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Fixed #8658: Added cross-references to signals docs from Model.save() docs

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@8755 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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James Bennett 2008-08-31 09:03:18 +00:00
parent 6ba55eee30
commit f2c80f93d9
1 changed files with 8 additions and 7 deletions
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docs/ref/models/instances.txt
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@ -107,10 +107,10 @@ What happens when you save?
When you save an object, Django performs the following steps: When you save an object, Django performs the following steps:
1. **Emit a ``pre_save`` signal.** This provides a notification that 1. **Emit a pre-save signal.** The :ref:`signal <ref-signals>`
an object is about to be saved. You can register a listener that :attr:`django.db.models.signals.pre_save` is sent, allowing any
will be invoked whenever this signal is emitted. (These signals are functions listening for that signal to take some customized
not yet documented.) action.
2. **Pre-process the data.** Each field on the object is asked to 2. **Pre-process the data.** Each field on the object is asked to
perform any automated data modification that the field may need perform any automated data modification that the field may need
@ -140,9 +140,10 @@ When you save an object, Django performs the following steps:
data is then composed into an SQL statement for insertion into the data is then composed into an SQL statement for insertion into the
database. database.
5. **Emit a ``post_save`` signal.** As with the ``pre_save`` signal, this 5. **Emit a post-save signal.** The signal
is used to provide notification that an object has been successfully :attr:`django.db.models.signals.post_save` is sent, allowing
saved. (These signals are not yet documented.) any functions listening for that signal to take some customized
action.
How Django knows to UPDATE vs. INSERT How Django knows to UPDATE vs. INSERT
------------------------------------- -------------------------------------