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
2
CREATE SEQUENCE login_unixid_seq MINVALUE 1000 MAXVALUE 29999 START WITH 5000;
19
4
CREATE TABLE login (
20
5
loginid SERIAL PRIMARY KEY NOT NULL,
21
login VARCHAR UNIQUE NOT NULL CHECK (valid_login_name(login)),
6
login VARCHAR UNIQUE NOT NULL,
23
8
state VARCHAR NOT NULL CHECK (state in ('no_agreement', 'pending',
24
9
'enabled', 'disabled'))
25
10
DEFAULT 'no_agreement',
26
admin BOOLEAN NOT NULL DEFAULT false,
11
rolenm VARCHAR NOT NULL CHECK (rolenm in ('anyone', 'student',
13
'lecturer', 'admin')),
27
14
unixid INT UNIQUE DEFAULT nextval('login_unixid_seq') NOT NULL,
28
15
nick VARCHAR NOT NULL,
29
16
pass_exp TIMESTAMP,
46
30
subjectid SERIAL PRIMARY KEY NOT NULL,
47
31
subj_code VARCHAR UNIQUE NOT NULL,
48
32
subj_name VARCHAR NOT NULL,
49
subj_short_name VARCHAR UNIQUE NOT NULL CHECK (valid_url_name(subj_short_name))
33
subj_short_name VARCHAR UNIQUE NOT NULL,
52
37
CREATE TABLE semester (
53
38
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',
39
year CHAR(4) NOT NULL,
40
semester CHAR(1) NOT NULL,
58
42
UNIQUE (year, semester)
45
CREATE OR REPLACE FUNCTION deactivate_semester_enrolments_update()
48
IF OLD.active = true AND NEW.active = false THEN
49
UPDATE enrolment SET active=false WHERE offeringid IN (
50
SELECT offeringid FROM offering WHERE offering.semesterid = NEW.semesterid);
56
CREATE TRIGGER deactivate_semester_enrolments
57
AFTER UPDATE ON semester
58
FOR EACH ROW EXECUTE PROCEDURE deactivate_semester_enrolments_update();
61
60
CREATE TABLE offering (
62
61
offeringid SERIAL PRIMARY KEY NOT NULL,
63
62
subject INT4 REFERENCES subject (subjectid) NOT NULL,
64
63
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
67
64
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
68
65
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
69
66
UNIQUE (subject, semesterid)
75
72
CREATE TABLE project_set (
76
73
projectsetid SERIAL PRIMARY KEY NOT NULL,
77
74
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
78
max_students_per_group INTEGER
75
max_students_per_group INTEGER NOT NULL DEFAULT 4
81
78
CREATE TABLE project (
82
79
projectid SERIAL PRIMARY KEY NOT NULL,
83
short_name TEXT NOT NULL CHECK (valid_url_name(short_name)),
87
82
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
88
deadline TIMESTAMP NOT NULL
91
CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
96
IF TG_OP = ''UPDATE'' THEN
97
IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
101
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
102
PERFORM 1 FROM project, project_set
103
WHERE project_set.offeringid = oid AND
104
project.projectsetid = project_set.projectsetid AND
105
project.short_name = NEW.short_name;
107
RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
111
' LANGUAGE 'plpgsql';
113
CREATE TRIGGER check_project_namespacing
114
BEFORE INSERT OR UPDATE ON project
115
FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
117
86
CREATE TABLE project_group (
118
groupnm VARCHAR NOT NULL CHECK (valid_url_name(groupnm)),
87
groupnm VARCHAR NOT NULL,
119
88
groupid SERIAL PRIMARY KEY NOT NULL,
120
89
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
160
129
CREATE TABLE enrolment (
161
130
loginid INT4 REFERENCES login (loginid),
162
131
offeringid INT4 REFERENCES offering (offeringid),
163
role TEXT NOT NULL CHECK (role IN ('student', 'tutor',
164
'lecturer')) DEFAULT 'student',
166
133
special_result VARCHAR,
171
138
PRIMARY KEY (loginid,offeringid)
141
CREATE OR REPLACE FUNCTION confirm_active_semester_insertupdate()
146
SELECT semester.active INTO active FROM offering, semester WHERE offeringid=NEW.offeringid AND semester.semesterid = offering.semesterid;
147
IF NOT active AND NEW.active = true THEN
148
RAISE EXCEPTION ''cannot have active enrolment for % in offering %, as the semester is inactive'', NEW.loginid, NEW.offeringid;
152
' LANGUAGE 'plpgsql';
154
CREATE TRIGGER confirm_active_semester
155
BEFORE INSERT OR UPDATE ON enrolment
156
FOR EACH ROW EXECUTE PROCEDURE confirm_active_semester_insertupdate();
174
158
CREATE TABLE assessed (
175
159
assessedid SERIAL PRIMARY KEY NOT NULL,
176
160
loginid INT4 REFERENCES login (loginid),
184
168
CREATE TABLE project_extension (
185
extensionid SERIAL PRIMARY KEY,
186
169
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
187
170
deadline TIMESTAMP NOT NULL,
188
171
approver INT4 REFERENCES login (loginid) NOT NULL,
192
175
CREATE TABLE project_submission (
193
submissionid SERIAL PRIMARY KEY,
194
176
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
195
177
path VARCHAR NOT NULL,
196
revision INT4 NOT NULL,
197
date_submitted TIMESTAMP NOT NULL,
198
submitter INT4 REFERENCES login (loginid) NOT NULL
178
revision INT4 NOT NULL
201
181
CREATE TABLE project_mark (
223
203
CREATE TABLE worksheet (
224
204
worksheetid SERIAL PRIMARY KEY,
225
205
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
226
identifier TEXT NOT NULL CHECK (valid_url_name(identifier)),
206
identifier TEXT NOT NULL,
227
207
name TEXT NOT NULL,
228
208
data TEXT NOT NULL,
229
209
assessable BOOLEAN NOT NULL,