4
DROP TABLE group_members;
2
CREATE SEQUENCE login_unixid_seq MINVALUE 1000 MAXVALUE 29999 START WITH 5000;
5
loginid SERIAL PRIMARY KEY NOT NULL,
9
6
login VARCHAR UNIQUE NOT NULL,
10
loginid SERIAL PRIMARY KEY NOT NULL,
8
state VARCHAR NOT NULL CHECK (state in ('no_agreement', 'pending',
9
'enabled', 'disabled'))
10
DEFAULT 'no_agreement',
11
admin BOOLEAN NOT NULL DEFAULT false,
12
unixid INT UNIQUE DEFAULT nextval('login_unixid_seq') NOT NULL,
13
nick VARCHAR NOT NULL,
19
fullname VARCHAR NOT NULL,
13
20
studentid VARCHAR, -- may be null
17
group VARCHAR NOT NULL,
27
CREATE TABLE subject (
28
subjectid SERIAL PRIMARY KEY NOT NULL,
29
subj_code VARCHAR UNIQUE NOT NULL,
30
subj_name VARCHAR NOT NULL,
31
subj_short_name VARCHAR UNIQUE NOT NULL,
35
CREATE TABLE semester (
36
semesterid SERIAL PRIMARY KEY NOT NULL,
37
year CHAR(4) NOT NULL,
38
semester CHAR(1) NOT NULL,
39
state TEXT NOT NULL CHECK (state IN ('disabled', 'past',
40
'current', 'future')) DEFAULT 'current',
41
UNIQUE (year, semester)
44
CREATE TABLE offering (
45
offeringid SERIAL PRIMARY KEY NOT NULL,
46
subject INT4 REFERENCES subject (subjectid) NOT NULL,
47
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
48
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
49
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
50
UNIQUE (subject, semesterid)
53
-- Projects and groups
54
-- -------------------
56
CREATE TABLE project_set (
57
projectsetid SERIAL PRIMARY KEY NOT NULL,
58
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
59
max_students_per_group INTEGER NOT NULL DEFAULT 4
62
CREATE TABLE project (
63
projectid SERIAL PRIMARY KEY NOT NULL,
64
short_name TEXT NOT NULL,
68
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
72
CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
77
IF TG_OP = ''UPDATE'' THEN
78
IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
82
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
83
PERFORM 1 FROM project, project_set
84
WHERE project_set.offeringid = oid AND
85
project.projectsetid = project_set.projectsetid AND
86
project.short_name = NEW.short_name;
88
RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
94
CREATE TRIGGER check_project_namespacing
95
BEFORE INSERT OR UPDATE ON project
96
FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
98
CREATE TABLE project_group (
99
groupnm VARCHAR NOT NULL,
18
100
groupid SERIAL PRIMARY KEY NOT NULL,
19
offeringid INT4 REFERENCES offerings (offeringid),
101
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
21
UNIQUE (offeringid, group)
103
createdby INT4 REFERENCES login (loginid) NOT NULL,
104
epoch TIMESTAMP NOT NULL,
105
UNIQUE (projectsetid, groupnm)
24
CREATE TABLE group_invitations (
25
loginid INT4 REFERENCES users (loginid),
26
groupid INT4 REFERENCES groups (groupid),
108
CREATE OR REPLACE FUNCTION check_group_namespacing_insertupdate()
113
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
114
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;
116
RAISE EXCEPTION ''a project group named % already exists in offering ID %'', NEW.groupnm, oid;
120
' LANGUAGE 'plpgsql';
122
CREATE TRIGGER check_group_namespacing
123
BEFORE INSERT OR UPDATE ON project_group
124
FOR EACH ROW EXECUTE PROCEDURE check_group_namespacing_insertupdate();
126
CREATE TABLE group_invitation (
127
loginid INT4 REFERENCES login (loginid) NOT NULL,
128
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
129
inviter INT4 REFERENCES login (loginid) NOT NULL,
130
invited TIMESTAMP NOT NULL,
27
132
UNIQUE (loginid,groupid)
30
CREATE TABLE group_members (
31
loginid INT4 REFERENCES users (loginid),
32
groupid INT4 REFERENCES groups (groupid),
33
projectid INT4 REFERENCES projects (projectid),
34
UNIQUE (loginid,projectid),
135
CREATE TABLE group_member (
136
loginid INT4 REFERENCES login (loginid),
137
groupid INT4 REFERENCES project_group (groupid),
35
138
PRIMARY KEY (loginid,groupid)
38
141
CREATE TABLE enrolment (
39
loginid INT4 REFERENCES users (loginid),
40
offeringid INT4 REFERENCES offerings (offeringid),
142
loginid INT4 REFERENCES login (loginid),
143
offeringid INT4 REFERENCES offering (offeringid),
144
role TEXT NOT NULL CHECK (role IN ('student', 'tutor',
145
'lecturer')) DEFAULT 'student',
147
special_result VARCHAR,
149
special_supp_result VARCHAR,
151
active BOOL NOT NULL DEFAULT true,
44
152
PRIMARY KEY (loginid,offeringid)
48
loginid INT4 PRIMARY KEY REFERENCES users (loginid),
52
CREATE TABLE projects (
53
projectid SERIAL PRIMARY KEY NOT NULL,
56
