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'))
46
28
subjectid SERIAL PRIMARY KEY NOT NULL,
47
29
subj_code VARCHAR UNIQUE NOT NULL,
48
30
subj_name VARCHAR NOT NULL,
49
subj_short_name VARCHAR UNIQUE NOT NULL CHECK (valid_url_name(subj_short_name))
31
subj_short_name VARCHAR UNIQUE NOT NULL,
52
35
CREATE TABLE semester (
53
36
semesterid SERIAL PRIMARY KEY NOT NULL,
54
year TEXT NOT NULL CHECK (valid_url_name(year)),
55
url_name TEXT NOT NULL CHECK (valid_url_name(url_name)),
57
display_name TEXT NOT NULL,
37
year CHAR(4) NOT NULL,
38
semester CHAR(1) NOT NULL,
58
39
state TEXT NOT NULL CHECK (state IN ('disabled', 'past',
59
40
'current', 'future')) DEFAULT 'current',
60
UNIQUE (year, url_name),
41
UNIQUE (year, semester)
64
44
CREATE TABLE offering (
65
45
offeringid SERIAL PRIMARY KEY NOT NULL,
66
46
subject INT4 REFERENCES subject (subjectid) NOT NULL,
67
47
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
70
show_worksheet_marks BOOLEAN NOT NULL DEFAULT false,
71
worksheet_cutoff TIMESTAMP,
72
48
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
73
49
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
74
50
UNIQUE (subject, semesterid)
80
56
CREATE TABLE project_set (
81
57
projectsetid SERIAL PRIMARY KEY NOT NULL,
82
58
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
83
max_students_per_group INTEGER
59
max_students_per_group INTEGER NOT NULL DEFAULT 4
86
62
CREATE TABLE project (
87
63
projectid SERIAL PRIMARY KEY NOT NULL,
88
short_name TEXT NOT NULL CHECK (valid_url_name(short_name)),
92
66
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
93
deadline TIMESTAMP NOT NULL
96
CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
101
IF TG_OP = ''UPDATE'' THEN
102
IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
106
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
107
PERFORM 1 FROM project, project_set
108
WHERE project_set.offeringid = oid AND
109
project.projectsetid = project_set.projectsetid AND
110
project.short_name = NEW.short_name;
112
RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
116
' LANGUAGE 'plpgsql';
118
CREATE TRIGGER check_project_namespacing
119
BEFORE INSERT OR UPDATE ON project
120
FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
122
70
CREATE TABLE project_group (
123
groupnm VARCHAR NOT NULL CHECK (valid_url_name(groupnm)),
71
groupnm VARCHAR NOT NULL,
124
72
groupid SERIAL PRIMARY KEY NOT NULL,
125
73
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
186
134
OR (loginid IS NULL AND groupid IS NOT NULL))
189
CREATE UNIQUE INDEX assessed_loginid_key ON assessed(loginid, projectid) WHERE loginid IS NOT NULL;
190
CREATE UNIQUE INDEX assessed_groupid_key ON assessed(groupid, projectid) WHERE groupid IS NOT NULL;
192
137
CREATE TABLE project_extension (
193
extensionid SERIAL PRIMARY KEY,
194
138
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
139
deadline TIMESTAMP NOT NULL,
196
140
approver INT4 REFERENCES login (loginid) NOT NULL,
200
144
CREATE TABLE project_submission (
201
submissionid SERIAL PRIMARY KEY,
202
145
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
203
146
path VARCHAR NOT NULL,
204
revision INT4 NOT NULL,
205
date_submitted TIMESTAMP NOT NULL,
206
submitter INT4 REFERENCES login (loginid) NOT NULL
147
revision INT4 NOT NULL
209
150
CREATE TABLE project_mark (
222
162
CREATE TABLE exercise (
223
identifier TEXT PRIMARY KEY CHECK (valid_url_name(identifier)),
163
identifier TEXT PRIMARY KEY,
225
165
description TEXT,
226
description_xhtml_cache TEXT,
233
172
CREATE TABLE worksheet (
234
173
worksheetid SERIAL PRIMARY KEY,
235
174
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
236
identifier TEXT NOT NULL CHECK (valid_url_name(identifier)),
175
identifier TEXT NOT NULL,
237
176
name TEXT NOT NULL,
238
177
data TEXT NOT NULL,
239
data_xhtml_cache TEXT,
240
178
assessable BOOLEAN NOT NULL,
241
published BOOLEAN NOT NULL DEFAULT true,
242
179
seq_no INT4 NOT NULL,
243
180
format TEXT NOT NUll,
244
181
UNIQUE (offeringid, identifier)