2 * Copyright (C) 2009 Equinox Software, Inc.
3 * Mike Rylander <miker@esilibrary.com>
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
17 DROP SCHEMA IF EXISTS action_trigger CASCADE;
21 CREATE SCHEMA action_trigger;
23 CREATE TABLE action_trigger.hook (
25 core_type TEXT NOT NULL,
27 passive BOOL NOT NULL DEFAULT FALSE
29 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('checkout','circ','Item checked out to user');
30 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('checkin','circ','Item checked in');
31 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('lost','circ','Circulating Item marked Lost');
32 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('lost.found','circ','Lost Circulating Item checked in');
33 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('lost.auto','circ','Circulating Item automatically marked lost');
34 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('claims_returned','circ','Circulating Item marked Claims Returned');
35 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('claims_returned.found','circ','Claims Returned Circulating Item is checked in');
36 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('missing','acp','Item marked Missing');
37 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('missing.found','acp','Missing Item checked in');
38 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('transit.start','acp','An Item is placed into transit');
39 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('transit.finish','acp','An Item is received from a transit');
40 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('hold_request.success','ahr','A hold is successfully placed');
41 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('hold_request.failure','ahr','A hold is attempted but not successfully placed');
42 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('hold.capture','ahr','A targeted Item is captured for a hold');
43 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('hold.available','ahr','A held item is ready for pickup');
44 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('hold_transit.start','ahtc','A hold-captured Item is placed into transit');
45 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('hold_transit.finish','ahtc','A hold-captured Item is received from a transit');
46 INSERT INTO action_trigger.hook (key,core_type,description,passive) VALUES ('checkout.due','circ','Checked out Item is Due',TRUE);
47 INSERT INTO action_trigger.hook (key,core_type,description,passive) VALUES ('penalty.PATRON_EXCEEDS_FINES','ausp','Patron has exceeded allowed fines',TRUE);
48 INSERT INTO action_trigger.hook (key,core_type,description,passive) VALUES ('penalty.PATRON_EXCEEDS_OVERDUE_COUNT','ausp','Patron has exceeded allowed overdue count',TRUE);
49 INSERT INTO action_trigger.hook (key,core_type,description,passive) VALUES ('penalty.PATRON_EXCEEDS_CHECKOUT_COUNT','ausp','Patron has exceeded allowed checkout count',TRUE);
50 INSERT INTO action_trigger.hook (key,core_type,description,passive) VALUES ('penalty.PATRON_EXCEEDS_COLLECTIONS_WARNING','ausp','Patron has exceeded maximum fine amount for collections department warning',TRUE);
51 INSERT INTO action_trigger.hook (key,core_type,description,passive) VALUES ('acqpo.activated','acqpo','Purchase order was activated',FALSE);
52 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('format.po.html','acqpo','Formats a Purchase Order as an HTML document');
53 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('format.po.pdf','acqpo','Formats a Purchase Order as a PDF document');
54 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('damaged','acp','Item marked damaged');
55 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('checkout.damaged','circ','A circulating item is marked damaged and the patron is fined');
56 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('renewal','circ','Item renewed to user');
57 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('checkout.due.emergency_closing','aecc','Circulation due date was adjusted by the Emergency Closing handler');
58 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('hold.shelf_expire.emergency_closing','aech','Hold shelf expire time was adjusted by the Emergency Closing handler');
59 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('booking.due.emergency_closing','aecr','Booking reservation return date was adjusted by the Emergency Closing handler');
60 INSERT INTO action_trigger.hook (key,core_type,description) VALUES ('bre.edit','bre','A bib record was edited');
61 INSERT INTO action_trigger.hook (key, core_type, description) VALUES ('au.email.test', 'au', 'A test email has been requested for this user');
62 INSERT INTO action_trigger.hook (key, core_type, description) VALUES ('au.sms_text.test', 'au', 'A test SMS has been requested for this user');
64 -- and much more, I'm sure
66 -- Specialized collection modules. Given an FM object, gather some info and return a scalar or ref.
67 CREATE TABLE action_trigger.collector (
68 module TEXT PRIMARY KEY, -- All live under the OpenILS::Trigger::Collector:: namespace
71 INSERT INTO action_trigger.collector (module,description) VALUES ('fourty_two','Returns the answer to life, the universe and everything');
72 --INSERT INTO action_trigger.collector (module,description) VALUES ('CircCountsByCircMod','Count of Circulations for a User, broken down by circulation modifier');
74 -- Simple tests on an FM object from hook.core_type to test for "should we still do this."
