plpgsql.sql
上传用户:blenddy
上传日期:2007-01-07
资源大小:6495k
文件大小:44k
- -- ************************************************************
- -- *
- -- * Tables for the patchfield test of PL/pgSQL
- -- *
- -- * $Header: /usr/local/cvsroot/pgsql/src/test/regress/sql/plpgsql.sql,v 1.1 1998/10/01 03:38:45 scrappy Exp $
- -- *
- -- ************************************************************
- create table Room (
- roomno char(8),
- comment text
- );
- create unique index Room_rno on Room using btree (roomno bpchar_ops);
- create table WSlot (
- slotname char(20),
- roomno char(8),
- slotlink char(20),
- backlink char(20)
- );
- create unique index WSlot_name on WSlot using btree (slotname bpchar_ops);
- create table PField (
- name text,
- comment text
- );
- create unique index PField_name on PField using btree (name text_ops);
- create table PSlot (
- slotname char(20),
- pfname text,
- slotlink char(20),
- backlink char(20)
- );
- create unique index PSlot_name on PSlot using btree (slotname bpchar_ops);
- create table PLine (
- slotname char(20),
- phonenumber char(20),
- comment text,
- backlink char(20)
- );
- create unique index PLine_name on PLine using btree (slotname bpchar_ops);
- create table Hub (
- name char(14),
- comment text,
- nslots integer
- );
- create unique index Hub_name on Hub using btree (name bpchar_ops);
- create table HSlot (
- slotname char(20),
- hubname char(14),
- slotno integer,
- slotlink char(20)
- );
- create unique index HSlot_name on HSlot using btree (slotname bpchar_ops);
- create index HSlot_hubname on HSlot using btree (hubname bpchar_ops);
- create table System (
- name text,
- comment text
- );
- create unique index System_name on System using btree (name text_ops);
- create table IFace (
- slotname char(20),
- sysname text,
- ifname text,
- slotlink char(20)
- );
- create unique index IFace_name on IFace using btree (slotname bpchar_ops);
- create table PHone (
- slotname char(20),
- comment text,
- slotlink char(20)
- );
- create unique index PHone_name on PHone using btree (slotname bpchar_ops);
- -- ************************************************************
- -- *
- -- * Trigger procedures and functions for the patchfield
- -- * test of PL/pgSQL
- -- *
- -- * $Header: /usr/local/cvsroot/pgsql/src/test/regress/sql/plpgsql.sql,v 1.1 1998/10/01 03:38:45 scrappy Exp $
- -- *
- -- ************************************************************
- -- ************************************************************
- -- * AFTER UPDATE on Room
- -- * - If room no changes let wall slots follow
- -- ************************************************************
- create function tg_room_au() returns opaque as '
- begin
- if new.roomno != old.roomno then
- update WSlot set roomno = new.roomno where roomno = old.roomno;
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_room_au after update
- on Room for each row execute procedure tg_room_au();
- -- ************************************************************
- -- * AFTER DELETE on Room
- -- * - delete wall slots in this room
- -- ************************************************************
- create function tg_room_ad() returns opaque as '
- begin
- delete from WSlot where roomno = old.roomno;
- return old;
- end;
- ' language 'plpgsql';
- create trigger tg_room_ad after delete
- on Room for each row execute procedure tg_room_ad();
- -- ************************************************************
- -- * BEFORE INSERT or UPDATE on WSlot
- -- * - Check that room exists
- -- ************************************************************
- create function tg_wslot_biu() returns opaque as '
- begin
- if count(*) = 0 from Room where roomno = new.roomno then
- raise exception ''Room % does not exist'', new.roomno;
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_wslot_biu before insert or update
- on WSlot for each row execute procedure tg_wslot_biu();
- -- ************************************************************
- -- * AFTER UPDATE on PField
- -- * - Let PSlots of this field follow
- -- ************************************************************
- create function tg_pfield_au() returns opaque as '
- begin
- if new.name != old.name then
- update PSlot set pfname = new.name where pfname = old.name;
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_pfield_au after update
- on PField for each row execute procedure tg_pfield_au();
- -- ************************************************************
- -- * AFTER DELETE on PField
- -- * - Remove all slots of this patchfield
- -- ************************************************************
- create function tg_pfield_ad() returns opaque as '
- begin
- delete from PSlot where pfname = old.name;
- return old;
- end;
- ' language 'plpgsql';
- create trigger tg_pfield_ad after delete
- on PField for each row execute procedure tg_pfield_ad();
- -- ************************************************************
- -- * BEFORE INSERT or UPDATE on PSlot
- -- * - Ensure that our patchfield does exist
- -- ************************************************************
- create function tg_pslot_biu() returns opaque as '
- declare
- pfrec record;
- rename new to ps;
- begin
- select into pfrec * from PField where name = ps.pfname;
- if not found then
- raise exception ''Patchfield "%" does not exist'', ps.pfname;
- end if;
- return ps;
- end;
- ' language 'plpgsql';
- create trigger tg_pslot_biu before insert or update
- on PSlot for each row execute procedure tg_pslot_biu();
- -- ************************************************************
- -- * AFTER UPDATE on System
- -- * - If system name changes let interfaces follow
