1
DROP TABLE users CASCADE;
3
login VARCHAR UNIQUE NOT NULL,
3
-- Check that the provided name is sane for use in URLs.
4
CREATE OR REPLACE FUNCTION valid_url_name(name text) RETURNS boolean AS
7
RETURN name ~ E'^[a-z0-9][a-z0-9_\+\.\-]*$';
11
-- Just like valid_url_name, except that @ is permitted (so we can use a
12
-- reasonable subset of email addresses as usernames).
13
CREATE OR REPLACE FUNCTION valid_login_name(name text) RETURNS boolean AS
16
RETURN name ~ E'^[a-z0-9][a-z0-9@_\+\.\-]*$';
18
$$ LANGUAGE 'plpgsql';
20
CREATE SEQUENCE login_unixid_seq MINVALUE 1000 MAXVALUE 29999 START WITH 5000;
4
23
loginid SERIAL PRIMARY KEY NOT NULL,
7
studentid VARCHAR -- may be null
10
DROP TABLE offerings CASCADE;
11
CREATE TABLE offerings (
24
login VARCHAR UNIQUE NOT NULL CHECK (valid_login_name(login)),
26
state VARCHAR NOT NULL CHECK (state in ('no_agreement', 'pending',
27
'enabled', 'disabled'))
28
DEFAULT 'no_agreement',
29
admin BOOLEAN NOT NULL DEFAULT false,
30
unixid INT UNIQUE DEFAULT nextval('login_unixid_seq') NOT NULL,
31
nick VARCHAR NOT NULL,
37
fullname VARCHAR NOT NULL,
38
studentid VARCHAR, -- may be null
45
CREATE TABLE subject (
46
subjectid SERIAL PRIMARY KEY NOT NULL,
47
subj_code VARCHAR UNIQUE NOT NULL,
48
subj_name VARCHAR NOT NULL,
49
subj_short_name VARCHAR UNIQUE NOT NULL CHECK (valid_url_name(subj_short_name))
52
CREATE TABLE semester (
53
semesterid SERIAL PRIMARY KEY NOT NULL,
54
year CHAR(4) NOT NULL CHECK (valid_url_name(year)),
55
semester CHAR(1) NOT NULL CHECK (valid_url_name(semester)),
56
state TEXT NOT NULL CHECK (state IN ('disabled', 'past',
57
'current', 'future')) DEFAULT 'current',
58
UNIQUE (year, semester)
61
CREATE TABLE offering (
12
62
offeringid SERIAL PRIMARY KEY NOT NULL,
13
subj_name VARCHAR NOT NULL,
14
subj_code VARCHAR NOT NULL,
15
year CHAR(4) NOT NULL,
19
DROP TABLE groups CASCADE;
21
groupnm VARCHAR NOT NULL,
63
subject INT4 REFERENCES subject (subjectid) NOT NULL,
64
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
67
show_worksheet_marks BOOLEAN NOT NULL DEFAULT false,
68
worksheet_cutoff TIMESTAMP,
69
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
70
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
71
UNIQUE (subject, semesterid)
74
-- Projects and groups
75
-- -------------------
77
CREATE TABLE project_set (
78
projectsetid SERIAL PRIMARY KEY NOT NULL,
79
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
80
max_students_per_group INTEGER
83
CREATE TABLE project (
84
projectid SERIAL PRIMARY KEY NOT NULL,
85
short_name TEXT NOT NULL CHECK (valid_url_name(short_name)),
89
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
90
deadline TIMESTAMP NOT NULL
93
CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
98
IF TG_OP = ''UPDATE'' THEN
99
IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
103
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
104
PERFORM 1 FROM project, project_set
105
WHERE project_set.offeringid = oid AND
106
project.projectsetid = project_set.projectsetid AND
107
project.short_name = NEW.short_name;
109
RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
113
' LANGUAGE 'plpgsql';
115
CREATE TRIGGER check_project_namespacing
116
BEFORE INSERT OR UPDATE ON project
117
FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
119
CREATE TABLE project_group (
120
groupnm VARCHAR NOT NULL CHECK (valid_url_name(groupnm)),
22
121
groupid SERIAL PRIMARY KEY NOT NULL,
23
offeringid INT4 REFERENCES offerings (offeringid),
122
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
25
UNIQUE (offeringid, groupnm)
124
createdby INT4 REFERENCES login (loginid) NOT NULL,
125
epoch TIMESTAMP NOT NULL,
126
UNIQUE (projectsetid, groupnm)
28
DROP TABLE group_invitations CASCADE;
29
CREATE TABLE group_invitations (
30
loginid INT4 REFERENCES users (loginid),
31
groupid INT4 REFERENCES groups (groupid),
