAL PRIMARY KEY NOT NULL,
79
short_name TEXT NOT NULL CHECK (valid_url_name(short_name)),
83
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
84
deadline TIMESTAMP NOT NULL
34
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
87
CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
92
IF TG_OP = ''UPDATE'' THEN
93
IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
97
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
98
PERFORM 1 FROM project, project_set
99
WHERE project_set.offeringid = oid AND
100
project.projectsetid = project_set.projectsetid AND
101
project.short_name = NEW.short_name;
103
RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
107
' LANGUAGE 'plpgsql';
109
CREATE TRIGGER check_project_namespacing
110
BEFORE INSERT OR UPDATE ON project
111
FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
113
38
CREATE TABLE project_group (
114
groupnm VARCHAR NOT NULL CHECK (valid_url_name(groupnm)),
39
groupnm VARCHAR NOT NULL,
115
40
groupid SERIAL PRIMARY KEY NOT NULL,
116
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
41
offeringid INT4 REFERENCES offering (offeringid),
118
43
createdby INT4 REFERENCES login (loginid) NOT NULL,
119
44
epoch TIMESTAMP NOT NULL,
120
UNIQUE (projectsetid, groupnm)
45
UNIQUE (offeringid, groupnm)
123
CREATE OR REPLACE FUNCTION check_group_namespacing_insertupdate()
128
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
129
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;
131
RAISE EXCEPTION ''a project group named % already exists in offering ID %'', NEW.groupnm, oid;
135
' LANGUAGE 'plpgsql';
137
CREATE TRIGGER check_group_namespacing
138
BEFORE INSERT OR UPDATE ON project_group
139
FOR EACH ROW EXECUTE PROCEDURE check_group_namespacing_insertupdate();
141
48
CREATE TABLE group_invitation (
142
49
loginid INT4 REFERENCES login (loginid) NOT NULL,
143
50
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
154
57
CREATE TABLE group_member (
155
58
loginid INT4 REFERENCES login (loginid),
156
59
groupid INT4 REFERENCES project_group (groupid),
60
projectid INT4 REFERENCES project (projectid),
61
UNIQUE (loginid,projectid),
157
62
PRIMARY KEY (loginid,groupid)
160
65
CREATE TABLE enrolment (
161
66
loginid INT4 REFERENCES login (loginid),
162
67
offeringid INT4 REFERENCES offering (offeringid),
163
role TEXT NOT NULL CHECK (role IN ('student', 'tutor',
164
'lecturer')) DEFAULT 'student',
166
69
special_result VARCHAR,
168
71
special_supp_result VARCHAR,
170
active BOOL NOT NULL DEFAULT true,
171
73
PRIMARY KEY (loginid,offeringid)
175
77
assessedid SERIAL PRIMARY KEY NOT NULL,
176
78
loginid INT4 REFERENCES login (loginid),
177
79
groupid INT4 REFERENCES project_group (groupid),
178
projectid INT4 REFERENCES project (projectid) NOT NULL,
179
80
-- exactly one of loginid and groupid must be non-null
180
81
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
181
82
OR (loginid IS NULL AND groupid IS NOT NULL))
184
85
CREATE TABLE project_extension (
185
extensionid SERIAL PRIMARY KEY,
186
86
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
87
projectid INT4 REFERENCES project (projectid) NOT NULL,
187
88
deadline TIMESTAMP NOT NULL,
188
89
approver INT4 REFERENCES login (loginid) NOT NULL,
192
CREATE TABLE project_submission (
193
submissionid SERIAL PRIMARY KEY,
194
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
195
path VARCHAR NOT NULL,
196
revision INT4 NOT NULL,
197
date_submitted TIMESTAMP NOT NULL,
198
submitter INT4 REFERENCES login (loginid) NOT NULL
201
93
CREATE TABLE project_mark (
202
94
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
95
projectid INT4 REFERENCES project (projectid) NOT NULL,
204
97
marker INT4 REFERENCES login (loginid) NOT NULL,
211
CREATE TABLE exercise (
212
identifier TEXT PRIMARY KEY CHECK (valid_url_name(identifier)),
221
CREATE TABLE worksheet (
222
worksheetid SERIAL PRIMARY KEY,
223
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
224
identifier TEXT NOT NULL CHECK (valid_url_name(identifier)),
227
assessable BOOLEAN NOT NULL,
228
seq_no INT4 NOT NULL,
229
format TEXT NOT NUll,
230
UNIQUE (offeringid, identifier)
233
CREATE TABLE worksheet_exercise (
234
ws_ex_id SERIAL PRIMARY KEY,
235
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
236
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
237
seq_no INT4 NOT NULL,
238
active BOOLEAN NOT NULL DEFAULT true,
239
optional BOOLEAN NOT NULL,
240
UNIQUE (worksheetid, exerciseid)
243
CREATE TABLE exercise_attempt (
104
CREATE TABLE problem (
105
problemid SERIAL PRIMARY KEY NOT NULL,
109
CREATE TABLE problem_tag (
110
problemid INT4 REFERENCES problem (problemid),
111
tag VARCHAR NOT NULL,
113
standard BOOLEAN NOT NULL,
114
added_by INT4 REFERENCES login (loginid) NOT NULL,
115
date TIMESTAMP NOT NULL,
116
PRIMARY KEY (problemid,added_by,tag)
119
CREATE TABLE problem_test_case (
120
problemid INT4 REFERENCES problem (problemid) NOT NULL,
121
testcaseid SERIAL UNIQUE NOT NULL,
124
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
127
CREATE TABLE problem_test_case_tag (
128
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
129
tag VARCHAR NOT NULL,
131
standard BOOLEAN NOT NULL,
132
added_by INT4 REFERENCES login (loginid) NOT NULL,
133
date TIMESTAMP NOT NULL,
134
PRIMARY KEY (testcaseid,added_by,tag)
137
CREATE TABLE problem_attempt (
138
problemid INT4 REFERENCES problem (problemid) NOT NULL,
244
139
loginid INT4 REFERENCES login (loginid) NOT NULL,
245
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
246
140
date TIMESTAMP NOT NULL,
247
attempt TEXT NOT NULL,
141
attempt VARCHAR NOT NULL,
248
142
complete BOOLEAN NOT NULL,
249
active BOOLEAN NOT NULL DEFAULT true,
250
PRIMARY KEY (loginid, ws_ex_id, date)
143
PRIMARY KEY (problemid,loginid,date)
253
CREATE TABLE exercise_save (
146
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
148
CREATE TABLE problem_attempt_breakdown (
149
problemid INT4 REFERENCES problem (problemid) NOT NULL,
150
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
254
151
loginid INT4 REFERENCES login (loginid) NOT NULL,
255
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
256
152
date TIMESTAMP NOT NULL,
258
PRIMARY KEY (loginid, ws_ex_id)
261
CREATE TABLE test_suite (
262
suiteid SERIAL PRIMARY KEY,
263
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
270
CREATE TABLE test_case (
271
testid SERIAL PRIMARY KEY,
272
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
279
CREATE TABLE suite_variable (
280
varid SERIAL PRIMARY KEY,
281
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
284
var_type TEXT NOT NULL,
288
CREATE TABLE test_case_part (
289
partid SERIAL PRIMARY KEY,
290
testid INT4 REFERENCES test_case (testid) NOT NULL,
291
part_type TEXT NOT NULL,
156
CREATE TABLE problem_prerequisite (
157
parent INT4 REFERENCES problem (problemid) NOT NULL,
158
child INT4 REFERENCES problem (problemid) NOT NULL,
159
PRIMARY KEY (parent,child)