2
CREATE SEQUENCE login_unixid_seq MINVALUE 1000 MAXVALUE 29999 START WITH 5000;
2
5
loginid SERIAL PRIMARY KEY NOT NULL,
3
6
login VARCHAR UNIQUE NOT NULL,
5
state VARCHAR NOT NULL CHECK (state in ('no_agreement', 'enabled', 'disabled')),
6
unixid INT UNIQUE NOT NULL, -- unix user id
8
state VARCHAR NOT NULL CHECK (state in ('no_agreement', 'pending',
9
'enabled', 'disabled'))
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DEFAULT 'no_agreement',
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rolenm VARCHAR NOT NULL CHECK (rolenm in ('anyone', 'student',
13
'lecturer', 'admin')),
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unixid INT UNIQUE DEFAULT nextval('login_unixid_seq') NOT NULL,
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nick VARCHAR NOT NULL,
9
21
fullname VARCHAR NOT NULL,
10
rolenm VARCHAR NOT NULL CHECK (rolenm in ('anyone', 'student', 'tutor', 'lecturer', 'admin')),
11
studentid VARCHAR -- may be null
22
studentid VARCHAR, -- may be null
29
CREATE TABLE subject (
30
subjectid SERIAL PRIMARY KEY NOT NULL,
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subj_code VARCHAR UNIQUE NOT NULL,
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subj_name VARCHAR NOT NULL,
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subj_short_name VARCHAR UNIQUE NOT NULL,
37
CREATE TABLE semester (
38
semesterid SERIAL PRIMARY KEY NOT NULL,
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year CHAR(4) NOT NULL,
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semester CHAR(1) NOT NULL,
42
UNIQUE (year, semester)
45
CREATE OR REPLACE FUNCTION deactivate_semester_enrolments_update()
48
IF OLD.active = true AND NEW.active = false THEN
49
UPDATE enrolment SET active=false WHERE offeringid IN (
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SELECT offeringid FROM offering WHERE offering.semesterid = NEW.semesterid);
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CREATE TRIGGER deactivate_semester_enrolments
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AFTER UPDATE ON semester
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FOR EACH ROW EXECUTE PROCEDURE deactivate_semester_enrolments_update();
14
60
CREATE TABLE offering (
15
61
offeringid SERIAL PRIMARY KEY NOT NULL,
16
subj_name VARCHAR NOT NULL,
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subj_code VARCHAR NOT NULL,
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year CHAR(4) NOT NULL,
19
semester CHAR(1) NOT NULL,
62
subject INT4 REFERENCES subject (subjectid) NOT NULL,
63
semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
64
groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
65
CHECK (groups_student_permissions in ('none', 'invite', 'create')),
66
UNIQUE (subject, semesterid)
69
-- Projects and groups
70
-- -------------------
72
CREATE TABLE project_set (
73
projectsetid SERIAL PRIMARY KEY NOT NULL,
74
offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
75
max_students_per_group INTEGER NOT NULL DEFAULT 4
23
78
CREATE TABLE project (
24
79
projectid SERIAL PRIMARY KEY NOT NULL,
27
offeringid INT4 REFERENCES offering (offeringid) NOT NULL,
82
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
31
86
CREATE TABLE project_group (
32
87
groupnm VARCHAR NOT NULL,
33
88
groupid SERIAL PRIMARY KEY NOT NULL,
34
offeringid INT4 REFERENCES offering (offeringid),
89
projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
36
91
createdby INT4 REFERENCES login (loginid) NOT NULL,
37
92
epoch TIMESTAMP NOT NULL,
38
UNIQUE (offeringid, groupnm)
93
UNIQUE (projectsetid, groupnm)
96
CREATE OR REPLACE FUNCTION check_group_namespacing_insertupdate()
101
SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
102
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;
104
RAISE EXCEPTION ''a project group named % already exists in offering ID %'', NEW.groupnm, oid;
108
' LANGUAGE 'plpgsql';
110
CREATE TRIGGER check_group_namespacing
111
BEFORE INSERT OR UPDATE ON project_group
112