- -- ************************************************************
- create function tg_system_au() returns opaque as '
- begin
- if new.name != old.name then
- update IFace set sysname = new.name where sysname = old.name;
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_system_au after update
- on System for each row execute procedure tg_system_au();
- -- ************************************************************
- -- * BEFORE INSERT or UPDATE on IFace
- -- * - set the slotname to IF.sysname.ifname
- -- ************************************************************
- create function tg_iface_biu() returns opaque as '
- declare
- sname text;
- sysrec record;
- begin
- select into sysrec * from system where name = new.sysname;
- if not found then
- raise exception ''system "%" does not exist'', new.sysname;
- end if;
- sname := ''IF.'' || new.sysname;
- sname := sname || ''.'';
- sname := sname || new.ifname;
- if length(sname) > 20 then
- raise exception ''IFace slotname "%" too long (20 char max)'', sname;
- end if;
- new.slotname := sname;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_iface_biu before insert or update
- on IFace for each row execute procedure tg_iface_biu();
- -- ************************************************************
- -- * AFTER INSERT or UPDATE or DELETE on Hub
- -- * - insert/delete/rename slots as required
- -- ************************************************************
- create function tg_hub_a() returns opaque as '
- declare
- hname text;
- dummy integer;
- begin
- if tg_op = ''INSERT'' then
- dummy := tg_hub_adjustslots(new.name, 0, new.nslots);
- return new;
- end if;
- if tg_op = ''UPDATE'' then
- if new.name != old.name then
- update HSlot set hubname = new.name where hubname = old.name;
- end if;
- dummy := tg_hub_adjustslots(new.name, old.nslots, new.nslots);
- return new;
- end if;
- if tg_op = ''DELETE'' then
- dummy := tg_hub_adjustslots(old.name, old.nslots, 0);
- return old;
- end if;
- end;
- ' language 'plpgsql';
- create trigger tg_hub_a after insert or update or delete
- on Hub for each row execute procedure tg_hub_a();
- -- ************************************************************
- -- * Support function to add/remove slots of Hub
- -- ************************************************************
- create function tg_hub_adjustslots(bpchar, integer, integer)
- returns integer as '
- declare
- hname alias for $1;
- oldnslots alias for $2;
- newnslots alias for $3;
- begin
- if newnslots = oldnslots then
- return 0;
- end if;
- if newnslots < oldnslots then
- delete from HSlot where hubname = hname and slotno > newnslots;
- return 0;
- end if;
- for i in oldnslots + 1 .. newnslots loop
- insert into HSlot (slotname, hubname, slotno, slotlink)
- values (''HS.dummy'', hname, i, '''');
- end loop;
- return 0;
- end;
- ' language 'plpgsql';
- -- ************************************************************
- -- * BEFORE INSERT or UPDATE on HSlot
- -- * - prevent from manual manipulation
- -- * - set the slotname to HS.hubname.slotno
- -- ************************************************************
- create function tg_hslot_biu() returns opaque as '
- declare
- sname text;
- xname HSlot.slotname%TYPE;
- hubrec record;
- begin
- select into hubrec * from Hub where name = new.hubname;
- if not found then
- raise exception ''no manual manipulation of HSlot'';
- end if;
- if new.slotno < 1 or new.slotno > hubrec.nslots then
- raise exception ''no manual manipulation of HSlot'';
- end if;
- if tg_op = ''UPDATE'' then
- if new.hubname != old.hubname then
- if count(*) > 0 from Hub where name = old.hubname then
- raise exception ''no manual manipulation of HSlot'';
- end if;
- end if;
- end if;
- sname := ''HS.'' || trim(new.hubname);
- sname := sname || ''.'';
- sname := sname || new.slotno::text;
- if length(sname) > 20 then
- raise exception ''HSlot slotname "%" too long (20 char max)'', sname;
- end if;
- new.slotname := sname;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_hslot_biu before insert or update
- on HSlot for each row execute procedure tg_hslot_biu();
- -- ************************************************************
- -- * BEFORE DELETE on HSlot
- -- * - prevent from manual manipulation
- -- ************************************************************
- create function tg_hslot_bd() returns opaque as '
- declare
- hubrec record;
- begin
- select into hubrec * from Hub where name = old.hubname;
- if not found then
- return old;
- end if;
- if old.slotno > hubrec.nslots then
- return old;
- end if;
- raise exception ''no manual manipulation of HSlot'';
- end;
- ' language 'plpgsql';
- create trigger tg_hslot_bd before delete
- on HSlot for each row execute procedure tg_hslot_bd();
- -- ************************************************************
- -- * BEFORE INSERT on all slots
- -- * - Check name prefix
- -- ************************************************************
- create function tg_chkslotname() returns opaque as '
- begin
- if substr(new.slotname, 1, 2) != tg_argv[0] then
- raise exception ''slotname must begin with %'', tg_argv[0];
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_chkslotname before insert
- on PSlot for each row execute procedure tg_chkslotname('PS');
- create trigger tg_chkslotname before insert
- on WSlot for each row execute procedure tg_chkslotname('WS');
- create trigger tg_chkslotname before insert
- on PLine for each row execute procedure tg_chkslotname('PL');
- create trigger tg_chkslotname before insert
- on IFace for each row execute procedure tg_chkslotname('IF');
- create trigger tg_chkslotname before insert
