22
27
CREATE TABLE subject (
23
28
subjectid SERIAL PRIMARY KEY NOT NULL,
24
29
subj_code VARCHAR UNIQUE NOT NULL,
25
30
subj_name VARCHAR NOT NULL,
26
subj_short_name VARCHAR, -- may be 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)
30
44
CREATE TABLE offering (
31
45
offeringid SERIAL PRIMARY KEY NOT NULL,
32
46
subject INT4 REFERENCES subject (subjectid) NOT NULL,
33
year CHAR(4) NOT NULL,
34
semester CHAR(1) NOT NULL,
35
UNIQUE (subject, year, semester)
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
38
62
CREATE TABLE project (
39
63
projectid SERIAL PRIMARY KEY NOT NULL,
42
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
64
short_name TEXT NOT NULL,
68
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
69
deadline TIMESTAMP 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();
46
98
CREATE TABLE project_group (
47
99
groupnm VARCHAR NOT NULL,
48
100
groupid SERIAL PRIMARY KEY NOT NULL,
49
offeringid INT4 REFERENCES offering (offeringid),
101
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
51
103
createdby INT4 REFERENCES login (loginid) NOT NULL,
52
104
epoch TIMESTAMP NOT NULL,
53
UNIQUE (offeringid, groupnm)
105
UNIQUE (projectsetid, groupnm)
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();
56
126
CREATE TABLE group_invitation (
57
127
loginid INT4 REFERENCES login (loginid) NOT NULL,
58
128
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
65
135
CREATE TABLE group_member (
66
136
loginid INT4 REFERENCES login (loginid),
67
137
groupid INT4 REFERENCES project_group (groupid),
68
projectid INT4 REFERENCES project (projectid),
69
UNIQUE (loginid,projectid),
70
138
PRIMARY KEY (loginid,groupid)
73
141
CREATE TABLE enrolment (
74
142
loginid INT4 REFERENCES login (loginid),
75
143
offeringid INT4 REFERENCES offering (offeringid),
144
role TEXT NOT NULL CHECK (role IN ('student', 'tutor',
145
'lecturer')) DEFAULT 'student',
77
147
special_result VARCHAR,
79
149
special_supp_result VARCHAR,
151
active BOOL NOT NULL DEFAULT true,
81
152
PRIMARY KEY (loginid,offeringid)
85
156
assessedid SERIAL PRIMARY KEY NOT NULL,
86
157
loginid INT4 REFERENCES login (loginid),
87
158
groupid INT4 REFERENCES project_group (groupid),
159
projectid INT4 REFERENCES project (projectid) NOT NULL,
88
160
-- exactly one of loginid and groupid must be non-null
89
161
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
90
162
OR (loginid IS NULL AND groupid IS NOT NULL))
93
165
CREATE TABLE project_extension (
166
extensionid SERIAL PRIMARY KEY,
94
167
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
95
projectid INT4 REFERENCES project (projectid) NOT NULL,
96
168
deadline TIMESTAMP NOT NULL,
97
169
approver INT4 REFERENCES login (loginid) NOT NULL,
101
173
CREATE TABLE project_submission (
174
submissionid SERIAL PRIMARY KEY,
102
175
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
103
projectid INT4 REFERENCES project (projectid) NOT NULL,
104
176
path VARCHAR NOT NULL,
105
revision INT4 NOT NULL
177
revision INT4 NOT NULL,
178
date_submitted TIMESTAMP NOT NULL,
179
submitter INT4 REFERENCES login (loginid) NOT NULL
108
182
CREATE TABLE project_mark (
109
183
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
110
projectid INT4 REFERENCES project (projectid) NOT NULL,
111
184
componentid INT4,
112
185
marker INT4 REFERENCES login (loginid) NOT NULL,
119
CREATE TABLE problem (
120
problemid SERIAL PRIMARY KEY NOT NULL,
121
identifier VARCHAR UNIQUE NOT NULL,
194
CREATE TABLE exercise (
195
identifier TEXT PRIMARY KEY,
125
204
CREATE TABLE worksheet (
126
worksheetid SERIAL PRIMARY KEY NOT NULL,
