Triggers

The trigger module defines two classes, Trigger and TriggerDict, derived from DbSchemaObject and DbObjectDict, respectively.

Trigger

Trigger is derived from DbSchemaObject and represents a Postgres regular or constraint trigger.

class pyrseas.dbobject.trigger.Trigger(name, schema, table, description, procedure, timing, level, events, constraint=False, deferrable=False, initially_deferred=False, referencing_new=None, referencing_old=None, columns=[], condition=None, arguments='', oid=None)

A procedural language trigger

Trigger.identifier()

Returns a full identifier for the trigger

Returns:string

Trigger.to_map(db)

Convert a trigger to a YAML-suitable format

Returns:dictionary

Trigger.create(dbversion=None)

Return SQL statements to CREATE the trigger

Returns:SQL statements

Trigger Dictionary

TriggerDict is derived from DbObjectDict. It is a dictionary that represents the collection of triggers in a database.

class pyrseas.dbobject.trigger.TriggerDict(dbconn=None)

The collection of triggers in a database

TriggerDict.from_map(table, intriggers)

Initialize the dictionary of triggers by converting the input map

Parameters:

• table – table owning the triggers
• intriggers – YAML map defining the triggers