75 CREATE TABLE action_trigger.validator (
76 module TEXT PRIMARY KEY, -- All live under the OpenILS::Trigger::Validator:: namespace
79 INSERT INTO action_trigger.validator (module,description) VALUES ('fourty_two','Returns the answer to life, the universe and everything');
80 INSERT INTO action_trigger.validator (module,description) VALUES ('NOOP_True','Always returns true -- validation always passes');
81 INSERT INTO action_trigger.validator (module,description) VALUES ('NOOP_False','Always returns false -- validation always fails');
82 INSERT INTO action_trigger.validator (module,description) VALUES ('CircIsOpen','Check that the circulation is still open');
83 INSERT INTO action_trigger.validator (module,description) VALUES ('HoldIsAvailable','Check that an item is on the hold shelf');
84 INSERT INTO action_trigger.validator (module,description) VALUES ('CircIsOverdue','Check that the circulation is overdue');
85 INSERT INTO action_trigger.validator (module,description) VALUES ('MaxPassiveDelayAge','Check that the event is not too far past the delay_field time -- requires a max_delay_age interval parameter');
86 INSERT INTO action_trigger.validator (module,description) VALUES ('MinPassiveTargetAge','Check that the target is old enough to be used by this event -- requires a min_target_age interval parameter, and accepts an optional target_age_field to specify what time to use for offsetting');
88 -- After an event passes validation (action_trigger.validator), the reactor processes it.
89 CREATE TABLE action_trigger.reactor (
90 module TEXT PRIMARY KEY, -- All live under the OpenILS::Trigger::Reactor:: namespace
94 INSERT INTO action_trigger.reactor (module,description) VALUES
98 'Returns the answer to life, the universe and everything',
103 INSERT INTO action_trigger.reactor (module,description) VALUES
107 'Always returns true -- reaction always passes',
112 INSERT INTO action_trigger.reactor (module,description) VALUES
116 'Always returns false -- reaction always fails',
121 INSERT INTO action_trigger.reactor (module,description) VALUES
125 'Send an email based on a user-defined template',
131 -- TODO: build a PDF generator
132 --INSERT INTO action_trigger.reactor (module,description) VALUES
133 --( 'GenerateBatchOverduePDF',
134 -- oils_i18n_gettext(
135 -- 'GenerateBatchOverduePDF',
136 -- 'Output a batch PDF of overdue notices for printing',
142 INSERT INTO action_trigger.reactor (module,description) VALUES
146 'Marks a circulation and associated item as lost',
151 INSERT INTO action_trigger.reactor (module,description) VALUES
155 'Applies a billing with a pre-defined amount to a circulation',
160 INSERT INTO action_trigger.reactor (module,description) VALUES
164 'Processes the configured template',
170 -- After an event is reacted to (either success or failure) a cleanup module is run against the resulting environment
171 CREATE TABLE action_trigger.cleanup (
172 module TEXT PRIMARY KEY, -- All live under the OpenILS::Trigger::Cleanup:: namespace
175 INSERT INTO action_trigger.cleanup (module,description) VALUES ('fourty_two','Returns the answer to life, the universe and everything');
176 INSERT INTO action_trigger.cleanup (module,description) VALUES ('NOOP_True','Always returns true -- cleanup always passes');
177 INSERT INTO action_trigger.cleanup (module,description) VALUES ('NOOP_False','Always returns false -- cleanup always fails');
178 INSERT INTO action_trigger.cleanup (module,description) VALUES ('ClearAllPending','Remove all future, pending notifications for this target');
180 CREATE TABLE action_trigger.event_definition (
181 id SERIAL PRIMARY KEY,
182 active BOOL NOT NULL DEFAULT TRUE,
183 owner INT NOT NULL REFERENCES actor.org_unit (id) DEFERRABLE INITIALLY DEFERRED,
185 hook TEXT NOT NULL REFERENCES action_trigger.hook (key) DEFERRABLE INITIALLY DEFERRED,
186 validator TEXT NOT NULL REFERENCES action_trigger.validator (module) DEFERRABLE INITIALLY DEFERRED,
187 reactor TEXT NOT NULL REFERENCES action_trigger.reactor (module) DEFERRABLE INITIALLY DEFERRED,
188 cleanup_success TEXT REFERENCES action_trigger.cleanup (module) DEFERRABLE INITIALLY DEFERRED,
189 cleanup_failure TEXT REFERENCES action_trigger.cleanup (module) DEFERRABLE INITIALLY DEFERRED,
190 delay INTERVAL NOT NULL DEFAULT '5 minutes',
192 repeat_delay INTERVAL,
194 opt_in_setting TEXT REFERENCES config.usr_setting_type (name) DEFERRABLE INITIALLY DEFERRED,
195 delay_field TEXT, -- for instance, xact_start on a circ hook ... look for fields on hook.core_type where datatype=timestamp? If not set, delay from now()
196 group_field TEXT, -- field from this.hook.core_type to batch event targets together on, fed into reactor a group at a time.