129
CREATE OR REPLACE FUNCTION check_group_namespacing_insertupdate()
134
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
135
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;
137
RAISE EXCEPTION ''a project group named % already exists in offering ID %'', NEW.groupnm, oid;
141
' LANGUAGE 'plpgsql';
143
CREATE TRIGGER check_group_namespacing
144
BEFORE INSERT OR UPDATE ON project_group
145
FOR EACH ROW EXECUTE PROCEDURE check_group_namespacing_insertupdate();
147
CREATE TABLE group_invitation (
148
loginid INT4 REFERENCES login (loginid) NOT NULL,
149
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
150
inviter INT4 REFERENCES login (loginid) NOT NULL,
151
invited TIMESTAMP NOT NULL,
32
153
UNIQUE (loginid,groupid)
35
DROP TABLE group_members CASCADE;
36
CREATE TABLE group_members (
37
loginid INT4 REFERENCES users (loginid),
38
groupid INT4 REFERENCES groups (groupid),
39
projectid INT4 REFERENCES projects (projectid),
40
UNIQUE (loginid,projectid),
156
CREATE TABLE group_member (
157
loginid INT4 REFERENCES login (loginid),
158
groupid INT4 REFERENCES project_group (groupid),
41
159
PRIMARY KEY (loginid,groupid)
44
DROP TABLE enrolment CASCADE;
45
162
CREATE TABLE enrolment (
46
loginid INT4 REFERENCES users (loginid),
47
offeringid INT4 REFERENCES offerings (offeringid),
163
loginid INT4 REFERENCES login (loginid),
164
offeringid INT4 REFERENCES offering (offeringid),
165
role TEXT NOT NULL CHECK (role IN ('student', 'tutor',
166
'lecturer')) DEFAULT 'student',
168
special_result VARCHAR,
170
special_supp_result VARCHAR,
172
active BOOL NOT NULL DEFAULT true,
51
173
PRIMARY KEY (loginid,offeringid)
54
DROP TABLE roles CASCADE;
56
loginid INT4 PRIMARY KEY REFERENCES users (loginid),
60
DROP TABLE projects CASCADE;
61
CREATE TABLE projects (
62
projectid SERIAL PRIMARY KEY NOT NULL,
65
offeringid INT4 REFERENCES offerings (offeringid) NOT NULL,
69
DROP TABLE project_extension CASCADE;
176
CREATE TABLE assessed (
177
assessedid SERIAL PRIMARY KEY NOT NULL,
178
loginid INT4 REFERENCES login (loginid),
179
groupid INT4 REFERENCES project_group (groupid),
180
projectid INT4 REFERENCES project (projectid) NOT NULL,
181
-- exactly one of loginid and groupid must be non-null
182
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
183
OR (loginid IS NULL AND groupid IS NOT NULL))
186
-- We must use conditional constraints here -- NULL != NULL.
187
CREATE UNIQUE INDEX assessed_loginid_key ON assessed(loginid, projectid) WHERE loginid IS NOT NULL;
188
CREATE UNIQUE INDEX assessed_groupid_key ON assessed(groupid, projectid) WHERE groupid IS NOT NULL;
70
190
CREATE TABLE project_extension (
71
loginid INT4 REFERENCES users (loginid),
72
groupid INT4 REFERENCES groups (groupid),
73
projectid INT4 REFERENCES projects (projectid) NOT NULL,
74
deadline TIMESTAMP NOT NULL,
75
approver INT4 REFERENCES users (loginid) NOT NULL,
77
-- exactly one of loginid and groupid must be non-null
78
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
79
OR (loginid IS NULL AND groupid IS NOT NULL))
82
DROP TABLE project_mark CASCADE;
191
extensionid SERIAL PRIMARY KEY,
192
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
194
approver INT4 REFERENCES login (loginid) NOT NULL,
198
CREATE TABLE project_submission (
199
submissionid SERIAL PRIMARY KEY,
200
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
201
path VARCHAR NOT NULL,
202
revision INT4 NOT NULL,
203
date_submitted TIMESTAMP NOT NULL,
204
submitter INT4 REFERENCES login (loginid) NOT NULL
83
207
CREATE TABLE project_mark (
84
loginid INT4 REFERENCES users (loginid),
85
groupid INT4 REFERENCES groups (groupid),
86
projectid INT4 REFERENCES projects (projectid) NOT NULL,
208
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
88
marker INT4 REFERENCES users (loginid) NOT NULL,
210
marker INT4 REFERENCES login (loginid) NOT NULL,
93