127
subject VARCHAR NOT NULL,
128
identifier VARCHAR NOT NULL,
131
UNIQUE (subject, identifier)
134
CREATE TABLE worksheet_problem (
135
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
136
problemid INT4 REFERENCES problem (problemid) NOT NULL,
138
PRIMARY KEY (worksheetid, problemid)
141
CREATE TABLE problem_tag (
142
problemid INT4 REFERENCES problem (problemid),
143
tag VARCHAR NOT NULL,
145
standard BOOLEAN NOT NULL,
146
added_by INT4 REFERENCES login (loginid) NOT NULL,
147
date TIMESTAMP NOT NULL,
148
PRIMARY KEY (problemid,added_by,tag)
151
CREATE TABLE problem_test_case (
152
problemid INT4 REFERENCES problem (problemid) NOT NULL,
153
testcaseid SERIAL UNIQUE NOT NULL,
156
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
159
CREATE TABLE problem_test_case_tag (
160
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
161
tag VARCHAR NOT NULL,
163
standard BOOLEAN NOT NULL,
164
added_by INT4 REFERENCES login (loginid) NOT NULL,
165
date TIMESTAMP NOT NULL,
166
PRIMARY KEY (testcaseid,added_by,tag)
169
CREATE TABLE problem_attempt (
170
problemid INT4 REFERENCES problem (problemid) NOT NULL,
205
worksheetid SERIAL PRIMARY KEY,
206
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
207
identifier TEXT NOT NULL,
210
assessable BOOLEAN NOT NULL,
211
seq_no INT4 NOT NULL,
212
format TEXT NOT NUll,
213
UNIQUE (offeringid, identifier)
216
CREATE TABLE worksheet_exercise (
217
ws_ex_id SERIAL PRIMARY KEY,
218
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
219
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
220
seq_no INT4 NOT NULL,
221
active BOOLEAN NOT NULL DEFAULT true,
222
optional BOOLEAN NOT NULL,
223
UNIQUE (worksheetid, exerciseid)
226
CREATE TABLE exercise_attempt (
171
227
loginid INT4 REFERENCES login (loginid) NOT NULL,
228
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
172
229
date TIMESTAMP NOT NULL,
173
attempt VARCHAR NOT NULL,
230
attempt TEXT NOT NULL,
174
231
complete BOOLEAN NOT NULL,
175
PRIMARY KEY (problemid,loginid,date)
178
CREATE TABLE problem_save (
179
problemid INT4 REFERENCES problem (problemid) NOT NULL,
180
loginid INT4 REFERENCES login (loginid) NOT NULL,
181
date TIMESTAMP NOT NULL,
182
text VARCHAR NOT NULL,
183
PRIMARY KEY (problemid,loginid)
186
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
188
CREATE TABLE problem_attempt_breakdown (
189
problemid INT4 REFERENCES problem (problemid) NOT NULL,
190
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
191
loginid INT4 REFERENCES login (loginid) NOT NULL,
192
date TIMESTAMP NOT NULL,
196
CREATE TABLE problem_prerequisite (
197
parent INT4 REFERENCES problem (problemid) NOT NULL,
198
child INT4 REFERENCES problem (problemid) NOT NULL,
199
PRIMARY KEY (parent,child)
232
active BOOLEAN NOT NULL DEFAULT true,
233
PRIMARY KEY (loginid, ws_ex_id, date)
236
CREATE TABLE exercise_save (
237
loginid INT4 REFERENCES login (loginid) NOT NULL,
238
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
239
date TIMESTAMP NOT NULL,
241
PRIMARY KEY (loginid, ws_ex_id)
244
CREATE TABLE test_suite (
245
suiteid SERIAL PRIMARY KEY,
246
exerciseid TEXT REFERENCES exercise (identifier) NOT NULL,
253
CREATE TABLE test_case (
254
testid SERIAL PRIMARY KEY,
255
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
262
CREATE TABLE suite_variable (
263
varid SERIAL PRIMARY KEY,
264
suiteid INT4 REFERENCES test_suite (suiteid) NOT NULL,
267
var_type TEXT NOT NULL,
271
CREATE TABLE test_case_part (
272
partid SERIAL PRIMARY KEY,
273
testid INT4 REFERENCES test_case (testid) NOT NULL,
274
part_type TEXT NOT NULL,