- on PHone for each row execute procedure tg_chkslotname('PH');
- -- ************************************************************
- -- * BEFORE INSERT or UPDATE on all slots with slotlink
- -- * - Set slotlink to empty string if NULL value given
- -- ************************************************************
- create function tg_chkslotlink() returns opaque as '
- begin
- if new.slotlink isnull then
- new.slotlink := '''';
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_chkslotlink before insert or update
- on PSlot for each row execute procedure tg_chkslotlink();
- create trigger tg_chkslotlink before insert or update
- on WSlot for each row execute procedure tg_chkslotlink();
- create trigger tg_chkslotlink before insert or update
- on IFace for each row execute procedure tg_chkslotlink();
- create trigger tg_chkslotlink before insert or update
- on HSlot for each row execute procedure tg_chkslotlink();
- create trigger tg_chkslotlink before insert or update
- on PHone for each row execute procedure tg_chkslotlink();
- -- ************************************************************
- -- * BEFORE INSERT or UPDATE on all slots with backlink
- -- * - Set backlink to empty string if NULL value given
- -- ************************************************************
- create function tg_chkbacklink() returns opaque as '
- begin
- if new.backlink isnull then
- new.backlink := '''';
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_chkbacklink before insert or update
- on PSlot for each row execute procedure tg_chkbacklink();
- create trigger tg_chkbacklink before insert or update
- on WSlot for each row execute procedure tg_chkbacklink();
- create trigger tg_chkbacklink before insert or update
- on PLine for each row execute procedure tg_chkbacklink();
- -- ************************************************************
- -- * BEFORE UPDATE on PSlot
- -- * - do delete/insert instead of update if name changes
- -- ************************************************************
- create function tg_pslot_bu() returns opaque as '
- begin
- if new.slotname != old.slotname then
- delete from PSlot where slotname = old.slotname;
- insert into PSlot (
- slotname,
- pfname,
- slotlink,
- backlink
- ) values (
- new.slotname,
- new.pfname,
- new.slotlink,
- new.backlink
- );
- return null;
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_pslot_bu before update
- on PSlot for each row execute procedure tg_pslot_bu();
- -- ************************************************************
- -- * BEFORE UPDATE on WSlot
- -- * - do delete/insert instead of update if name changes
- -- ************************************************************
- create function tg_wslot_bu() returns opaque as '
- begin
- if new.slotname != old.slotname then
- delete from WSlot where slotname = old.slotname;
- insert into WSlot (
- slotname,
- roomno,
- slotlink,
- backlink
- ) values (
- new.slotname,
- new.roomno,
- new.slotlink,
- new.backlink
- );
- return null;
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_wslot_bu before update
- on WSlot for each row execute procedure tg_Wslot_bu();
- -- ************************************************************
- -- * BEFORE UPDATE on PLine
- -- * - do delete/insert instead of update if name changes
- -- ************************************************************
- create function tg_pline_bu() returns opaque as '
- begin
- if new.slotname != old.slotname then
- delete from PLine where slotname = old.slotname;
- insert into PLine (
- slotname,
- phonenumber,
- comment,
- backlink
- ) values (
- new.slotname,
- new.phonenumber,
- new.comment,
- new.backlink
- );
- return null;
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_pline_bu before update
- on PLine for each row execute procedure tg_pline_bu();
- -- ************************************************************
- -- * BEFORE UPDATE on IFace
- -- * - do delete/insert instead of update if name changes
- -- ************************************************************
- create function tg_iface_bu() returns opaque as '
- begin
- if new.slotname != old.slotname then
- delete from IFace where slotname = old.slotname;
- insert into IFace (
- slotname,
- sysname,
- ifname,
- slotlink
- ) values (
- new.slotname,
- new.sysname,
- new.ifname,
- new.slotlink
- );
- return null;
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_iface_bu before update
- on IFace for each row execute procedure tg_iface_bu();
- -- ************************************************************
- -- * BEFORE UPDATE on HSlot
- -- * - do delete/insert instead of update if name changes
- -- ************************************************************
- create function tg_hslot_bu() returns opaque as '
- begin
- if new.slotname != old.slotname or new.hubname != old.hubname then
- delete from HSlot where slotname = old.slotname;
- insert into HSlot (
- slotname,
- hubname,
- slotno,
- slotlink
- ) values (
- new.slotname,
- new.hubname,
- new.slotno,
- new.slotlink
- );
- return null;
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_hslot_bu before update
- on HSlot for each row execute procedure tg_hslot_bu();
- -- ************************************************************
- -- * BEFORE UPDATE on PHone
- -- * - do delete/insert instead of update if name changes
- -- ************************************************************
- create function tg_phone_bu() returns opaque as '
- begin
- if new.slotname != old.slotname then
- delete from PHone where slotname = old.slotname;
- insert into PHone (
- slotname,
- comment,
- slotlink
- ) values (
- new.slotname,
- new.comment,
