TriggersΒΆ
Triggers allow to define methods of Model
that are
called at the end of the transaction when one of those events happen to a
record:
On Creation
On Modification
On Deletions
On Time: When a condition changes over time.
The method signature is:
<method name>(cls, records, trigger)
Where records
is the list of records that triggered the event and
trigger
is the ir.trigger
instance which is triggered.
Triggers are defined by records of ir.trigger
. Each record must define a
pyson condition which will be evaluated when the event occurs. Only those
records for which the condition is evaluated to true will be processed by the
trigger with the exception of modification triggers which will only process the
records for which the condition is evaluated to false before and evaluated to
true after the modification.