-- exactly one of loginid and groupid must be non-null
94
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
95
OR (loginid IS NULL AND groupid IS NOT NULL))
98
DROP TABLE problem CASCADE;
99
CREATE TABLE problem (
100
problemid SERIAL PRIMARY KEY NOT NULL,
104
DROP TABLE problem_tags CASCADE;
105
CREATE TABLE problem_tags (
106
problemid INT4 REFERENCES tutorial_problem (problemid),
107
tag VARCHAR NOT NULL,
108
added_by INT4 REFERENCES users (loginid) NOT NULL,
109
date TIMESTAMP NOT NULL,
110
PRIMARY KEY (problemid,added_by,tag)
113
DROP TABLE problem_test_case CASCADE;
114
CREATE TABLE problem_test_case (
115
problemid INT4 REFERENCES problem (problemid) NOT NULL,
116
testcaseid SERIAL UNIQUE NOT NULL,
119
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
122
DROP TABLE problem_test_case_tags CASCADE;
123
CREATE TABLE problem_test_case_tags (
124
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
125
tag VARCHAR NOT NULL,
127
added_by INT4 REFERENCES users (loginid) NOT NULL,
128
date TIMESTAMP NOT NULL,
129
PRIMARY KEY (testcaseid,added_by,tag)
132
DROP TABLE problem_attempt CASCADE;
133
CREATE TABLE problem_attempt (
134
problemid INT4 REFERENCES problem (problemid) NOT NULL,
135
loginid INT4 REFERENCES users (loginid) NOT NULL,
136
date TIMESTAMP NOT NULL,
137
attempt VARCHAR NOT NULL,
219
CREATE TABLE exercise (
220
identifier TEXT PRIMARY KEY CHECK (valid_url_name(identifier)),
223
description_xhtml_cache TEXT,
230
CREATE TABLE worksheet (
231
worksheetid SERIAL PRIMARY KEY,
232
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
233
identifier TEXT NOT NULL CHECK (valid_url_name(identifier)),
236
data_xhtml_cache TEXT,
237
assessable BOOLEAN NOT NULL,
238
published BOOLEAN NOT NULL DEFAULT true,
239
seq_no INT4 NOT NULL,
240
format TEXT NOT NUll,
241
UNIQUE (offeringid, identifier)
244
CREATE TABLE worksheet_exercise (
245
ws_ex_id SERIAL PRIMARY KEY,
246
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
247
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
248
seq_no INT4 NOT NULL,
249
active BOOLEAN NOT NULL DEFAULT true,
250
optional BOOLEAN NOT NULL,
251
UNIQUE (worksheetid, exerciseid)
254
CREATE TABLE exercise_attempt (
255
loginid INT4 REFERENCES login (loginid) NOT NULL,
256
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
257
date TIMESTAMP NOT NULL,
258
attempt TEXT NOT NULL,
138
259
complete BOOLEAN NOT NULL,
139
PRIMARY KEY (problemid,loginid,date)
260
active BOOLEAN NOT NULL DEFAULT true,
261
PRIMARY KEY (loginid, ws_ex_id, date)
142
DROP INDEX problem_attempt_index;
143
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
145
DROP TABLE problem_attempt_breakdown CASCADE;
146
CREATE TABLE problem_attempt_breakdown (
147
problemid INT4 REFERENCES problem (problemid) NOT NULL,
148
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
149
loginid INT4 REFERENCES users (loginid) NOT NULL,
264
CREATE TABLE exercise_save (
265
loginid INT4 REFERENCES login (loginid) NOT NULL,
266
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
150
267
date TIMESTAMP NOT NULL,
154
DROP TABLE problem_prerequisites CASCADE;
155
CREATE TABLE problem_prerequisites (
156
parent INT4 REFERENCES problem (problemid) NOT NULL,
157
child INT4 REFERENCES problem (problemid) NOT NULL,
158
PRIMARY KEY (parent,child)
269
PRIMARY KEY (loginid, ws_ex_id)
272
CREATE TABLE test_suite (
273
suiteid SERIAL PRIMARY KEY,
274
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
281
CREATE TABLE test_case (
282
testid SERIAL PRIMARY KEY,
283
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
290
CREATE TABLE suite_variable (
291
varid SERIAL PRIMARY KEY,
292
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
295
var_type TEXT NOT NULL,
299
CREATE TABLE test_case_part (
300
partid SERIAL PRIMARY KEY,
301
testid INT4 REFERENCES test_case (testid) NOT NULL,
302
part_type TEXT NOT NULL,