- new.slotlink
- );
- return null;
- end if;
- return new;
- end;
- ' language 'plpgsql';
- create trigger tg_phone_bu before update
- on PHone for each row execute procedure tg_phone_bu();
- -- ************************************************************
- -- * AFTER INSERT or UPDATE or DELETE on slot with backlink
- -- * - Ensure that the opponent correctly points back to us
- -- ************************************************************
- create function tg_backlink_a() returns opaque as '
- declare
- dummy integer;
- begin
- if tg_op = ''INSERT'' then
- if new.backlink != '''' then
- dummy := tg_backlink_set(new.backlink, new.slotname);
- end if;
- return new;
- end if;
- if tg_op = ''UPDATE'' then
- if new.backlink != old.backlink then
- if old.backlink != '''' then
- dummy := tg_backlink_unset(old.backlink, old.slotname);
- end if;
- if new.backlink != '''' then
- dummy := tg_backlink_set(new.backlink, new.slotname);
- end if;
- else
- if new.slotname != old.slotname and new.backlink != '''' then
- dummy := tg_slotlink_set(new.backlink, new.slotname);
- end if;
- end if;
- return new;
- end if;
- if tg_op = ''DELETE'' then
- if old.backlink != '''' then
- dummy := tg_backlink_unset(old.backlink, old.slotname);
- end if;
- return old;
- end if;
- end;
- ' language 'plpgsql';
- create trigger tg_backlink_a after insert or update or delete
- on PSlot for each row execute procedure tg_backlink_a('PS');
- create trigger tg_backlink_a after insert or update or delete
- on WSlot for each row execute procedure tg_backlink_a('WS');
- create trigger tg_backlink_a after insert or update or delete
- on PLine for each row execute procedure tg_backlink_a('PL');
- -- ************************************************************
- -- * Support function to set the opponents backlink field
- -- * if it does not already point to the requested slot
- -- ************************************************************
- create function tg_backlink_set(bpchar, bpchar)
- returns integer as '
- declare
- myname alias for $1;
- blname alias for $2;
- mytype char(2);
- link char(4);
- rec record;
- begin
- mytype := substr(myname, 1, 2);
- link := mytype || substr(blname, 1, 2);
- if link = ''PLPL'' then
- raise exception
- ''backlink between two phone lines does not make sense'';
- end if;
- if link in (''PLWS'', ''WSPL'') then
- raise exception
- ''direct link of phone line to wall slot not permitted'';
- end if;
- if mytype = ''PS'' then
- select into rec * from PSlot where slotname = myname;
- if not found then
- raise exception ''% does not exists'', myname;
- end if;
- if rec.backlink != blname then
- update PSlot set backlink = blname where slotname = myname;
- end if;
- return 0;
- end if;
- if mytype = ''WS'' then
- select into rec * from WSlot where slotname = myname;
- if not found then
- raise exception ''% does not exists'', myname;
- end if;
- if rec.backlink != blname then
- update WSlot set backlink = blname where slotname = myname;
- end if;
- return 0;
- end if;
- if mytype = ''PL'' then
- select into rec * from PLine where slotname = myname;
- if not found then
- raise exception ''% does not exists'', myname;
- end if;
- if rec.backlink != blname then
- update PLine set backlink = blname where slotname = myname;
- end if;
- return 0;
- end if;
- raise exception ''illegal backlink beginning with %'', mytype;
- end;
- ' language 'plpgsql';
- -- ************************************************************
- -- * Support function to clear out the backlink field if
- -- * it still points to specific slot
- -- ************************************************************
- create function tg_backlink_unset(bpchar, bpchar)
- returns integer as '
- declare
- myname alias for $1;
- blname alias for $2;
- mytype char(2);
- rec record;
- begin
- mytype := substr(myname, 1, 2);
- if mytype = ''PS'' then
- select into rec * from PSlot where slotname = myname;
- if not found then
- return 0;
- end if;
- if rec.backlink = blname then
- update PSlot set backlink = '''' where slotname = myname;
- end if;
- return 0;
- end if;
- if mytype = ''WS'' then
- select into rec * from WSlot where slotname = myname;
- if not found then
- return 0;
- end if;
- if rec.backlink = blname then
- update WSlot set backlink = '''' where slotname = myname;
- end if;
- return 0;
- end if;
- if mytype = ''PL'' then
- select into rec * from PLine where slotname = myname;
- if not found then
- return 0;
- end if;
- if rec.backlink = blname then
- update PLine set backlink = '''' where slotname = myname;
- end if;
- return 0;
- end if;
- end;
- ' language 'plpgsql';
- -- ************************************************************
- -- * AFTER INSERT or UPDATE or DELETE on slot with slotlink
- -- * - Ensure that the opponent correctly points back to us
- -- ************************************************************
- create function tg_slotlink_a() returns opaque as '
- declare
- dummy integer;
- begin
- if tg_op = ''INSERT'' then
- if new.slotlink != '''' then
- dummy := tg_slotlink_set(new.slotlink, new.slotname);
- end if;
- return new;
- end if;
- if tg_op = ''UPDATE'' then
- if new.slotlink != old.slotlink then
- if old.slotlink != '''' then
- dummy := tg_slotlink_unset(old.slotlink, old.slotname);
- end if;
- if new.slotlink != '''' then
- dummy := tg_slotlink_set(new.slotlink, new.slotname);
- end if;
- else
- if new.slotname != old.slotname and new.slotlink != '''' then
- dummy := tg_slotlink_set(new.slotlink, new.slotname);
- end if;
- end if;
- return new;
- end if;
- if tg_op = ''DELETE'' then
- if old.slotlink != '''' then
