19
17
fullname VARCHAR NOT NULL,
20
studentid VARCHAR, -- may be null
25
CREATE TABLE subject (
26
subjectid SERIAL PRIMARY KEY NOT NULL,
27
subj_code VARCHAR UNIQUE NOT NULL,
28
subj_name VARCHAR NOT NULL,
29
subj_short_name VARCHAR UNIQUE NOT NULL,
33
CREATE TABLE semester (
34
semesterid SERIAL PRIMARY KEY NOT NULL,
18
studentid VARCHAR -- may be null
21
CREATE TABLE offering (
22
offeringid SERIAL PRIMARY KEY NOT NULL,
23
subj_name VARCHAR NOT NULL,
24
subj_code VARCHAR NOT NULL,
35
25
year CHAR(4) NOT NULL,
36
26
semester CHAR(1) NOT NULL,
37
state TEXT NOT NULL CHECK (state IN ('disabled', 'past',
38
'current', 'future')) DEFAULT 'current',
39
UNIQUE (year, semester)
42
CREATE TABLE offering (
43
offeringid SERIAL PRIMARY KEY NOT NULL,
44
subject INT4 REFERENCES subject (subjectid) NOT NULL,
45
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
46
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
47
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
48
UNIQUE (subject, semesterid)
52
CREATE TABLE project_set (
53
projectsetid SERIAL PRIMARY KEY NOT NULL,
54
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
55
max_students_per_group INTEGER
58
30
CREATE TABLE project (
59
31
projectid SERIAL PRIMARY KEY NOT NULL,
60
short_name TEXT NOT NULL,
64
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
34
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
68
CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
73
IF TG_OP = ''UPDATE'' THEN
74
IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
78
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
79
PERFORM 1 FROM project, project_set
80
WHERE project_set.offeringid = oid AND
81
project.projectsetid = project_set.projectsetid AND
82
project.short_name = NEW.short_name;
84
RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
90
CREATE TRIGGER check_project_namespacing
91
BEFORE INSERT OR UPDATE ON project
92
FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
94
38
CREATE TABLE project_group (
95
39
groupnm VARCHAR NOT NULL,
96
40
groupid SERIAL PRIMARY KEY NOT NULL,
97
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
41
offeringid INT4 REFERENCES offering (offeringid),
99
43
createdby INT4 REFERENCES login (loginid) NOT NULL,
100
44
epoch TIMESTAMP NOT NULL,
101
UNIQUE (projectsetid, groupnm)
45
UNIQUE (offeringid, groupnm)
104
CREATE OR REPLACE FUNCTION check_group_namespacing_insertupdate()
109
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
110
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;
112
RAISE EXCEPTION ''a project group named % already exists in offering ID %'', NEW.groupnm, oid;
116
' LANGUAGE 'plpgsql';
118
CREATE TRIGGER check_group_namespacing
119
BEFORE INSERT OR UPDATE ON project_group
120
FOR EACH ROW EXECUTE PROCEDURE check_group_namespacing_insertupdate();
122
48
CREATE TABLE group_invitation (
123
49
loginid INT4 REFERENCES login (loginid) NOT NULL,
124
50
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
135
57
CREATE TABLE group_member (
136
58
loginid INT4 REFERENCES login (loginid),
137
59
groupid INT4 REFERENCES project_group (groupid),
60
projectid INT4 REFERENCES project (projectid),
61
UNIQUE (loginid,projectid),
138
62
PRIMARY KEY (loginid,groupid)
141
65
CREATE TABLE enrolment (
142
66
loginid INT4 REFERENCES login (loginid),
143
67
offeringid INT4 REFERENCES offering (offeringid),
144
role TEXT NOT NULL CHECK (role IN ('student', 'tutor',
145
'lecturer')) DEFAULT 'student',
147
69
special_result VARCHAR,
149
71
special_supp_result VARCHAR,
151
active BOOL NOT NULL DEFAULT true,
152
73
PRIMARY KEY (loginid,offeringid)
156
77
assessedid SERIAL PRIMARY KEY NOT NULL,
157
78
loginid INT4 REFERENCES login (loginid),
158
79
groupid INT4 REFERENCES project_group (groupid),
159
projectid INT4 REFERENCES project (projectid) NOT NULL,
160
80
