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  • Committer: William Grant
  • Date: 2009-03-25 05:41:15 UTC
  • mto: (1165.3.1 submissions)
  • mto: This revision was merged to the branch mainline in revision 1174.
  • Revision ID: grantw@unimelb.edu.au-20090325054115-r20cd821jhln02ku
Add NOT NULL name and short_name columns to project.

short_name must be unique over the entire offering.

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Lines of Context:
userdb/users.sql
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CREATE TABLE project (
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    projectid   SERIAL PRIMARY KEY NOT NULL,
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    synopsis    VARCHAR,
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    url         VARCHAR,
 
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    short_name  TEXT NOT NULL,
 
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    name        TEXT NOT NULL,
 
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    synopsis    TEXT,
 
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    url         TEXT,
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    projectsetid  INTEGER REFERENCES project_set (projectsetid) NOT NULL,
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    deadline    TIMESTAMP
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);
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CREATE OR REPLACE FUNCTION check_project_namespacing_insertupdate()
 
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RETURNS trigger AS '
 
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    DECLARE
 
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        oid INTEGER;
 
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    BEGIN
 
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        IF TG_OP = ''UPDATE'' THEN
 
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            IF NEW.projectsetid = OLD.projectsetid AND NEW.short_name = OLD.short_name THEN
 
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                RETURN NEW;
 
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            END IF;
 
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        END IF;
 
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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, project_set
 
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        WHERE project_set.offeringid = oid AND
 
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              project.projectsetid = project_set.projectsetid AND
 
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              project.short_name = NEW.short_name;
 
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        IF found THEN
 
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            RAISE EXCEPTION ''a project named % already exists in offering ID %'', NEW.short_name, oid;
 
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        END IF;
 
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        RETURN NEW;
 
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    END;
 
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' LANGUAGE 'plpgsql';
 
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CREATE TRIGGER check_project_namespacing
 
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    BEFORE INSERT OR UPDATE ON project
 
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    FOR EACH ROW EXECUTE PROCEDURE check_project_namespacing_insertupdate();
 
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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,