summaryrefslogtreecommitdiff
path: root/docs
diff options
context:
space:
mode:
authorMalcolm Tredinnick <malcolm.tredinnick@gmail.com>2007-06-11 14:51:26 +0000
committerMalcolm Tredinnick <malcolm.tredinnick@gmail.com>2007-06-11 14:51:26 +0000
commit748ea65a6180293c356faa3ff0e754cb1d678d14 (patch)
tree542a590e521cfd639d1903a4968e75edd68e039d /docs
parent0b4122d1387e3c793661c0828278a021364691d4 (diff)
unicode: Merged changes from trunk up to [5460].
git-svn-id: http://code.djangoproject.com/svn/django/branches/unicode@5462 bcc190cf-cafb-0310-a4f2-bffc1f526a37
Diffstat (limited to 'docs')
-rw-r--r--docs/authentication.txt2
-rw-r--r--docs/db-api.txt6
-rw-r--r--docs/man/django-admin.1162
-rw-r--r--docs/model-api.txt5
-rw-r--r--docs/newforms.txt83
5 files changed, 254 insertions, 4 deletions
diff --git a/docs/authentication.txt b/docs/authentication.txt
index 091a30a895..12b61db538 100644
--- a/docs/authentication.txt
+++ b/docs/authentication.txt
@@ -730,7 +730,7 @@ Django developers are currently discussing.
Default permissions
-------------------
-Three basic permissions -- add, create and delete -- are automatically created
+Three basic permissions -- add, change and delete -- are automatically created
for each Django model that has a ``class Admin`` set. Behind the scenes, these
permissions are added to the ``auth_permission`` database table when you run
``manage.py syncdb``.
diff --git a/docs/db-api.txt b/docs/db-api.txt
index cd3a115282..f58dca3f3a 100644
--- a/docs/db-api.txt
+++ b/docs/db-api.txt
@@ -388,7 +388,7 @@ The lookup parameters (``**kwargs``) should be in the format described in
`Field lookups`_ below. Multiple parameters are joined via ``AND`` in the
underlying SQL statement, and the whole thing is enclosed in a ``NOT()``.
-This example excludes all entries whose ``pub_date`` is the current date/time
+This example excludes all entries whose ``pub_date`` is later than 2005-1-3
AND whose ``headline`` is "Hello"::
Entry.objects.exclude(pub_date__gt=datetime.date(2005, 1, 3), headline='Hello')
@@ -398,8 +398,8 @@ In SQL terms, that evaluates to::
SELECT ...
WHERE NOT (pub_date > '2005-1-3' AND headline = 'Hello')
-This example excludes all entries whose ``pub_date`` is the current date/time
-OR whose ``headline`` is "Hello"::
+This example excludes all entries whose ``pub_date`` is later than 2005-1-3
+AND whose headline is NOT "Hello"::
Entry.objects.exclude(pub_date__gt=datetime.date(2005, 1, 3)).exclude(headline='Hello')
diff --git a/docs/man/django-admin.1 b/docs/man/django-admin.1
new file mode 100644
index 0000000000..fec5053ccb
--- /dev/null
+++ b/docs/man/django-admin.1
@@ -0,0 +1,162 @@
+.TH "django-admin.py" "1" "June 2007" "Django Project" ""
+.SH "NAME"
+django\-admin.py \- Utility script for the Django web framework
+.SH "SYNOPSIS"
+.B django\-admin.py
+.I <action>
+.B [options]
+.sp
+.SH "DESCRIPTION"
+This utility script provides commands for creation and maintenance of Django
+projects and apps.
+.sp
+With the exception of
+.BI startproject,
+all commands listed below can also be performed with the
+.BI manage.py
+script found at the top level of each Django project directory.
+.sp
+.SH "ACTIONS"
+.TP
+.BI "adminindex [" "appname ..." "]"
+Prints the admin\-index template snippet for the given app name(s).
+.TP
+.BI "createcachetable [" "tablename" "]"
+Creates the table needed to use the SQL cache backend
+.TP
+.B dbshell
+Runs the command\-line client for the current
+.BI DATABASE_ENGINE.
+.TP
+.B diffsettings
+Displays differences between the current
+.B settings.py
+and Django's default settings. Settings that don't appear in the defaults are
+followed by "###".
+.TP
+.B inspectdb
+Introspects the database tables in the database specified in settings.py and outputs a Django
+model module.
+.TP
+.BI "install [" "appname ..." "]"
+Executes
+.B sqlall
+for the given app(s) in the current database.
+.TP
+.BI "reset [" "appname ..." "]"
+Executes
+.B sqlreset
+for the given app(s) in the current database.
+.TP
+.BI "runfcgi [" "KEY=val" "] [" "KEY=val" "] " "..."
