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
22
CREATE TABLE subject (
44
23
subjectid SERIAL PRIMARY KEY NOT NULL,
45
24
subj_code VARCHAR UNIQUE NOT NULL,
46
25
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)
26
subj_short_name VARCHAR, -- may be null
59
30
CREATE TABLE offering (
60
31
offeringid SERIAL PRIMARY KEY NOT NULL,
61
32
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
33
year CHAR(4) NOT NULL,
34
semester CHAR(1) NOT NULL,
35
UNIQUE (subject, year, semester)
79
38
CREATE TABLE project (
80
39
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
42
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
46
CREATE TABLE project_group (
116
groupnm VARCHAR NOT NULL CHECK (valid_url_name(groupnm)),
47
groupnm VARCHAR NOT NULL,
117
48
groupid SERIAL PRIMARY KEY NOT NULL,
118
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
49
offeringid INT4 REFERENCES offering (offeringid),
120
51
createdby INT4 REFERENCES login (loginid) NOT NULL,
121
52
epoch TIMESTAMP NOT NULL,
122
UNIQUE (projectsetid, groupnm)
53
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
56
CREATE TABLE group_invitation (
144
57
loginid INT4 REFERENCES login (loginid) NOT NULL,
145
58
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
156
65
CREATE TABLE group_member (
157
66
loginid INT4 REFERENCES login (loginid),
158
67
groupid INT4 REFERENCES project_group (groupid),
68
projectid INT4 REFERENCES project (projectid),
69
UNIQUE (loginid,projectid),
159
70
PRIMARY KEY (loginid,groupid)
162
73
CREATE TABLE enrolment (
163
74
loginid INT4 REFERENCES login (loginid),
164
75
offeringid INT4 REFERENCES offering (offeringid),
165
role TEXT NOT NULL CHECK (role IN ('student', 'tutor',
166
'lecturer')) DEFAULT 'student',
168
77
special_result VARCHAR,
170
79
special_supp_result VARCHAR,
172
active BOOL NOT NULL DEFAULT true,
173
81
PRIMARY KEY (loginid,offeringid)
177
85
assessedid SERIAL PRIMARY KEY NOT NULL,
178
86
loginid INT4 REFERENCES login (loginid),
179
87
groupid INT4 REFERENCES project_group (groupid),
180
projectid INT4 REFERENCES project (projectid) NOT NULL,
181
88
-- exactly one of loginid and groupid must be non-null
182
89
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
183
90
OR (loginid IS NULL AND groupid IS NOT NULL))
186
CREATE UNIQUE INDEX assessed_loginid_key ON assessed(loginid, projectid) WHERE loginid IS NOT NULL;
187
CREATE UNIQUE INDEX assessed_groupid_key ON assessed(groupid, projectid) WHERE groupid IS NOT NULL;
189
93
CREATE TABLE project_extension (
190
extensionid SERIAL PRIMARY KEY,
191
94
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
95
projectid INT4 REFERENCES project (projectid) NOT NULL,
192
96
deadline TIMESTAMP NOT NULL,
193
97
approver INT4 REFERENCES login (loginid) NOT NULL,
197
101
CREATE TABLE project_submission (
198
submissionid SERIAL PRIMARY KEY,
199
102
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
103
projectid INT4 REFERENCES project (projectid) NOT NULL,
200
104
path VARCHAR NOT NULL,
201
revision INT4 NOT NULL,
202
date_submitted TIMESTAMP NOT NULL,
203
submitter INT4 REFERENCES login (loginid) NOT NULL
105
revision INT4 NOT NULL
206
108
CREATE TABLE project_mark (
207
109
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
110
projectid INT4 REFERENCES project (projectid) NOT NULL,
208
111
componentid INT4,
209
112
marker INT4 REFERENCES login (loginid) NOT NULL,
217
CREATE TABLE exercise (
218
identifier TEXT PRIMARY KEY CHECK (valid_url_name(identifier)),
221
description_xhtml_cache TEXT,
119
CREATE TABLE problem (
120
problemid SERIAL PRIMARY KEY NOT NULL,
121
identifier VARCHAR UNIQUE NOT NULL,
228
125
CREATE TABLE worksheet (
229
worksheetid SERIAL PRIMARY KEY,