- dummy := tg_slotlink_unset(old.slotlink, old.slotname);
- end if;
- return old;
- end if;
- end;
- ' language 'plpgsql';
- create trigger tg_slotlink_a after insert or update or delete
- on PSlot for each row execute procedure tg_slotlink_a('PS');
- create trigger tg_slotlink_a after insert or update or delete
- on WSlot for each row execute procedure tg_slotlink_a('WS');
- create trigger tg_slotlink_a after insert or update or delete
- on IFace for each row execute procedure tg_slotlink_a('IF');
- create trigger tg_slotlink_a after insert or update or delete
- on HSlot for each row execute procedure tg_slotlink_a('HS');
- create trigger tg_slotlink_a after insert or update or delete
- on PHone for each row execute procedure tg_slotlink_a('PH');
- -- ************************************************************
- -- * Support function to set the opponents slotlink field
- -- * if it does not already point to the requested slot
- -- ************************************************************
- create function tg_slotlink_set(bpchar, bpchar)
- returns integer as '
- declare
- myname alias for $1;
- blname alias for $2;
- mytype char(2);
- link char(4);
- rec record;
- begin
- mytype := substr(myname, 1, 2);
- link := mytype || substr(blname, 1, 2);
- if link = ''PHPH'' then
- raise exception
- ''slotlink between two phones does not make sense'';
- end if;
- if link in (''PHHS'', ''HSPH'') then
- raise exception
- ''link of phone to hub does not make sense'';
- end if;
- if link in (''PHIF'', ''IFPH'') then
- raise exception
- ''link of phone to hub does not make sense'';
- end if;
- if link in (''PSWS'', ''WSPS'') then
- raise exception
- ''slotlink from patchslot to wallslot not permitted'';
- end if;
- if mytype = ''PS'' then
- select into rec * from PSlot where slotname = myname;
- if not found then
- raise exception ''% does not exists'', myname;
- end if;
- if rec.slotlink != blname then
- update PSlot set slotlink = blname where slotname = myname;
- end if;
- return 0;
- end if;
- if mytype = ''WS'' then
- select into rec * from WSlot where slotname = myname;
- if not found then
- raise exception ''% does not exists'', myname;
- end if;
- if rec.slotlink != blname then
- update WSlot set slotlink = blname where slotname = myname;
- end if;
- return 0;
- end if;
- if mytype = ''IF'' then
- select into rec * from IFace where slotname = myname;
- if not found then
- raise exception ''% does not exists'', myname;
- end if;
- if rec.slotlink != blname then
- update IFace set slotlink = blname where slotname = myname;
- end if;
- return 0;
- end if;
- if mytype = ''HS'' then
- select into rec * from HSlot where slotname = myname;
- if not found then
- raise exception ''% does not exists'', myname;
- end if;
- if rec.slotlink != blname then
- update HSlot set slotlink = blname where slotname = myname;
- end if;
- return 0;
- end if;
- if mytype = ''PH'' then
- select into rec * from PHone where slotname = myname;
- if not found then
- raise exception ''% does not exists'', myname;
- end if;
- if rec.slotlink != blname then
- update PHone set slotlink = blname where slotname = myname;
- end if;
- return 0;
- end if;
- raise exception ''illegal slotlink beginning with %'', mytype;
- end;
- ' language 'plpgsql';
- -- ************************************************************
- -- * Support function to clear out the slotlink field if
- -- * it still points to specific slot
- -- ************************************************************
- create function tg_slotlink_unset(bpchar, bpchar)
- returns integer as '
- declare
- myname alias for $1;
- blname alias for $2;
- mytype char(2);
- rec record;
- begin
- mytype := substr(myname, 1, 2);
- if mytype = ''PS'' then
- select into rec * from PSlot where slotname = myname;
- if not found then
- return 0;
- end if;
- if rec.slotlink = blname then
- update PSlot set slotlink = '''' where slotname = myname;
- end if;
- return 0;
- end if;
- if mytype = ''WS'' then
- select into rec * from WSlot where slotname = myname;
- if not found then
- return 0;
- end if;
- if rec.slotlink = blname then
- update WSlot set slotlink = '''' where slotname = myname;
- end if;
- return 0;
- end if;
- if mytype = ''IF'' then
- select into rec * from IFace where slotname = myname;
- if not found then
- return 0;
- end if;
- if rec.slotlink = blname then
- update IFace set slotlink = '''' where slotname = myname;
- end if;
- return 0;
- end if;
- if mytype = ''HS'' then
- select into rec * from HSlot where slotname = myname;
- if not found then
- return 0;
- end if;
- if rec.slotlink = blname then
- update HSlot set slotlink = '''' where slotname = myname;
- end if;
- return 0;
- end if;
- if mytype = ''PH'' then
- select into rec * from PHone where slotname = myname;
- if not found then
- return 0;
- end if;
- if rec.slotlink = blname then
- update PHone set slotlink = '''' where slotname = myname;
- end if;
- return 0;
- end if;
- end;
- ' language 'plpgsql';
- -- ************************************************************
- -- * Describe the backside of a patchfield slot
- -- ************************************************************
- create function pslot_backlink_view(bpchar)
- returns text as '
- <<outer>>
- declare
- rec record;
- bltype char(2);
- retval text;
- begin
- select into rec * from PSlot where slotname = $1;
- if not found then
- return '''';
- end if;
- if rec.backlink = '''' then
- return ''-'';
- end if;
- bltype := substr(rec.backlink, 1, 2);
- if bltype = ''PL'' then
- declare
- rec record;
- begin
- select into rec * from PLine where slotname = outer.rec.backlink;
- retval := ''Phone line '' || trim(rec.phonenumber);
