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,
26
subj_short_name VARCHAR, -- may be null
33
CREATE TABLE semester (
34
semesterid SERIAL PRIMARY KEY NOT NULL,
35
year CHAR(4) NOT NULL,
36
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
30
CREATE TABLE offering (
43
31
offeringid SERIAL PRIMARY KEY NOT NULL,
44
32
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
33
year CHAR(4) NOT NULL,
34
semester CHAR(1) NOT NULL,
35
UNIQUE (subject, year, semester)
58
38
CREATE TABLE project (
59
39
projectid SERIAL PRIMARY KEY NOT NULL,
60
short_name TEXT NOT NULL,
64
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
42
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
46
CREATE TABLE project_group (
95
47
groupnm VARCHAR NOT NULL,
96
48
groupid SERIAL PRIMARY KEY NOT NULL,
97
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
49
offeringid INT4 REFERENCES offering (offeringid),
99
51
createdby INT4 REFERENCES login (loginid) NOT NULL,
100
52
epoch TIMESTAMP NOT NULL,
101
UNIQUE (projectsetid, groupnm)
53
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
56
CREATE TABLE group_invitation (
123
57
loginid INT4 REFERENCES login (loginid) NOT NULL,
124
58
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
135
65
CREATE TABLE group_member (
136
66
loginid INT4 REFERENCES login (loginid),
137
67
groupid INT4 REFERENCES project_group (groupid),
68
projectid INT4 REFERENCES project (projectid),
69
UNIQUE (loginid,projectid),
138
70
PRIMARY KEY (loginid,groupid)
141
73
CREATE TABLE enrolment (
142
74
loginid INT4 REFERENCES login (loginid),
143
75
offeringid INT4 REFERENCES offering (offeringid),
144
role TEXT NOT NULL CHECK (role IN ('student', 'tutor',
145
'lecturer')) DEFAULT 'student',
147
77
special_result VARCHAR,
149
79
special_supp_result VARCHAR,
151
active BOOL NOT NULL DEFAULT true,
152
81
PRIMARY KEY (loginid,offeringid)
156
85
assessedid SERIAL PRIMARY KEY NOT NULL,
157
86
loginid INT4 REFERENCES login (loginid),
158
87
groupid INT4 REFERENCES project_group (groupid),
159
projectid INT4 REFERENCES project (projectid) NOT NULL,
160
88
-- exactly one of loginid and groupid must be non-null
161
89
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
162
90
OR (loginid IS NULL AND groupid IS NOT NULL))
165
93
CREATE TABLE project_extension (
166
extensionid SERIAL PRIMARY KEY,
167
94
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
95
projectid INT4 REFERENCES project (projectid) NOT NULL,
168
96
deadline TIMESTAMP NOT NULL,
169
97
approver INT4 REFERENCES login (loginid) NOT NULL,
173
101
CREATE TABLE project_submission (
174
submissionid SERIAL PRIMARY KEY,
175
102
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
103
projectid INT4 REFERENCES project (projectid) NOT NULL,
176
104
path VARCHAR NOT NULL,
177
revision INT4 NOT NULL,
178
date_submitted TIMESTAMP NOT NULL,
179
submitter INT4 REFERENCES login (loginid) NOT NULL
105
revision INT4 NOT NULL
182
108
CREATE TABLE project_mark (
183
109
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
110
projectid INT4 REFERENCES project (projectid) NOT NULL,
184
111
componentid INT4,
185
112
marker INT4 REFERENCES login (loginid) NOT NULL,
192
CREATE TABLE exercise (
193
identifier TEXT PRIMARY KEY,
119
CREATE TABLE problem (
120
problemid SERIAL PRIMARY KEY NOT NULL,
121
identifier VARCHAR UNIQUE NOT NULL,
202
125
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 (
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,
225
171
loginid INT4 REFERENCES login (loginid) NOT NULL,
226
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
227
172
date TIMESTAMP NOT NULL,
228
attempt TEXT NOT NULL,
173
attempt VARCHAR NOT NULL,
229
174
complete BOOLEAN NOT NULL,
230
active BOOLEAN NOT NULL DEFAULT true,
231
PRIMARY KEY (loginid, ws_ex_id, date)
234
CREATE TABLE exercise_save (
235
loginid INT4 REFERENCES login (loginid) NOT NULL,
236
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
237
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,
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)