+Runs this project as a FastCGI application. Requires flup. Use
+.B runfcgi help
+for help on the KEY=val pairs.
+.TP
+.BI "runserver [" "\-\-noreload" "] [" "\-\-adminmedia=ADMIN_MEDIA_PATH" "] [" "port|ipaddr:port" "]"
+Starts a lightweight Web server for development.
+.TP
+.BI "shell [" "\-\-plain" "]"
+Runs a Python interactive interpreter. Tries to use IPython, if it's available.
+The
+.BI \-\-plain
+option forces the use of the standard Python interpreter even when IPython is
+installed.
+.TP
+.BI "sql [" "appname ..." "]"
+Prints the CREATE TABLE SQL statements for the given app name(s).
+.TP
+.BI "sqlall [" "appname ..." "]"
+Prints the CREATE TABLE, initial\-data and CREATE INDEX SQL statements for the
+given model module name(s).
+.TP
+.BI "sqlclear [" "appname ..." "]"
+Prints the DROP TABLE SQL statements for the given app name(s).
+.TP
+.BI "sqlindexes [" "appname ..." "]"
+Prints the CREATE INDEX SQL statements for the given model module name(s).
+.TP
+.BI "sqlinitialdata [" "appname ..." "]"
+Prints the initial INSERT SQL statements for the given app name(s).
+.TP
+.BI "sqlreset [" "appname ..." "]"
+Prints the DROP TABLE SQL, then the CREATE TABLE SQL, for the given app
+name(s).
+.TP
+.BI "sqlsequencereset [" "appname ..." "]"
+Prints the SQL statements for resetting PostgreSQL sequences for the
+given app name(s).
+.TP
+.BI "startapp [" "appname" "]"
+Creates a Django app directory structure for the given app name in
+the current directory.
+.TP
+.BI "startproject [" "projectname" "]"
+Creates a Django project directory structure for the given project name
+in the current directory.
+.TP
+.BI syncdb
+Creates the database tables for all apps in INSTALLED_APPS whose tables
+haven't already been created.
+.TP
+.BI "test [" "\-\-verbosity" "] [" "appname ..." "]"
+Runs the test suite for the specified applications, or the entire project if
+no apps are specified
+.TP
+.BI validate
+Validates all installed models.
+.SH "OPTIONS"
+.TP
+.I \-\-version
+Show program's version number and exit.
+.TP
+.I \-h, \-\-help
+Show this help message and exit.
+.TP
+.I \-\-settings=SETTINGS
+Python path to settings module, e.g. "myproject.settings.main". If
+this isn't provided, the DJANGO_SETTINGS_MODULE environment variable
+will be used.
+.TP
+.I \-\-pythonpath=PYTHONPATH
+Lets you manually add a directory the Python path,
+e.g. "/home/djangoprojects/myproject".
+.TP
+.I \-\-plain
+Use plain Python, not IPython, for the "shell" command.
+.TP
+.I \-\-noinput
+Do not prompt the user for input.
+.TP
+.I \-\-noreload
+Disable the development server's auto\-reloader.
+.TP
+.I \-\-verbosity=VERBOSITY
+Verbosity level: 0=minimal output, 1=normal output, 2=all output.
+.TP
+.I \-\-adminmedia=ADMIN_MEDIA_PATH
+Specifies the directory from which to serve admin media when using the development server.
+
+.SH "ENVIRONMENT"
+.TP
+.I DJANGO_SETTINGS_MODULE
+In the absence of the
+.BI \-\-settings
+option, this environment variable defines the settings module to be read.
+It should be in Python-import form, e.g. "myproject.settings".
+
+.SH "SEE ALSO"
+Full descriptions of all these options, with examples, as well as documentation
+for the rest of the Django framework, can be found on the Django site:
+.sp
+.I http://www.djangoproject.com/documentation/
+.sp
+or in the distributed documentation.
+.SH "AUTHORS/CREDITS"
+Originally developed at World Online in Lawrence, Kansas, USA. Refer to the
+AUTHORS file in the Django distribution for contributors.
+.sp
+.SH "LICENSE"
+New BSD license. For the full license text refer to the LICENSE file in the
+Django distribution.
+
diff --git a/docs/model-api.txt b/docs/model-api.txt
index 0bba2db0a0..bef923ec33 100644
--- a/docs/model-api.txt
+++ b/docs/model-api.txt
@@ -447,6 +447,11 @@ and doesn't give a 404 response).
The admin represents this as an ``<input type="text">`` (a single-line input).
+``URLField`` takes an optional argument, ``maxlength``, the maximum length (in
+characters) of the field. The maxlength is enforced at the database level and
+in Django's validation. If you don't specify ``maxlength``, a default of 200
+is used.