- if rec.comment != '''' then
- retval := retval || '' ('';
- retval := retval || rec.comment;
- retval := retval || '')'';
- end if;
- return retval;
- end;
- end if;
- if bltype = ''WS'' then
- select into rec * from WSlot where slotname = rec.backlink;
- retval := trim(rec.slotname) || '' in room '';
- retval := retval || trim(rec.roomno);
- retval := retval || '' -> '';
- return retval || wslot_slotlink_view(rec.slotname);
- end if;
- return rec.backlink;
- end;
- ' language 'plpgsql';
- -- ************************************************************
- -- * Describe the front of a patchfield slot
- -- ************************************************************
- create function pslot_slotlink_view(bpchar)
- returns text as '
- declare
- psrec record;
- sltype char(2);
- retval text;
- begin
- select into psrec * from PSlot where slotname = $1;
- if not found then
- return '''';
- end if;
- if psrec.slotlink = '''' then
- return ''-'';
- end if;
- sltype := substr(psrec.slotlink, 1, 2);
- if sltype = ''PS'' then
- retval := trim(psrec.slotlink) || '' -> '';
- return retval || pslot_backlink_view(psrec.slotlink);
- end if;
- if sltype = ''HS'' then
- retval := comment from Hub H, HSlot HS
- where HS.slotname = psrec.slotlink
- and H.name = HS.hubname;
- retval := retval || '' slot '';
- retval := retval || slotno::text from HSlot
- where slotname = psrec.slotlink;
- return retval;
- end if;
- return psrec.slotlink;
- end;
- ' language 'plpgsql';
- -- ************************************************************
- -- * Describe the front of a wall connector slot
- -- ************************************************************
- create function wslot_slotlink_view(bpchar)
- returns text as '
- declare
- rec record;
- sltype char(2);
- retval text;
- begin
- select into rec * from WSlot where slotname = $1;
- if not found then
- return '''';
- end if;
- if rec.slotlink = '''' then
- return ''-'';
- end if;
- sltype := substr(rec.slotlink, 1, 2);
- if sltype = ''PH'' then
- select into rec * from PHone where slotname = rec.slotlink;
- retval := ''Phone '' || trim(rec.slotname);
- if rec.comment != '''' then
- retval := retval || '' ('';
- retval := retval || rec.comment;
- retval := retval || '')'';
- end if;
- return retval;
- end if;
- if sltype = ''IF'' then
- declare
- syrow System%RowType;
- ifrow IFace%ROWTYPE;
- begin
- select into ifrow * from IFace where slotname = rec.slotlink;
- select into syrow * from System where name = ifrow.sysname;
- retval := syrow.name || '' IF '';
- retval := retval || ifrow.ifname;
- if syrow.comment != '''' then
- retval := retval || '' ('';
- retval := retval || syrow.comment;
- retval := retval || '')'';
- end if;
- return retval;
- end;
- end if;
- return rec.slotlink;
- end;
- ' language 'plpgsql';
- -- ************************************************************
- -- * View of a patchfield describing backside and patches
- -- ************************************************************
- create view Pfield_v1 as select PF.pfname, PF.slotname,
- pslot_backlink_view(PF.slotname) as backside,
- pslot_slotlink_view(PF.slotname) as patch
- from PSlot PF;
- --
- -- First we build the house - so we create the rooms
- --
- insert into Room values ('001', 'Entrance');
- insert into Room values ('002', 'Office');
- insert into Room values ('003', 'Office');
- insert into Room values ('004', 'Technical');
- insert into Room values ('101', 'Office');
- insert into Room values ('102', 'Conference');
- insert into Room values ('103', 'Restroom');
- insert into Room values ('104', 'Technical');
- insert into Room values ('105', 'Office');
- insert into Room values ('106', 'Office');
- --
- -- Second we install the wall connectors
- --
- insert into WSlot values ('WS.001.1a', '001', '', '');
- insert into WSlot values ('WS.001.1b', '001', '', '');
- insert into WSlot values ('WS.001.2a', '001', '', '');
- insert into WSlot values ('WS.001.2b', '001', '', '');
- insert into WSlot values ('WS.001.3a', '001', '', '');
- insert into WSlot values ('WS.001.3b', '001', '', '');
- insert into WSlot values ('WS.002.1a', '002', '', '');
- insert into WSlot values ('WS.002.1b', '002', '', '');
- insert into WSlot values ('WS.002.2a', '002', '', '');
- insert into WSlot values ('WS.002.2b', '002', '', '');
- insert into WSlot values ('WS.002.3a', '002', '', '');
- insert into WSlot values ('WS.002.3b', '002', '', '');
- insert into WSlot values ('WS.003.1a', '003', '', '');
- insert into WSlot values ('WS.003.1b', '003', '', '');
- insert into WSlot values ('WS.003.2a', '003', '', '');
- insert into WSlot values ('WS.003.2b', '003', '', '');
- insert into WSlot values ('WS.003.3a', '003', '', '');
- insert into WSlot values ('WS.003.3b', '003', '', '');
- insert into WSlot values ('WS.101.1a', '101', '', '');
- insert into WSlot values ('WS.101.1b', '101', '', '');
- insert into WSlot values ('WS.101.2a', '101', '', '');
- insert into WSlot values ('WS.101.2b', '101', '', '');
- insert into WSlot values ('WS.101.3a', '101', '', '');
- insert into WSlot values ('WS.101.3b', '101', '', '');
- insert into WSlot values ('WS.102.1a', '102', '', '');
- insert into WSlot values ('WS.102.1b', '102', '', '');
- insert into WSlot values ('WS.102.2a', '102', '', '');
- insert into WSlot values ('WS.102.2b', '102', '', '');
- insert into WSlot values ('WS.102.3a', '102', '', '');
- insert into WSlot values ('WS.102.3b', '102', '', '');
- insert into WSlot values ('WS.105.1a', '105', '', '');
- insert into WSlot values ('WS.105.1b', '105', '', '');
- insert into WSlot values ('WS.105.2a', '105', '', '');
