1
DROP TABLE users CASCADE;
1
CREATE SEQUENCE login_unixid_seq MINVALUE 1000 MAXVALUE 29999 START WITH 5000;
4
loginid SERIAL PRIMARY KEY NOT NULL,
3
5
login VARCHAR UNIQUE NOT NULL,
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loginid SERIAL PRIMARY KEY NOT NULL,
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studentid VARCHAR -- may be null
10
DROP TABLE offerings CASCADE;
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CREATE TABLE offerings (
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state VARCHAR NOT NULL CHECK (state in ('no_agreement', 'pending',
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'enabled', 'disabled')),
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rolenm VARCHAR NOT NULL CHECK (rolenm in ('anyone', 'student',
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'lecturer', 'admin')),
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unixid INT UNIQUE DEFAULT nextval('login_unixid_seq') NOT NULL,
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nick VARCHAR NOT NULL,
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fullname VARCHAR NOT NULL,
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studentid VARCHAR, -- may be null
27
CREATE TABLE subject (
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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,
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CREATE TABLE semester (
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semesterid SERIAL PRIMARY KEY NOT NULL,
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year CHAR(4) NOT NULL,
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semester CHAR(1) NOT NULL,
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UNIQUE (year, semester)
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CREATE OR REPLACE FUNCTION deactivate_semester_enrolments_update()
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IF OLD.active = true AND NEW.active = false THEN
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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();
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CREATE TABLE offering (
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offeringid SERIAL PRIMARY KEY NOT NULL,
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subj_name VARCHAR NOT NULL,
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subj_code VARCHAR NOT NULL,
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year CHAR(4) NOT NULL,
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DROP TABLE groups CASCADE;
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groupnm VARCHAR NOT NULL,
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subject INT4 REFERENCES subject (subjectid) NOT NULL,
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semesterid INTEGER REFERENCES semester (semesterid) NOT NULL,
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groups_student_permissions VARCHAR NOT NULL DEFAULT 'none',
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CHECK (groups_student_permissions in ('none', 'invite', 'create')),
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UNIQUE (subject, semesterid)
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-- Projects and groups
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-- -------------------
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CREATE TABLE project_set (
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projectsetid SERIAL PRIMARY KEY NOT NULL,
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offeringid INTEGER REFERENCES offering (offeringid) NOT NULL,
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max_students_per_group INTEGER NOT NULL DEFAULT 4
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CREATE TABLE project (
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projectid SERIAL PRIMARY KEY NOT NULL,
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projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
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CREATE TABLE project_group (
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groupnm VARCHAR NOT NULL,
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groupid SERIAL PRIMARY KEY NOT NULL,
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offeringid INT4 REFERENCES offerings (offeringid),
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projectsetid INTEGER REFERENCES project_set (projectsetid) NOT NULL,
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UNIQUE (offeringid, groupnm)