197 template TEXT, -- the TT block. will have an 'environment' hash (or array of hashes, grouped events) built up by validator and collector(s), which can be modified.
198 granularity TEXT, -- could specify a batch which is the only time these events should actually run
200 message_template TEXT,
201 message_usr_path TEXT,
202 message_library_path TEXT,
204 retention_interval INTERVAL,
206 CONSTRAINT ev_def_owner_hook_val_react_clean_delay_once UNIQUE (owner, hook, validator, reactor, delay, delay_field),
207 CONSTRAINT ev_def_name_owner_once UNIQUE (owner, name)
210 CREATE OR REPLACE FUNCTION action_trigger.check_valid_retention_interval()
211 RETURNS TRIGGER AS $_$
214 * 1. Retention intervals are always allowed on active hooks.
215 * 2. On passive hooks, retention intervals are only allowed
216 * when the event definition has a max_delay value and the
217 * retention_interval value is greater than the difference
218 * beteween the delay and max_delay values.
220 PERFORM TRUE FROM action_trigger.hook
221 WHERE key = NEW.hook AND NOT passive;
227 IF NEW.max_delay IS NOT NULL THEN
228 IF EXTRACT(EPOCH FROM NEW.retention_interval) >
229 ABS(EXTRACT(EPOCH FROM (NEW.max_delay - NEW.delay))) THEN
230 RETURN NEW; -- all good
232 RAISE EXCEPTION 'retention_interval is too short';
235 RAISE EXCEPTION 'retention_interval requires max_delay';
238 $_$ LANGUAGE PLPGSQL;
240 CREATE TRIGGER is_valid_retention_interval
241 BEFORE INSERT OR UPDATE ON action_trigger.event_definition
242 FOR EACH ROW WHEN (NEW.retention_interval IS NOT NULL)
243 EXECUTE PROCEDURE action_trigger.check_valid_retention_interval();
245 CREATE TABLE action_trigger.environment (
246 id SERIAL PRIMARY KEY,
247 event_def INT NOT NULL REFERENCES action_trigger.event_definition (id) DEFERRABLE INITIALLY DEFERRED,
248 path TEXT, -- fields to flesh. given a hook with a core_type of circ, imagine circ_lib.parent_ou expanding to
249 -- {flesh: 2, flesh_fields: {circ: ['circ_lib'], aou: ['parent_ou']}} ... default is to flesh all
251 collector TEXT REFERENCES action_trigger.collector (module) DEFERRABLE INITIALLY DEFERRED, -- if set, given the object at 'path', return some data
252 -- to be stashed at environment.<label>
253 label TEXT CHECK (label NOT IN ('result','target','event')),
254 CONSTRAINT env_event_label_once UNIQUE (event_def,label)
257 CREATE TABLE action_trigger.event_output (
258 id BIGSERIAL PRIMARY KEY,
259 create_time TIMESTAMPTZ NOT NULL DEFAULT NOW(),
260 is_error BOOLEAN NOT NULL DEFAULT FALSE,
264 CREATE TABLE action_trigger.event (
265 id BIGSERIAL PRIMARY KEY,
266 target BIGINT NOT NULL, -- points at the id from class defined by event_def.hook.core_type
267 event_def INT REFERENCES action_trigger.event_definition (id) DEFERRABLE INITIALLY DEFERRED,
268 add_time TIMESTAMPTZ NOT NULL DEFAULT NOW(),
269 run_time TIMESTAMPTZ NOT NULL,
270 start_time TIMESTAMPTZ,
271 update_time TIMESTAMPTZ,
272 complete_time TIMESTAMPTZ,
274 state TEXT NOT NULL DEFAULT 'pending' CHECK (state IN ('pending','invalid','found','collecting','collected','validating','valid','reacting','reacted','cleaning','complete','error')),
275 user_data TEXT CHECK (user_data IS NULL OR is_json( user_data )),
276 template_output BIGINT REFERENCES action_trigger.event_output (id),
277 error_output BIGINT REFERENCES action_trigger.event_output (id),
278 async_output BIGINT REFERENCES action_trigger.event_output (id)
280 CREATE INDEX atev_target_def_idx ON action_trigger.event (target,event_def);
281 CREATE INDEX atev_def_state ON action_trigger.event (event_def,state);
282 CREATE INDEX atev_template_output ON action_trigger.event (template_output);
283 CREATE INDEX atev_async_output ON action_trigger.event (async_output);
284 CREATE INDEX atev_error_output ON action_trigger.event (error_output);
286 CREATE TABLE action_trigger.event_params (
287 id BIGSERIAL PRIMARY KEY,
288 event_def INT NOT NULL REFERENCES action_trigger.event_definition (id) DEFERRABLE INITIALLY DEFERRED,
289 param TEXT NOT NULL, -- the key under environment.event.params to store the output of ...
