25
22
CREATE TABLE subject (
26
23
subjectid SERIAL PRIMARY KEY NOT NULL,
27
24
subj_code VARCHAR UNIQUE NOT NULL,
28
25
subj_name VARCHAR NOT NULL,
29
subj_short_name VARCHAR UNIQUE NOT NULL
32
CREATE TABLE semester (
33
semesterid SERIAL PRIMARY KEY NOT NULL,
34
year CHAR(4) NOT NULL,
35
semester CHAR(1) NOT NULL,
36
state TEXT NOT NULL CHECK (state IN ('disabled', 'past',
37
'current', 'future')) DEFAULT 'current',
38
UNIQUE (year, semester)
26
subj_short_name VARCHAR, -- may be null
41
30
CREATE TABLE offering (
42
31
offeringid SERIAL PRIMARY KEY NOT NULL,
43
32
subject INT4 REFERENCES subject (subjectid) NOT NULL,
44
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
47
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
48
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
49
UNIQUE (subject, semesterid)
53
CREATE TABLE project_set (
54
projectsetid SERIAL PRIMARY KEY NOT NULL,
55
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
56
max_students_per_group INTEGER
33
year CHAR(4) NOT NULL,
34
semester CHAR(1) NOT NULL
59
37
CREATE TABLE project (
60
38
projectid SERIAL PRIMARY KEY NOT NULL,
61
short_name TEXT NOT NULL,
65
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
66
deadline TIMESTAMP NOT NULL
41
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
69
CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
74
IF TG_OP = ''UPDATE'' THEN
75
IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
79
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
80
PERFORM 1 FROM project, project_set
81
WHERE project_set.offeringid = oid AND
82
project.projectsetid = project_set.projectsetid AND
83
project.short_name = NEW.short_name;
85
RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
91
CREATE TRIGGER check_project_namespacing
92
BEFORE INSERT OR UPDATE ON project
93
FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
95
45
CREATE TABLE project_group (
96
46
groupnm VARCHAR NOT NULL,
97
47
groupid SERIAL PRIMARY KEY NOT NULL,
98
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
48
offeringid INT4 REFERENCES offering (offeringid),
100
50
createdby INT4 REFERENCES login (loginid) NOT NULL,
101
51
epoch TIMESTAMP NOT NULL,
102
UNIQUE (projectsetid, groupnm)
52
UNIQUE (offeringid, groupnm)
105
CREATE OR REPLACE FUNCTION check_group_namespacing_insertupdate()
110
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
111
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;
113
RAISE EXCEPTION ''a project group named % already exists in offering ID %'', NEW.groupnm, oid;
117
' LANGUAGE 'plpgsql';
119
CREATE TRIGGER check_group_namespacing
120
BEFORE INSERT OR UPDATE ON project_group
121
FOR EACH ROW EXECUTE PROCEDURE check_group_namespacing_insertupdate();
123
55
CREATE TABLE group_invitation (
124
56
loginid INT4 REFERENCES login (loginid) NOT NULL,
125
57
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
136
64
CREATE TABLE group_member (
137
65
loginid INT4 REFERENCES login (loginid),
138
66
groupid INT4 REFERENCES project_group (groupid),
67
projectid INT4 REFERENCES project (projectid),
68
UNIQUE (loginid,projectid),
139
69
PRIMARY KEY (loginid,groupid)
142
72
CREATE TABLE enrolment (
143
73
loginid INT4 REFERENCES login (loginid),
144
74
offeringid INT4 REFERENCES offering (offeringid),
145
role TEXT NOT NULL CHECK (role IN ('student', 'tutor',
146
'lecturer')) DEFAULT 'student',
148
76
special_result VARCHAR,
150
78
special_supp_result VARCHAR,
152
active BOOL NOT NULL DEFAULT true,
153
80
PRIMARY KEY (loginid,offeringid)
157
84
assessedid SERIAL PRIMARY KEY NOT NULL,
158
85
loginid INT4 REFERENCES login (loginid),
159
86