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createdby INT4 REFERENCES login (loginid) NOT NULL,
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epoch TIMESTAMP NOT NULL,
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UNIQUE (projectsetid, groupnm)
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DROP TABLE group_invitations CASCADE;
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CREATE TABLE group_invitations (
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loginid INT4 REFERENCES users (loginid),
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groupid INT4 REFERENCES groups (groupid),
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CREATE OR REPLACE FUNCTION check_group_namespacing_insertupdate()
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SELECT offeringid INTO oid FROM project_set WHERE project_set.projectsetid = NEW.projectsetid;
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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;
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RAISE EXCEPTION ''a project group named % already exists in offering ID %'', NEW.groupnm, oid;
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' LANGUAGE 'plpgsql';
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CREATE TRIGGER check_group_namespacing
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BEFORE INSERT OR UPDATE ON project_group
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FOR EACH ROW EXECUTE PROCEDURE check_group_namespacing_insertupdate();
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CREATE TABLE group_invitation (
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loginid INT4 REFERENCES login (loginid) NOT NULL,
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groupid INT4 REFERENCES project_group (groupid) NOT NULL,
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inviter INT4 REFERENCES login (loginid) NOT NULL,
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invited TIMESTAMP NOT NULL,
32
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UNIQUE (loginid,groupid)
35
DROP TABLE group_members CASCADE;
36
CREATE TABLE group_members (
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loginid INT4 REFERENCES users (loginid),
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groupid INT4 REFERENCES groups (groupid),
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projectid INT4 REFERENCES projects (projectid),
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UNIQUE (loginid,projectid),
121
CREATE TABLE group_member (
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loginid INT4 REFERENCES login (loginid),
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groupid INT4 REFERENCES project_group (groupid),
41
124
PRIMARY KEY (loginid,groupid)
44
DROP TABLE enrolment CASCADE;
45
127
CREATE TABLE enrolment (
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loginid INT4 REFERENCES users (loginid),
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offeringid INT4 REFERENCES offerings (offeringid),
128
loginid INT4 REFERENCES login (loginid),
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offeringid INT4 REFERENCES offering (offeringid),
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special_result VARCHAR,
133
special_supp_result VARCHAR,
135
active BOOL NOT NULL DEFAULT true,
51
136
PRIMARY KEY (loginid,offeringid)
54
DROP TABLE roles CASCADE;
56
loginid INT4 PRIMARY KEY REFERENCES users (loginid),
60
DROP TABLE projects CASCADE;
61
CREATE TABLE projects (
62
projectid SERIAL PRIMARY KEY NOT NULL,
65
offeringid INT4 REFERENCES offerings (offeringid) NOT NULL,
69
DROP TABLE project_extension CASCADE;
139
CREATE OR REPLACE FUNCTION confirm_active_semester_insertupdate()
144
SELECT semester.active INTO active FROM offering, semester WHERE offeringid=NEW.offeringid AND semester.semesterid = offering.semesterid;
145
IF NOT active AND NEW.active = true THEN
146
RAISE EXCEPTION ''cannot have active enrolment for % in offering %, as the semester is inactive'', NEW.loginid, NEW.offeringid;
150
' LANGUAGE 'plpgsql';
152
CREATE TRIGGER confirm_active_semester
153
BEFORE INSERT OR UPDATE ON enrolment
154
FOR EACH ROW EXECUTE PROCEDURE confirm_active_semester_insertupdate();
156
CREATE TABLE assessed (
157
assessedid SERIAL PRIMARY KEY NOT NULL,
158
loginid INT4 REFERENCES login (loginid),
159
groupid INT4 REFERENCES project_group (groupid),
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projectid INT4 REFERENCES project (projectid) NOT NULL,
161
-- exactly one of loginid and groupid must be non-null
162