290 value TEXT NOT NULL, -- ... the eval() output of this. Has access to environment (and, well, all of perl)
291 CONSTRAINT event_params_event_def_param_once UNIQUE (event_def,param)
294 CREATE TABLE action_trigger.event_def_group (
295 id SERIAL PRIMARY KEY,
296 owner INT NOT NULL REFERENCES actor.org_unit (id)
297 ON DELETE RESTRICT ON UPDATE CASCADE
298 DEFERRABLE INITIALLY DEFERRED,
299 hook TEXT NOT NULL REFERENCES action_trigger.hook (key)
300 ON DELETE RESTRICT ON UPDATE CASCADE
301 DEFERRABLE INITIALLY DEFERRED,
302 active BOOL NOT NULL DEFAULT TRUE,
305 SELECT SETVAL('action_trigger.event_def_group_id_seq'::TEXT, 100, TRUE);
307 CREATE TABLE action_trigger.event_def_group_member (
308 id SERIAL PRIMARY KEY,
309 grp INT NOT NULL REFERENCES action_trigger.event_def_group (id)
310 ON DELETE CASCADE ON UPDATE CASCADE
311 DEFERRABLE INITIALLY DEFERRED,
312 event_def INT NOT NULL REFERENCES action_trigger.event_definition (id)
313 ON DELETE RESTRICT ON UPDATE CASCADE
314 DEFERRABLE INITIALLY DEFERRED,
315 sortable BOOL NOT NULL DEFAULT TRUE,
316 holdings BOOL NOT NULL DEFAULT FALSE,
317 external BOOL NOT NULL DEFAULT FALSE,
321 CREATE OR REPLACE FUNCTION action_trigger.purge_events() RETURNS VOID AS $_$
323 * Deleting expired events without simultaneously deleting their outputs
324 * creates orphaned outputs. Deleting their outputs and all of the events
325 * linking back to them, plus any outputs those events link to is messy and
326 * inefficient. It's simpler to handle them in 2 sweeping steps.
328 * 1. Delete expired events.
329 * 2. Delete orphaned event outputs.
331 * This has the added benefit of removing outputs that may have been
332 * orphaned by some other process. Such outputs are not usuable by
335 * This does not guarantee that all events within an event group are
336 * purged at the same time. In such cases, the remaining events will
337 * be purged with the next instance of the purge (or soon thereafter).
338 * This is another nod toward efficiency over completeness of old
339 * data that's circling the bit bucket anyway.
343 DELETE FROM action_trigger.event WHERE id IN (
345 FROM action_trigger.event evt
346 JOIN action_trigger.event_definition def ON (def.id = evt.event_def)
347 WHERE def.retention_interval IS NOT NULL
348 AND evt.state <> 'pending'
349 AND evt.update_time < (NOW() - def.retention_interval)
352 WITH linked_outputs AS (
353 SELECT templates.id AS id FROM (
354 SELECT DISTINCT(template_output) AS id
355 FROM action_trigger.event WHERE template_output IS NOT NULL
357 SELECT DISTINCT(error_output) AS id
358 FROM action_trigger.event WHERE error_output IS NOT NULL
360 SELECT DISTINCT(async_output) AS id
361 FROM action_trigger.event WHERE async_output IS NOT NULL
363 ) DELETE FROM action_trigger.event_output
364 WHERE id NOT IN (SELECT id FROM linked_outputs);
367 $_$ LANGUAGE PLPGSQL;