groupid INT4 REFERENCES project_group (groupid),
160
projectid INT4 REFERENCES project (projectid) NOT NULL,
161
87
-- exactly one of loginid and groupid must be non-null
162
88
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
163
89
OR (loginid IS NULL AND groupid IS NOT NULL))
166
92
CREATE TABLE project_extension (
167
extensionid SERIAL PRIMARY KEY,
168
93
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
94
projectid INT4 REFERENCES project (projectid) NOT NULL,
169
95
deadline TIMESTAMP NOT NULL,
170
96
approver INT4 REFERENCES login (loginid) NOT NULL,
174
100
CREATE TABLE project_submission (
175
submissionid SERIAL PRIMARY KEY,
176
101
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
102
projectid INT4 REFERENCES project (projectid) NOT NULL,
177
103
path VARCHAR NOT NULL,
178
revision INT4 NOT NULL,
179
date_submitted TIMESTAMP NOT NULL,
180
submitter INT4 REFERENCES login (loginid) NOT NULL
104
revision INT4 NOT NULL
183
107
CREATE TABLE project_mark (
184
108
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
109
projectid INT4 REFERENCES project (projectid) NOT NULL,
185
110
componentid INT4,
186
111
marker INT4 REFERENCES login (loginid) NOT NULL,
193
CREATE TABLE exercise (
194
identifier TEXT PRIMARY KEY,
118
CREATE TABLE problem (
119
problemid SERIAL PRIMARY KEY NOT NULL,
120
identifier VARCHAR UNIQUE NOT NULL,
203
124
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 (
125
worksheetid SERIAL PRIMARY KEY NOT NULL,
126
subject VARCHAR NOT NULL,
127
identifier VARCHAR NOT NULL,
130
UNIQUE (subject, identifier)
133
CREATE TABLE worksheet_problem (
134
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
135
problemid INT4 REFERENCES problem (problemid) NOT NULL,
137
PRIMARY KEY (worksheetid, problemid)
140
CREATE TABLE problem_tag (
141
problemid INT4 REFERENCES problem (problemid),
142
tag VARCHAR NOT NULL,
144
standard BOOLEAN NOT NULL,
145
added_by INT4 REFERENCES login (loginid) NOT NULL,
146
date TIMESTAMP NOT NULL,
147
PRIMARY KEY (problemid,added_by,tag)
150
CREATE TABLE problem_test_case (
151
problemid INT4 REFERENCES problem (problemid) NOT NULL,
152
testcaseid SERIAL UNIQUE NOT NULL,
155
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
158
CREATE TABLE problem_test_case_tag (
159
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
160
tag VARCHAR NOT NULL,
162
standard BOOLEAN NOT NULL,
163
added_by INT4 REFERENCES login (loginid) NOT NULL,
164
date TIMESTAMP NOT NULL,
165
PRIMARY KEY (testcaseid,added_by,tag)
168
CREATE TABLE problem_attempt (
169
problemid INT4 REFERENCES problem (problemid) NOT NULL,
226
170
loginid INT4 REFERENCES login (loginid) NOT NULL,
227
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
228
171
date TIMESTAMP NOT NULL,
229
attempt TEXT NOT NULL,
172
attempt VARCHAR NOT NULL,
230
173
complete BOOLEAN NOT NULL,
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,
174
PRIMARY KEY (problemid,loginid,date)
177
CREATE TABLE problem_save (
178
problemid INT4 REFERENCES problem (problemid) NOT NULL,
179
loginid INT4 REFERENCES login (loginid) NOT NULL,
180
date TIMESTAMP NOT NULL,
181
text VARCHAR NOT NULL,
182
PRIMARY KEY (problemid,loginid)
185
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
187
CREATE TABLE problem_attempt_breakdown (
188
problemid INT4 REFERENCES problem (problemid) NOT NULL,
189
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
190
loginid INT4 REFERENCES login (loginid) NOT NULL,
191
date TIMESTAMP NOT NULL,
195
CREATE TABLE problem_prerequisite (
196
parent INT4 REFERENCES problem (problemid) NOT NULL,
197
child INT4 REFERENCES problem (problemid) NOT NULL,
198
PRIMARY KEY (parent,child)