-- exactly one of loginid and groupid must be non-null
161
81
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
162
82
OR (loginid IS NULL AND groupid IS NOT NULL))
165
85
CREATE TABLE project_extension (
166
extensionid SERIAL PRIMARY KEY,
167
86
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
87
projectid INT4 REFERENCES project (projectid) NOT NULL,
168
88
deadline TIMESTAMP NOT NULL,
169
89
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,
179
submitter INT4 REFERENCES login (loginid) NOT NULL
182
93
CREATE TABLE project_mark (
183
94
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
95
projectid INT4 REFERENCES project (projectid) NOT NULL,
185
97
marker INT4 REFERENCES login (loginid) NOT NULL,
192
CREATE TABLE exercise (
193
identifier TEXT PRIMARY KEY,
202
CREATE TABLE worksheet (
203
worksheetid SERIAL PRIMARY KEY,
204
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
205
identifier TEXT NOT NULL,
208
assessable BOOLEAN NOT NULL,
209
seq_no INT4 NOT NULL,
210
format TEXT NOT NUll,
211
UNIQUE (offeringid, identifier)
214
CREATE TABLE worksheet_exercise (
215
ws_ex_id SERIAL PRIMARY KEY,
216
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
217
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
218
seq_no INT4 NOT NULL,
219
active BOOLEAN NOT NULL DEFAULT true,
220
optional BOOLEAN NOT NULL,
221
UNIQUE (worksheetid, exerciseid)
224
CREATE TABLE exercise_attempt (
104
CREATE TABLE problem (
105
problemid SERIAL PRIMARY KEY NOT NULL,
109
CREATE TABLE problem_tag (
110
problemid INT4 REFERENCES problem (problemid),
111
tag VARCHAR NOT NULL,
113
standard BOOLEAN NOT NULL,
114
added_by INT4 REFERENCES login (loginid) NOT NULL,
115
date TIMESTAMP NOT NULL,
116
PRIMARY KEY (problemid,added_by,tag)
119
CREATE TABLE problem_test_case (
120
problemid INT4 REFERENCES problem (problemid) NOT NULL,
121
testcaseid SERIAL UNIQUE NOT NULL,
124
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
127
CREATE TABLE problem_test_case_tag (
128
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
129
tag VARCHAR NOT NULL,
131
standard BOOLEAN NOT NULL,
132
added_by INT4 REFERENCES login (loginid) NOT NULL,
133
date TIMESTAMP NOT NULL,
134
PRIMARY KEY (testcaseid,added_by,tag)
137
CREATE TABLE problem_attempt (
138
problemid INT4 REFERENCES problem (problemid) NOT NULL,
225
139
loginid INT4 REFERENCES login (loginid) NOT NULL,
226
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
227
140
date TIMESTAMP NOT NULL,
228
attempt TEXT NOT NULL,
141
attempt VARCHAR NOT NULL,
229
142
complete BOOLEAN NOT NULL,
230
active BOOLEAN NOT NULL DEFAULT true,
231
PRIMARY KEY (loginid, ws_ex_id, date)
143
PRIMARY KEY (problemid,loginid,date)
234
CREATE TABLE exercise_save (
146
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
148
CREATE TABLE problem_attempt_breakdown (
149
problemid INT4 REFERENCES problem (problemid) NOT NULL,
150
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
235
151
loginid INT4 REFERENCES login (loginid) NOT NULL,
236
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
237
152
date TIMESTAMP NOT NULL,
239
PRIMARY KEY (loginid, ws_ex_id)
242
CREATE TABLE test_suite (
243
suiteid SERIAL PRIMARY KEY,
244
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
251
CREATE TABLE test_case (
252
testid SERIAL PRIMARY KEY,
253
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
260
CREATE TABLE suite_variable (
261
varid SERIAL PRIMARY KEY,
262
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
265
var_type TEXT NOT NULL,
269
CREATE TABLE test_case_part (
270
partid SERIAL PRIMARY KEY,
271
testid INT4 REFERENCES test_case (testid) NOT NULL,
272
part_type TEXT NOT NULL,
156
CREATE TABLE problem_prerequisite (
157
parent INT4 REFERENCES problem (problemid) NOT NULL,
158
child INT4 REFERENCES problem (problemid) NOT NULL,
159
PRIMARY KEY (parent,child)