FOR EACH ROW EXECUTE PROCEDURE check_group_namespacing_insertupdate();
41
114
CREATE TABLE group_invitation (
42
115
loginid INT4 REFERENCES login (loginid) NOT NULL,
43
116
groupid INT4 REFERENCES project_group (groupid) NOT NULL,
64
135
special_supp_result VARCHAR,
137
active BOOL NOT NULL DEFAULT true,
66
138
PRIMARY KEY (loginid,offeringid)
141
CREATE OR REPLACE FUNCTION confirm_active_semester_insertupdate()
146
SELECT semester.active INTO active FROM offering, semester WHERE offeringid=NEW.offeringid AND semester.semesterid = offering.semesterid;
147
IF NOT active AND NEW.active = true THEN
148
RAISE EXCEPTION ''cannot have active enrolment for % in offering %, as the semester is inactive'', NEW.loginid, NEW.offeringid;
152
' LANGUAGE 'plpgsql';
154
CREATE TRIGGER confirm_active_semester
155
BEFORE INSERT OR UPDATE ON enrolment
156
FOR EACH ROW EXECUTE PROCEDURE confirm_active_semester_insertupdate();
69
158
CREATE TABLE assessed (
70
159
assessedid SERIAL PRIMARY KEY NOT NULL,
71
160
loginid INT4 REFERENCES login (loginid),
72
161
groupid INT4 REFERENCES project_group (groupid),
162
projectid INT4 REFERENCES project (projectid) NOT NULL,
73
163
-- exactly one of loginid and groupid must be non-null
74
164
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
75
165
OR (loginid IS NULL AND groupid IS NOT NULL))
78
168
CREATE TABLE project_extension (
79
169
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
80
projectid INT4 REFERENCES project (projectid) NOT NULL,
81
170
deadline TIMESTAMP NOT NULL,
82
171
approver INT4 REFERENCES login (loginid) NOT NULL,
175
CREATE TABLE project_submission (
176
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
177
path VARCHAR NOT NULL,
178
revision INT4 NOT NULL
86
181
CREATE TABLE project_mark (
87
182
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
88
projectid INT4 REFERENCES project (projectid) NOT NULL,
90
184
marker INT4 REFERENCES login (loginid) NOT NULL,
97
CREATE TABLE problem (
98
problemid SERIAL PRIMARY KEY NOT NULL,
102
CREATE TABLE problem_tag (
103
problemid INT4 REFERENCES problem (problemid),
104
tag VARCHAR NOT NULL,
106
standard BOOLEAN NOT NULL,
107
added_by INT4 REFERENCES login (loginid) NOT NULL,
108
date TIMESTAMP NOT NULL,
109
PRIMARY KEY (problemid,added_by,tag)
112
CREATE TABLE problem_test_case (
113
problemid INT4 REFERENCES problem (problemid) NOT NULL,
114
testcaseid SERIAL UNIQUE NOT NULL,
117
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
120
CREATE TABLE problem_test_case_tag (
121
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
122
tag VARCHAR NOT NULL,
124
standard BOOLEAN NOT NULL,
125
added_by INT4 REFERENCES login (loginid) NOT NULL,
126
date TIMESTAMP NOT NULL,
127
PRIMARY KEY (testcaseid,added_by,tag)
130
CREATE TABLE problem_attempt (
131
problemid INT4 REFERENCES problem (problemid) NOT NULL,
193
CREATE TABLE exercise (
194
identifier TEXT PRIMARY KEY,
203
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 (
132
226
loginid INT4 REFERENCES login (loginid) NOT NULL,
227
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
133
228
date TIMESTAMP NOT NULL,
134
attempt VARCHAR NOT NULL,
229
attempt TEXT NOT NULL,
135
230
complete BOOLEAN NOT NULL,
136
PRIMARY KEY (problemid,loginid,date)
231
active BOOLEAN NOT NULL DEFAULT true,
232
PRIMARY KEY (loginid, ws_ex_id, date)
139
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
141
CREATE TABLE problem_attempt_breakdown (
142
problemid INT4 REFERENCES problem (problemid) NOT NULL,
143
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
235
CREATE TABLE exercise_save (
144
236
loginid INT4 REFERENCES login (loginid) NOT NULL,
237
ws_ex_id INT4 REFERENCES worksheet_exercise (ws_ex_id) NOT NULL,
145
238
date TIMESTAMP NOT NULL,
149
CREATE TABLE problem_prerequisite (
150
parent INT4 REFERENCES problem (problemid) NOT NULL,
151
child INT4 REFERENCES problem (problemid) NOT NULL,
152
PRIMARY KEY (parent,child)
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,