offeringid INT4 REFERENCES offerings (offeringid) NOT NULL,
155
CREATE TABLE assessed (
156
assessedid SERIAL PRIMARY KEY NOT NULL,
157
loginid INT4 REFERENCES login (loginid),
158
groupid INT4 REFERENCES project_group (groupid),
159
projectid INT4 REFERENCES project (projectid) NOT NULL,
160
-- exactly one of loginid and groupid must be non-null
161
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
162
OR (loginid IS NULL AND groupid IS NOT NULL))
60
165
CREATE TABLE project_extension (
62
projectid INT4 REFERENCES projects (projectid) NOT NULL,
166
extensionid SERIAL PRIMARY KEY,
167
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
63
168
deadline TIMESTAMP NOT NULL,
64
approver INT4 REFERENCES users (loginid) NOT NULL,
169
approver INT4 REFERENCES login (loginid) NOT NULL,
173
CREATE TABLE project_submission (
174
submissionid SERIAL PRIMARY KEY,
175
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
176
path VARCHAR NOT NULL,
177
revision INT4 NOT NULL,
178
date_submitted TIMESTAMP NOT NULL
68
181
CREATE TABLE project_mark (
70
projectid INT4 REFERENCES projects (projectid) NOT NULL,
182
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
72
marker INT4 REFERENCES users (loginid) NOT NULL,
184
marker INT4 REFERENCES login (loginid) NOT NULL,
77
PRIMARY KEY (loginid/groupid, projectid, componentid)
80
CREATE TABLE problem (
81
problemid SERIAL PRIMARY KEY NOT NULL,
85
CREATE TABLE problem_tags (
86
problemid INT4 REFERENCES tutorial_problem (problemid),
88
added_by INT4 REFERENCES users (loginid) NOT NULL,
89
when TIMESTAMP NOT NULL,
90
PRIMARY KEY (problemid,added_by,tag)
93
CREATE TABLE problem_test_case (
94
problemid INT4 REFERENCES problem (problemid) NOT NULL,
95
testcaseid SERIAL UNIQUE NOT NULL,
98
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
101
CREATE TABLE problem_test_case_tags (
102
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
103
tag VARCHAR NOT NULL,
105
added_by INT4 REFERENCES users (loginid) NOT NULL,
106
when TIMESTAMP NOT NULL,
107
PRIMARY KEY (testcaseid,added_by,tag)
110
CREATE TABLE problem_attempt (
111
problemid INT4 REFERENCES problem (problemid) NOT NULL,
112
loginid INT4 REFERENCES users (loginid) NOT NULL,
113
when TIMESTAMP NOT NULL,
114
attempt VARCHAR NOT NULL,
193
CREATE TABLE exercise (
194
identifier TEXT PRIMARY KEY,
203
CREATE TABLE worksheet (
204
worksheetid SERIAL PRIMARY KEY,
205
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
206
identifier TEXT NOT NULL,
209
assessable BOOLEAN NOT NULL,
210
seq_no INT4 NOT NULL,
211
format TEXT NOT NUll,
212
UNIQUE (offeringid, identifier)
215
CREATE TABLE worksheet_exercise (
216
ws_ex_id SERIAL PRIMARY KEY,
217
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
218
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
219
seq_no INT4 NOT NULL,
220
active BOOLEAN NOT NULL DEFAULT true,
221
optional BOOLEAN NOT NULL,
222
UNIQUE (worksheetid, exerciseid)
225
CREATE TABLE exercise_attempt (
226
loginid INT4 REFERENCES login (loginid) NOT NULL,
227
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
228
date TIMESTAMP NOT NULL,
229
attempt TEXT NOT NULL,
115
230
complete BOOLEAN NOT NULL,
116
PRIMARY KEY (problemid,loginid,when)
119
CREATE INDEX indexname ON problem_attempt (problemid, login);
121
CREATE TABLE problem_attempt_breakdown (
122
problemid INT4 REFERENCES problem (problemid) NOT NULL,
123
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
124
loginid INT4 REFERENCES users (loginid) NOT NULL,
125
when TIMESTAMP NOT NULL,
129
CREATE TABLE problem_prerequisites (
130
parent INT4 REFERENCES problem (problemid) NOT NULL,
131
child INT4 REFERENCES problem (problemid) NOT NULL,
132
PRIMARY KEY (parent,child)
231
active BOOLEAN NOT NULL DEFAULT true,
232
PRIMARY KEY (loginid, ws_ex_id, date)
235
CREATE TABLE exercise_save (
236
loginid INT4 REFERENCES login (loginid) NOT NULL,
237
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
238
date TIMESTAMP NOT NULL,
240
PRIMARY KEY (loginid, ws_ex_id)
243
CREATE TABLE test_suite (
244
suiteid SERIAL PRIMARY KEY,
245
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
252
CREATE TABLE test_case (
253
testid SERIAL PRIMARY KEY,
254
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
261
CREATE TABLE suite_variable (
262
varid SERIAL PRIMARY KEY,
263
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
266
var_type TEXT NOT NULL,
270
CREATE TABLE test_case_part (
271
partid SERIAL PRIMARY KEY,
272
testid INT4 REFERENCES test_case (testid) NOT NULL,
273
part_type TEXT NOT NULL,