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,
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)
59
22
CREATE TABLE offering (
60
23
offeringid SERIAL PRIMARY KEY NOT NULL,
61
subject INT4 REFERENCES subject (subjectid) NOT NULL,
62
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
65
show_worksheet_marks BOOLEAN NOT NULL DEFAULT false,
66
worksheet_cutoff TIMESTAMP,
67
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
68
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
69
UNIQUE (subject, semesterid)
73
CREATE TABLE project_set (
74
projectsetid SERIAL PRIMARY KEY NOT NULL,
75
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
76
max_students_per_group INTEGER
24
subj_name VARCHAR NOT NULL,
25
subj_code VARCHAR NOT NULL,
26
year CHAR(4) NOT NULL,
27
semester CHAR(1) NOT NULL,
79
31
CREATE TABLE project (
80
32
projectid SERIAL PRIMARY KEY NOT NULL,
81
short_name TEXT NOT NULL CHECK (valid_url_name(short_name)),
85
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
86
deadline TIMESTAMP NOT NULL
35
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
89
CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
94
IF TG_OP = ''UPDATE'' THEN
95
IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
99
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
100
PERFORM 1 FROM project, project_set
101
WHERE project_set.offeringid = oid AND
102
project.projectsetid = project_set.projectsetid AND
103
project.short_name = NEW.short_name;
105
RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
109
' LANGUAGE 'plpgsql';
111
CREATE TRIGGER check_project_namespacing
112
BEFORE INSERT OR UPDATE ON project
113
FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
115
39
CREATE TABLE project_group (
116
groupnm VARCHAR NOT NULL CHECK (valid_url_name(groupnm)),
40
groupnm VARCHAR NOT NULL,
117
41
groupid SERIAL PRIMARY KEY NOT NULL,
118
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
42
offeringid INT4 REFERENCES offering (offeringid),
120
44
createdby INT4 REFERENCES login (loginid) NOT NULL,
121
45
epoch TIMESTAMP NOT NULL,
122
UNIQUE (projectsetid, groupnm)
46
UNIQUE (offeringid, groupnm)
125
CREATE OR REPLACE FUNCTION check_group_namespacing_insertupdate()
130
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
131
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;
133
RAISE EXCEPTION ''a project group named % already exists in offering ID %'', NEW.groupnm, oid;
137
' LANGUAGE 'plpgsql';
139
CREATE TRIGGER check_group_namespacing
140
BEFORE INSERT OR UPDATE ON project_group
141
FOR EACH ROW EXECUTE PROCEDURE check_group_namespacing_insertupdate();
143
49
CREATE TABLE group_invitation (
144
50
loginid INT4 REFERENCES login (loginid) NOT NULL,
145
51
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
156
58
CREATE TABLE group_member (
157
59
loginid INT4 REFERENCES login (loginid),
158
60
groupid INT4 REFERENCES project_group (groupid),
61
projectid INT4 REFERENCES project (projectid),
62
UNIQUE (loginid,projectid),
159
63
PRIMARY KEY (loginid,groupid)
162
66
CREATE TABLE enrolment (
163
67
loginid INT4 REFERENCES login (loginid),
164
68
offeringid INT4 REFERENCES offering (offeringid),
165
role TEXT NOT NULL CHECK (role IN ('student', 'tutor',
166
'lecturer')) DEFAULT 'student',
168
70
special_result VARCHAR,
170
72
special_supp_result VARCHAR,
172
active BOOL NOT NULL DEFAULT true,
173
74
PRIMARY KEY (loginid,offeringid)
177
78
assessedid SERIAL PRIMARY KEY NOT NULL,
178
79
loginid INT4 REFERENCES login (loginid),
179
80
groupid INT4 REFERENCES project_group (groupid),
180
projectid INT4 REFERENCES project (projectid) NOT NULL,
181
81
-- exactly one of loginid and groupid must be non-null
182
82
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
183
83
OR (loginid IS NULL AND groupid IS NOT NULL))
186
86
CREATE TABLE project_extension (
187
extensionid SERIAL PRIMARY KEY,
188
87
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
88
projectid INT4 REFERENCES project (projectid) NOT NULL,
189
89
deadline TIMESTAMP NOT NULL,
190
90
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
94
CREATE TABLE project_mark (
204
95
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
96
projectid INT4 REFERENCES project (projectid) NOT NULL,
206
98
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 (
105
CREATE TABLE problem (
106
problemid SERIAL PRIMARY KEY NOT NULL,
110
CREATE TABLE problem_tag (
111
problemid INT4 REFERENCES problem (problemid),
112
tag VARCHAR NOT NULL,
114
standard BOOLEAN NOT NULL,
115
added_by INT4 REFERENCES login (loginid) NOT NULL,
116
date TIMESTAMP NOT NULL,
117
PRIMARY KEY (problemid,added_by,tag)
120
CREATE TABLE problem_test_case (
121
problemid INT4 REFERENCES problem (problemid) NOT NULL,
122
testcaseid SERIAL UNIQUE NOT NULL,
125
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
128
CREATE TABLE problem_test_case_tag (
129
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
130
tag VARCHAR NOT NULL,
132
standard BOOLEAN NOT NULL,
133
added_by INT4 REFERENCES login (loginid) NOT NULL,
134
date TIMESTAMP NOT NULL,
135
PRIMARY KEY (testcaseid,added_by,tag)
138
CREATE TABLE problem_attempt (
139
problemid INT4 REFERENCES problem (problemid) NOT NULL,
247
140
loginid INT4 REFERENCES login (loginid) NOT NULL,
248
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
249
141
date TIMESTAMP NOT NULL,
250
attempt TEXT NOT NULL,
142
attempt VARCHAR NOT NULL,
251
143
complete BOOLEAN NOT NULL,
252
active BOOLEAN NOT NULL DEFAULT true,
253
PRIMARY KEY (loginid, ws_ex_id, date)
144
PRIMARY KEY (problemid,loginid,date)
256
CREATE TABLE exercise_save (
147
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
149
CREATE TABLE problem_attempt_breakdown (
150
problemid INT4 REFERENCES problem (problemid) NOT NULL,
151
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
257
152
loginid INT4 REFERENCES login (loginid) NOT NULL,
258
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
259
153
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,
157
CREATE TABLE problem_prerequisite (
158
parent INT4 REFERENCES problem (problemid) NOT NULL,
159
child INT4 REFERENCES problem (problemid) NOT NULL,
160
PRIMARY KEY (parent,child)