- insert into WSlot values ('WS.105.2b', '105', '', '');
- insert into WSlot values ('WS.105.3a', '105', '', '');
- insert into WSlot values ('WS.105.3b', '105', '', '');
- insert into WSlot values ('WS.106.1a', '106', '', '');
- insert into WSlot values ('WS.106.1b', '106', '', '');
- insert into WSlot values ('WS.106.2a', '106', '', '');
- insert into WSlot values ('WS.106.2b', '106', '', '');
- insert into WSlot values ('WS.106.3a', '106', '', '');
- insert into WSlot values ('WS.106.3b', '106', '', '');
- --
- -- Now create the patch fields and their slots
- --
- insert into PField values ('PF0_1', 'Wallslots basement');
- --
- -- The cables for these will be made later, so they are unconnected for now
- --
- insert into PSlot values ('PS.base.a1', 'PF0_1', '', '');
- insert into PSlot values ('PS.base.a2', 'PF0_1', '', '');
- insert into PSlot values ('PS.base.a3', 'PF0_1', '', '');
- insert into PSlot values ('PS.base.a4', 'PF0_1', '', '');
- insert into PSlot values ('PS.base.a5', 'PF0_1', '', '');
- insert into PSlot values ('PS.base.a6', 'PF0_1', '', '');
- --
- -- These are already wired to the wall connectors
- --
- insert into PSlot values ('PS.base.b1', 'PF0_1', '', 'WS.002.1a');
- insert into PSlot values ('PS.base.b2', 'PF0_1', '', 'WS.002.1b');
- insert into PSlot values ('PS.base.b3', 'PF0_1', '', 'WS.002.2a');
- insert into PSlot values ('PS.base.b4', 'PF0_1', '', 'WS.002.2b');
- insert into PSlot values ('PS.base.b5', 'PF0_1', '', 'WS.002.3a');
- insert into PSlot values ('PS.base.b6', 'PF0_1', '', 'WS.002.3b');
- insert into PSlot values ('PS.base.c1', 'PF0_1', '', 'WS.003.1a');
- insert into PSlot values ('PS.base.c2', 'PF0_1', '', 'WS.003.1b');
- insert into PSlot values ('PS.base.c3', 'PF0_1', '', 'WS.003.2a');
- insert into PSlot values ('PS.base.c4', 'PF0_1', '', 'WS.003.2b');
- insert into PSlot values ('PS.base.c5', 'PF0_1', '', 'WS.003.3a');
- insert into PSlot values ('PS.base.c6', 'PF0_1', '', 'WS.003.3b');
- --
- -- This patchfield will be renamed later into PF0_2 - so its
- -- slots references in pfname should follow
- --
- insert into PField values ('PF0_X', 'Phonelines basement');
- insert into PSlot values ('PS.base.ta1', 'PF0_X', '', '');
- insert into PSlot values ('PS.base.ta2', 'PF0_X', '', '');
- insert into PSlot values ('PS.base.ta3', 'PF0_X', '', '');
- insert into PSlot values ('PS.base.ta4', 'PF0_X', '', '');
- insert into PSlot values ('PS.base.ta5', 'PF0_X', '', '');
- insert into PSlot values ('PS.base.ta6', 'PF0_X', '', '');
- insert into PSlot values ('PS.base.tb1', 'PF0_X', '', '');
- insert into PSlot values ('PS.base.tb2', 'PF0_X', '', '');
- insert into PSlot values ('PS.base.tb3', 'PF0_X', '', '');
- insert into PSlot values ('PS.base.tb4', 'PF0_X', '', '');
- insert into PSlot values ('PS.base.tb5', 'PF0_X', '', '');
- insert into PSlot values ('PS.base.tb6', 'PF0_X', '', '');
- insert into PField values ('PF1_1', 'Wallslots 1st floor');
- insert into PSlot values ('PS.1st.a1', 'PF1_1', '', 'WS.101.1a');
- insert into PSlot values ('PS.1st.a2', 'PF1_1', '', 'WS.101.1b');
- insert into PSlot values ('PS.1st.a3', 'PF1_1', '', 'WS.101.2a');
- insert into PSlot values ('PS.1st.a4', 'PF1_1', '', 'WS.101.2b');
- insert into PSlot values ('PS.1st.a5', 'PF1_1', '', 'WS.101.3a');
- insert into PSlot values ('PS.1st.a6', 'PF1_1', '', 'WS.101.3b');
- insert into PSlot values ('PS.1st.b1', 'PF1_1', '', 'WS.102.1a');
- insert into PSlot values ('PS.1st.b2', 'PF1_1', '', 'WS.102.1b');
- insert into PSlot values ('PS.1st.b3', 'PF1_1', '', 'WS.102.2a');
- insert into PSlot values ('PS.1st.b4', 'PF1_1', '', 'WS.102.2b');
- insert into PSlot values ('PS.1st.b5', 'PF1_1', '', 'WS.102.3a');
- insert into PSlot values ('PS.1st.b6', 'PF1_1', '', 'WS.102.3b');
- insert into PSlot values ('PS.1st.c1', 'PF1_1', '', 'WS.105.1a');
- insert into PSlot values ('PS.1st.c2', 'PF1_1', '', 'WS.105.1b');
- insert into PSlot values ('PS.1st.c3', 'PF1_1', '', 'WS.105.2a');
- insert into PSlot values ('PS.1st.c4', 'PF1_1', '', 'WS.105.2b');
- insert into PSlot values ('PS.1st.c5', 'PF1_1', '', 'WS.105.3a');
- insert into PSlot values ('PS.1st.c6', 'PF1_1', '', 'WS.105.3b');
- insert into PSlot values ('PS.1st.d1', 'PF1_1', '', 'WS.106.1a');
- insert into PSlot values ('PS.1st.d2', 'PF1_1', '', 'WS.106.1b');
- insert into PSlot values ('PS.1st.d3', 'PF1_1', '', 'WS.106.2a');
- insert into PSlot values ('PS.1st.d4', 'PF1_1', '', 'WS.106.2b');
- insert into PSlot values ('PS.1st.d5', 'PF1_1', '', 'WS.106.3a');
- insert into PSlot values ('PS.1st.d6', 'PF1_1', '', 'WS.106.3b');
- --
- -- Now we wire the wall connectors 1a-2a in room 001 to the
- -- patchfield. In the second update we make an error, and
- -- correct it after
- --
- update PSlot set backlink = 'WS.001.1a' where slotname = 'PS.base.a1';
- update PSlot set backlink = 'WS.001.1b' where slotname = 'PS.base.a3';
- select * from WSlot where roomno = '001' order by slotname;
- select * from PSlot where slotname ~ 'PS.base.a' order by slotname;
- update PSlot set backlink = 'WS.001.2a' where slotname = 'PS.base.a3';
- select * from WSlot where roomno = '001' order by slotname;
- select * from PSlot where slotname ~ 'PS.base.a' order by slotname;
- update PSlot set backlink = 'WS.001.1b' where slotname = 'PS.base.a2';
- select * from WSlot where roomno = '001' order by slotname;
- select * from PSlot where slotname ~ 'PS.base.a' order by slotname;
- --
- -- Same procedure for 2b-3b but this time updating the WSlot instead
- -- of the PSlot. Due to the triggers the result is the same:
- -- WSlot and corresponding PSlot point to each other.