+
``USStateField``
~~~~~~~~~~~~~~~~
diff --git a/docs/newforms.txt b/docs/newforms.txt
index aef7ffa967..4dc42caff2 100644
--- a/docs/newforms.txt
+++ b/docs/newforms.txt
@@ -303,6 +303,11 @@ is -- e.g., for ``DateField``, it's ``None`` instead of the empty string. For
full details on each field's behavior in this case, see the "Empty value" note
for each field in the "Built-in ``Field`` classes" section below.
+You can write code to perform validation for particular form fields (based on
+their name) or for the form as a whole (considering combinations of various
+fields). More information about this is in the `Custom form and field
+validation`_ section, below.
+
Behavior of unbound forms
~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -1212,6 +1217,84 @@ custom ``Field`` classes. To do this, just create a subclass of
mentioned above (``required``, ``label``, ``initial``, ``widget``,
``help_text``).
+Custom form and field validation
+---------------------------------
+
+Form validation happens when the data is cleaned. If you want to customise
+this process, there are various places you can change, each one serving a
+different purpose. Thee types of cleaning methods are run during form
+processing. These are normally executed when you call the ``is_valid()``
+method on a form. There are other things that can kick of cleaning and
+validation (accessing the ``errors`` attribute or calling ``full_clean()``
+directly), but normally they won't be needed.
+
+In general, any cleaning method can raise ``ValidationError`` if there is a
+problem with the data it is processing, passing the relevant error message to
+the ``ValidationError`` constructor. If no ``ValidationError`` is raised, the
+method should return the cleaned (normalised) data as a Python object.
+
+If you detect multiple errors during a cleaning method and wish to signal all
+of them to the form submittor, it is possible to pass a list of errors to the
+``ValidationError`` constructor.
+
+The three types of cleaning methods are:
+
+ * The ``clean()`` method on a Field subclass. This is responsible
+ for cleaning the data in a way that is generic for that type of field.
+ For example, a FloatField will turn the data into a Python ``float`` or
+ raise a ``ValidationError``.
+
+ * The ``clean_<fieldname>()`` method in a form subclass -- where
+ ``<fieldname>`` is replaced with the name of the form field attribute.
+ This method does any cleaning that is specific to that particular
+ attribute, unrelated to the type of field that it is. This method is not
+ passed any parameters. You will need to look up the value of the field
+ in ``self.cleaned_data`` and remember that it will be a Python object
+ at this point, not the original string submitted in the form (it will be
+ in ``cleaned_data`` because the general field ``clean()`` method, above,
+ has already cleaned the data once).
+
+ For example, if you wanted to validate that the contents of a
+ ``CharField`` called ``serialnumber`` was unique,
+ ``clean_serialnumber()`` would be the right place to do this. You don't
+ need a specific field (it's just a ``CharField``), but you want a
+ formfield-specific piece of validation and, possibly,
+ cleaning/normalizing the data.
+
+ * The Form subclass's ``clean()`` method. This method can perform
+ any validation that requires access to multiple fields from the form at
+ once. This is where you might put in things to check that if field ``A``
+ is supplied, field ``B`` must contain a valid email address and the
+ like. The data that this method returns is the final ``cleaned_data``
+ attribute for the form, so don't forget to return the full list of
+ cleaned data if you override this method (by default, ``Form.clean()``
+ just returns ``self.cleaned_data``).
+
+ Note that any errors raised by your ``Form.clean()`` override will not
+ be associated with any field in particular. They go into a special
+ "field" (called ``__all__``, which you can access via the
+ ``non_field_errors()`` method if you need to.
+
+These methods are run in the order given above, one field at a time. That is,
+for each field in the form (in the order they are declared in the form
+definition), the ``Field.clean()`` method (or it's override) is run, then
+``clean_<fieldname>()``. Finally, once those two methods are run for every
+field, the ``Form.clean()`` method, or it's override, is executed.
+
+As mentioned above, any of these methods can raise a ``ValidationError``. For
+any field, if the ``Field.clean()`` method raises a ``ValidationError``, any
+field-specific cleaning method is not called. However, the cleaning methods
+for all remaining fields are still executed.
+
+The ``clean()`` method for the ``Form`` class or subclass is always run. If
+that method raises a ``ValidationError``, ``cleaned_data`` will be an empty
+dictionary.
+
+The previous paragraph means that if you are overriding ``Form.clean()``, you
+should iterate through ``self.cleaned_data.items()``, possibly considering the
+``_errors`` dictionary attribute on the form as well. In this way, you will
+already know which fields have passed thei individual validation requirements.
+
A simple example
~~~~~~~~~~~~~~~~