230
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
231
identifier TEXT NOT NULL CHECK (valid_url_name(identifier)),
234
data_xhtml_cache TEXT,
235
assessable BOOLEAN NOT NULL,
236
published BOOLEAN NOT NULL DEFAULT true,
237
seq_no INT4 NOT NULL,
238
format TEXT NOT NUll,
239
UNIQUE (offeringid, identifier)
242
CREATE TABLE worksheet_exercise (
243
ws_ex_id SERIAL PRIMARY KEY,
244
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
245
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
246
seq_no INT4 NOT NULL,
247
active BOOLEAN NOT NULL DEFAULT true,
248
optional BOOLEAN NOT NULL,
249
UNIQUE (worksheetid, exerciseid)
252
CREATE TABLE exercise_attempt (
126
worksheetid SERIAL PRIMARY KEY NOT NULL,
127
subject VARCHAR NOT NULL,
128
identifier VARCHAR NOT NULL,
131
UNIQUE (subject, identifier)
134
CREATE TABLE worksheet_problem (
135
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
136
problemid INT4 REFERENCES problem (problemid) NOT NULL,
138
PRIMARY KEY (worksheetid, problemid)
141
CREATE TABLE problem_tag (
142
problemid INT4 REFERENCES problem (problemid),
143
tag VARCHAR NOT NULL,
145
standard BOOLEAN NOT NULL,
146
added_by INT4 REFERENCES login (loginid) NOT NULL,
147
date TIMESTAMP NOT NULL,
148
PRIMARY KEY (problemid,added_by,tag)
151
CREATE TABLE problem_test_case (
152
problemid INT4 REFERENCES problem (problemid) NOT NULL,
153
testcaseid SERIAL UNIQUE NOT NULL,
156
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
159
CREATE TABLE problem_test_case_tag (
160
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
161
tag VARCHAR NOT NULL,
163
standard BOOLEAN NOT NULL,
164
added_by INT4 REFERENCES login (loginid) NOT NULL,
165
date TIMESTAMP NOT NULL,
166
PRIMARY KEY (testcaseid,added_by,tag)
169
CREATE TABLE problem_attempt (
170
problemid INT4 REFERENCES problem (problemid) NOT NULL,
253
171
loginid INT4 REFERENCES login (loginid) NOT NULL,
254
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
255
172
date TIMESTAMP NOT NULL,
256
attempt TEXT NOT NULL,
173
attempt VARCHAR NOT NULL,
257
174
complete BOOLEAN NOT NULL,
258
active BOOLEAN NOT NULL DEFAULT true,
259
PRIMARY KEY (loginid, ws_ex_id, date)
262
CREATE TABLE exercise_save (
263
loginid INT4 REFERENCES login (loginid) NOT NULL,
264
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
265
date TIMESTAMP NOT NULL,
267
PRIMARY KEY (loginid, ws_ex_id)
270
CREATE TABLE test_suite (
271
suiteid SERIAL PRIMARY KEY,
272
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
279
CREATE TABLE test_case (
280
testid SERIAL PRIMARY KEY,
281
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
288
CREATE TABLE suite_variable (
289
varid SERIAL PRIMARY KEY,
290
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
293
var_type TEXT NOT NULL,
297
CREATE TABLE test_case_part (
298
partid SERIAL PRIMARY KEY,
299
testid INT4 REFERENCES test_case (testid) NOT NULL,
300
part_type TEXT NOT NULL,
175
PRIMARY KEY (problemid,loginid,date)
178
CREATE TABLE problem_save (
179
problemid INT4 REFERENCES problem (problemid) NOT NULL,
180
loginid INT4 REFERENCES login (loginid) NOT NULL,
181
date TIMESTAMP NOT NULL,
182
text VARCHAR NOT NULL,
183
PRIMARY KEY (problemid,loginid)
186
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
188
CREATE TABLE problem_attempt_breakdown (
189
problemid INT4 REFERENCES problem (problemid) NOT NULL,
190
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
191
loginid INT4 REFERENCES login (loginid) NOT NULL,
192
date TIMESTAMP NOT NULL,
196
CREATE TABLE problem_prerequisite (
197
parent INT4 REFERENCES problem (problemid) NOT NULL,
198
child INT4 REFERENCES problem (problemid) NOT NULL,
199
PRIMARY KEY (parent,child)