- --
- update WSlot set backlink = 'PS.base.a4' where slotname = 'WS.001.2b';
- update WSlot set backlink = 'PS.base.a6' where slotname = 'WS.001.3a';
- select * from WSlot where roomno = '001' order by slotname;
- select * from PSlot where slotname ~ 'PS.base.a' order by slotname;
- update WSlot set backlink = 'PS.base.a6' where slotname = 'WS.001.3b';
- select * from WSlot where roomno = '001' order by slotname;
- select * from PSlot where slotname ~ 'PS.base.a' order by slotname;
- update WSlot set backlink = 'PS.base.a5' where slotname = 'WS.001.3a';
- select * from WSlot where roomno = '001' order by slotname;
- select * from PSlot where slotname ~ 'PS.base.a' order by slotname;
- insert into PField values ('PF1_2', 'Phonelines 1st floor');
- insert into PSlot values ('PS.1st.ta1', 'PF1_2', '', '');
- insert into PSlot values ('PS.1st.ta2', 'PF1_2', '', '');
- insert into PSlot values ('PS.1st.ta3', 'PF1_2', '', '');
- insert into PSlot values ('PS.1st.ta4', 'PF1_2', '', '');
- insert into PSlot values ('PS.1st.ta5', 'PF1_2', '', '');
- insert into PSlot values ('PS.1st.ta6', 'PF1_2', '', '');
- insert into PSlot values ('PS.1st.tb1', 'PF1_2', '', '');
- insert into PSlot values ('PS.1st.tb2', 'PF1_2', '', '');
- insert into PSlot values ('PS.1st.tb3', 'PF1_2', '', '');
- insert into PSlot values ('PS.1st.tb4', 'PF1_2', '', '');
- insert into PSlot values ('PS.1st.tb5', 'PF1_2', '', '');
- insert into PSlot values ('PS.1st.tb6', 'PF1_2', '', '');
- --
- -- Fix the wrong name for patchfield PF0_2
- --
- update PField set name = 'PF0_2' where name = 'PF0_X';
- select * from PSlot order by slotname;
- select * from WSlot order by slotname;
- --
- -- Install the central phone system and create the phone numbers.
- -- They are weired on insert to the patchfields. Again the
- -- triggers automatically tell the PSlots to update their
- -- backlink field.
- --
- insert into PLine values ('PL.001', '-0', 'Central call', 'PS.base.ta1');
- insert into PLine values ('PL.002', '-101', '', 'PS.base.ta2');
- insert into PLine values ('PL.003', '-102', '', 'PS.base.ta3');
- insert into PLine values ('PL.004', '-103', '', 'PS.base.ta5');
- insert into PLine values ('PL.005', '-104', '', 'PS.base.ta6');
- insert into PLine values ('PL.006', '-106', '', 'PS.base.tb2');
- insert into PLine values ('PL.007', '-108', '', 'PS.base.tb3');
- insert into PLine values ('PL.008', '-109', '', 'PS.base.tb4');
- insert into PLine values ('PL.009', '-121', '', 'PS.base.tb5');
- insert into PLine values ('PL.010', '-122', '', 'PS.base.tb6');
- insert into PLine values ('PL.015', '-134', '', 'PS.1st.ta1');
- insert into PLine values ('PL.016', '-137', '', 'PS.1st.ta3');
- insert into PLine values ('PL.017', '-139', '', 'PS.1st.ta4');
- insert into PLine values ('PL.018', '-362', '', 'PS.1st.tb1');
- insert into PLine values ('PL.019', '-363', '', 'PS.1st.tb2');
- insert into PLine values ('PL.020', '-364', '', 'PS.1st.tb3');
- insert into PLine values ('PL.021', '-365', '', 'PS.1st.tb5');
- insert into PLine values ('PL.022', '-367', '', 'PS.1st.tb6');
- insert into PLine values ('PL.028', '-501', 'Fax entrance', 'PS.base.ta2');
- insert into PLine values ('PL.029', '-502', 'Fax 1st floor', 'PS.1st.ta1');
- --
- -- Buy some phones, plug them into the wall and patch the
- -- phone lines to the corresponding patchfield slots.
- --
- insert into PHone values ('PH.hc001', 'Hicom standard', 'WS.001.1a');
- update PSlot set slotlink = 'PS.base.ta1' where slotname = 'PS.base.a1';
- insert into PHone values ('PH.hc002', 'Hicom standard', 'WS.002.1a');
- update PSlot set slotlink = 'PS.base.ta5' where slotname = 'PS.base.b1';
- insert into PHone values ('PH.hc003', 'Hicom standard', 'WS.002.2a');
- update PSlot set slotlink = 'PS.base.tb2' where slotname = 'PS.base.b3';
- insert into PHone values ('PH.fax001', 'Canon fax', 'WS.001.2a');
- update PSlot set slotlink = 'PS.base.ta2' where slotname = 'PS.base.a3';
- --
- -- Install a hub at one of the patchfields, plug a computers
- -- ethernet interface into the wall and patch it to the hub.
- --
- insert into Hub values ('base.hub1', 'Patchfield PF0_1 hub', 16);
- insert into System values ('orion', 'PC');
- insert into IFace values ('IF', 'orion', 'eth0', 'WS.002.1b');
- update PSlot set slotlink = 'HS.base.hub1.1' where slotname = 'PS.base.b2';
- --
- -- Now we take a look at the patchfield
- --
- select * from PField_v1 where pfname = 'PF0_1' order by slotname;
- select * from PField_v1 where pfname = 'PF0_2' order by slotname;
- --
- -- Finally we want errors
- --
- insert into PField values ('PF1_1', 'should fail due to unique index');
- update PSlot set backlink = 'WS.not.there' where slotname = 'PS.base.a1';
- update PSlot set backlink = 'XX.illegal' where slotname = 'PS.base.a1';
- update PSlot set slotlink = 'PS.not.there' where slotname = 'PS.base.a1';
- update PSlot set slotlink = 'XX.illegal' where slotname = 'PS.base.a1';
- insert into HSlot values ('HS', 'base.hub1', 1, '');
- insert into HSlot values ('HS', 'base.hub1', 20, '');
- delete from HSlot;
- insert into IFace values ('IF', 'notthere', 'eth0', '');
- insert into IFace values ('IF', 'orion', 'ethernet_interface_name_too_long', '');