3
-- Check that the provided name is sane for use in URLs.
4
CREATE OR REPLACE FUNCTION valid_url_name(name text) RETURNS boolean AS
7
RETURN name ~ E'^[a-z0-9][a-z0-9_\+\.\-]*$';
11
-- Just like valid_url_name, except that @ is permitted (so we can use a
12
-- reasonable subset of email addresses as usernames).
13
CREATE OR REPLACE FUNCTION valid_login_name(name text) RETURNS boolean AS
16
RETURN name ~ E'^[a-z0-9][a-z0-9@_\+\.\-]*$';
18
$$ LANGUAGE 'plpgsql';
20
ALTER TABLE login ADD CONSTRAINT login_login_check CHECK (valid_login_name(login));
21
ALTER TABLE subject ADD CONSTRAINT subject_subj_short_name_check CHECK (valid_url_name(subj_short_name));
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ALTER TABLE semester ADD CONSTRAINT semester_year_check CHECK (valid_url_name(year));
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ALTER TABLE semester ADD CONSTRAINT semester_semester_check CHECK (valid_url_name(semester));
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ALTER TABLE project ADD CONSTRAINT project_short_name_check CHECK (valid_url_name(short_name));
25
ALTER TABLE project_group ADD CONSTRAINT project_group_groupnm_check CHECK (valid_url_name(groupnm));
26
ALTER TABLE exercise ADD CONSTRAINT exercise_identifier_check CHECK (valid_url_name(identifier));
27
ALTER TABLE worksheet ADD CONSTRAINT worksheet_identifier_check CHECK (valid_url_name(identifier));