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
163
OR (loginid IS NULL AND groupid IS NOT NULL))
70
166
CREATE TABLE project_extension (
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loginid INT4 REFERENCES users (loginid),
72
groupid INT4 REFERENCES groups (groupid),
73
projectid INT4 REFERENCES projects (projectid) NOT NULL,
167
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
74
168
deadline TIMESTAMP NOT NULL,
75
approver INT4 REFERENCES users (loginid) NOT NULL,
77
-- exactly one of loginid and groupid must be non-null
78
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
79
OR (loginid IS NULL AND groupid IS NOT NULL))
82
DROP TABLE project_mark CASCADE;
169
approver INT4 REFERENCES login (loginid) NOT NULL,
173
CREATE TABLE project_submission (
174
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
175
path VARCHAR NOT NULL,
176
revision INT4 NOT NULL
83
179
CREATE TABLE project_mark (
84
loginid INT4 REFERENCES users (loginid),
85
groupid INT4 REFERENCES groups (groupid),
86
projectid INT4 REFERENCES projects (projectid) NOT NULL,
180
assessedid INT4 REFERENCES assessed (assessedid) NOT NULL,
88
marker INT4 REFERENCES users (loginid) NOT NULL,
182
marker INT4 REFERENCES login (loginid) NOT NULL,
93
-- exactly one of loginid and groupid must be non-null
94
CHECK ((loginid IS NOT NULL AND groupid IS NULL)
95
OR (loginid IS NULL AND groupid IS NOT NULL))
98
DROP TABLE problem CASCADE;
99
192
CREATE TABLE problem (
100
193
problemid SERIAL PRIMARY KEY NOT NULL,
194
identifier VARCHAR UNIQUE NOT NULL,
104
DROP TABLE problem_tags CASCADE;
105
CREATE TABLE problem_tags (
106
problemid INT4 REFERENCES tutorial_problem (problemid),
198
CREATE TABLE worksheet (
199
worksheetid SERIAL PRIMARY KEY NOT NULL,
200
subject VARCHAR NOT NULL,
201
identifier VARCHAR NOT NULL,
204
UNIQUE (subject, identifier)
207
CREATE TABLE worksheet_problem (
208
worksheetid INT4 REFERENCES worksheet (worksheetid) NOT NULL,
209
problemid INT4 REFERENCES problem (problemid) NOT NULL,
211
PRIMARY KEY (worksheetid, problemid)
214
CREATE TABLE problem_tag (
215
problemid INT4 REFERENCES problem (problemid),
107
216
tag VARCHAR NOT NULL,
108
added_by INT4 REFERENCES users (loginid) NOT NULL,
218
standard BOOLEAN NOT NULL,
219
added_by INT4 REFERENCES login (loginid) NOT NULL,
109
220
date TIMESTAMP NOT NULL,
110
221
PRIMARY KEY (problemid,added_by,tag)
113
DROP TABLE problem_test_case CASCADE;
114
224
CREATE TABLE problem_test_case (
115
225
problemid INT4 REFERENCES problem (problemid) NOT NULL,
116
226
testcaseid SERIAL UNIQUE NOT NULL,
119
229
visibility VARCHAR CHECK (visibility in ('public', 'protected', 'private'))
122
DROP TABLE problem_test_case_tags CASCADE;
123
CREATE TABLE problem_test_case_tags (
232
CREATE TABLE problem_test_case_tag (
124
233
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
125
234
tag VARCHAR NOT NULL,
126
235
description VARCHAR,
127
added_by INT4 REFERENCES users (loginid) NOT NULL,
236
standard BOOLEAN NOT NULL,
237
added_by INT4 REFERENCES login (loginid) NOT NULL,
128
238
date TIMESTAMP NOT NULL,
129
239
PRIMARY KEY (testcaseid,added_by,tag)
132
DROP TABLE problem_attempt CASCADE;
133
242
CREATE TABLE problem_attempt (
134
243
problemid INT4 REFERENCES problem (problemid) NOT NULL,
135
loginid INT4 REFERENCES users (loginid) NOT NULL,
244
loginid INT4 REFERENCES login (loginid) NOT NULL,
136
245
date TIMESTAMP NOT NULL,
137
246
attempt VARCHAR NOT NULL,
138
247
complete BOOLEAN NOT NULL,
248
active BOOLEAN NOT NULL DEFAULT true,
139
249
PRIMARY KEY (problemid,loginid,date)
142
DROP INDEX problem_attempt_index;
252
CREATE TABLE problem_save (
253
problemid INT4 REFERENCES problem (problemid) NOT NULL,
254
loginid INT4 REFERENCES login (loginid) NOT NULL,
255
date TIMESTAMP NOT NULL,
256
text VARCHAR NOT NULL,
257
PRIMARY KEY (problemid,loginid)
143
260
CREATE INDEX problem_attempt_index ON problem_attempt (problemid, loginid);
145
DROP TABLE problem_attempt_breakdown CASCADE;
146
262
CREATE TABLE problem_attempt_breakdown (
147
263
problemid INT4 REFERENCES problem (problemid) NOT NULL,
148
264
testcaseid INT4 REFERENCES problem_test_case (testcaseid) NOT NULL,
149
loginid INT4 REFERENCES users (loginid) NOT NULL,
265
loginid INT4 REFERENCES login (loginid) NOT NULL,
150
266
date TIMESTAMP NOT NULL,
154
DROP TABLE problem_prerequisites CASCADE;
155
CREATE TABLE problem_prerequisites (
270
CREATE TABLE problem_prerequisite (
156
271
parent INT4 REFERENCES problem (problemid) NOT NULL,
157
272
child INT4 REFERENCES problem (problemid) NOT NULL,
158
273
PRIMARY KEY (parent,child)