Jifty::View::Declare::CRUD(3pm) User Contributed Perl Documentation Jifty::View::Declare::CRUD(3pm)
NAME
Jifty::View::Declare::CRUD - Provides typical CRUD views to a model
SYNOPSIS
package App::View::User;
use Jifty::View::Declare -base;
use base qw/ Jifty::View::Declare::CRUD /;
template 'view' => sub {
# customize the view
};
1;
package App::View::Tag;
use Jifty::View::Declare -base;
use base qw/ Jifty::View::Declare::CRUD /;
template 'view' => sub {
# customize the view
};
1;
package App::View;
use Jifty::View::Declare -base;
use Jifty::View::Declare::CRUD;
# If you have customizations, this is a good way...
Jifty::View::Declare::CRUD->mount_view('User');
Jifty::View::Declare::CRUD->mount_view('Category', 'App::View::Tag', '/tag');
# Another way to do the above, good for quick and dirty
alias Jifty::View::Declare::CRUD under '/admin/blog', {
object_type => 'BlogPost',
};
DESCRIPTION
This class provides a set of views that may be used by a model to display Create/Read/Update/Delete views using the Template::Declare
templating language.
Basically, you can use this class to do most (and maybe all) of the work you need to manipulate and view your records.
METHODS
mount_view MODELCLASS VIEWCLASS /path
Call this method in your application's view class to add the CRUD views you're looking for. Only the first argument is required.
Arguments:
MODELCLASS
This is the name of the model that you want to generate the CRUD views for. This is the only required parameter. Leave off the parts of
the class name prior to and including the "Model" part. (I.e., "App::Model::User" should be passed as just "User").
VIEWCLASS
This is the name of the class that will be generated to hold the CRUD views of your model. If not given, it will be set to:
"App::View::MODELCLASS". If given, it should be the full name of the view class.
/path
This is the path where you can reach the CRUD views for this model in your browser. If not given, this will be set to the model class
name in lowercase letters. (I.e., "User" would be found at "/user" if not passed explicitly).
object_type
This method returns the type of object this CRUD view has been generated for. This is normally the model class parameter that was passed to
"mount_view".
record_class
This is the full name of the model class these CRUD views are for. The default implementation returns:
Jifty->app_class('Model', $self->object_type);
You will want to override this (in addition to "object_type") if you want to provide CRUD views in a plugin, or from an external model
class, or for one of the Jifty built-in models.
fragment_for
This is a helper that returns the path to a given fragment. The only argument is the name of the fragment. It returns a absolute base path
to the fragment page.
This will attempt to lookup a method named "fragment_for_FRAGMENT", where FRAGMENT is the argument passed. If that method exists, it's
result is used as the returned path.
Otherwise, the "fragment_base_path" is joined to the passed fragment name to create the return value.
If you really want to mess with this, you may need to read the source code of this class.
fragment_base_path
This is a helper for "fragment_for". It looks up the current template using "current_template" in Template::Declare::Tags, finds it's
parent path and then returns that.
If you really want to mess with this, you may need to read the source code of this class.
_get_record $id
Given an $id, returns a record object for the CRUD view's model class.
display_columns [ACTION]
Returns a list of all the column names that this REST view should display. Defaults to all argument names for the provided "ACTION". If
there is no action provided, returns the "record_class"'s "readable_attributes".
edit_columns ACTION
Returns a list of all the columns that this REST view should display for update. Defaults to the "display_columns", without "id".
create_columns ACTION
Returns a list of all of the columns that this REST view should display for create. Defaults to "edit_columns".
render_field mode => $mode, field => $field, action => $action
Renders a particular field in a given mode (read, create, edit). This attempts to dispatch directly to a method with the given field name.
For example, if the subclass has, say, an "edit_field_post" method, then it will be preferred over the generic "edit_field" method.
view_field action => $action_object, field => $field_name
Displays the column as read-only.
create_field action => $action_object, field => $field_name
Displays the column for a create form.
edit_field action => $action_object, field => $field_name
Displays the column for an edit form.
page_title
The title for the CRUD page
TEMPLATES
index.html
Contains the master form and page region containing the list of items. This is mainly a wrapper for the "list" fragment.
search
The search fragment displays a search screen connected to the search action of the module. If your subclass can "search_fields", then that
method will be called and the return value (which should be a list) will be used as a list of fields to render. Otherwise, all the fields
of the Search action are displayed.
See Jifty::Action::Record::Search.
view
This fragment displays the data held by a single model record.
private template view_item_controls
Used by the view fragment to show the edit link for each record.
update
The update fragment displays a form for editing the data held within a single model record.
See Jifty::Action::Record::Update.
edit_item_controls $record $action
The controls we should be rendering in the 'edit' region for a given fragment
list
The list template provides an interactive list for showing a list of records in the record collection, adding new records, deleting
records, and updating records.
per_page
This routine returns how many items should be shown on each page of a listing. The default is 25.
sort_header
Sort by field toolbar
predefined_search
The private template makes use of the "predefined_search" constant, which contains a list of hashref, each defines a collection in the
format:
{ name => 'my_list',
label => "My List",
collection => defer {
# ... construct and return the collection
}
},
{ name => 'my_list2',
label => "My List2",
condition => [
{ column => 'foo' value => 'bar' },
# ... and your other Jifty::DBI::Collection limit args
]
}
search_region
This private template renders a region to show an expandable region for a search widget.
new_item_region
This private template renders a region to show a the "new_item" template.
no_items_found
Prints "No items found."
list_items $collection $item_path
Renders a div of class list with a region per item.
paging_top $collection $page_number
Paging for your list, rendered at the top of the list
paging_bottom $collection $page_number
Paging for your list, rendered at the bottom of the list
create_item $action
Renders the action $Action, handing it the array ref returned by "display_columns".
edit_item $action
Renders the action $Action, handing it the array ref returned by "display_columns".
new_item
The new_item template provides a form for creating new model records. See Jifty::Action::Record::Create.
SEE ALSO
Jifty::Action::Record::Create, Jifty::Action::Record::Search, Jifty::Action::Record::Update, Jifty::Action::Record::Delete,
Template::Declare, Jifty::View::Declare::Helpers, Jifty::View::Declare
LICENSE
Jifty is Copyright 2005-2010 Best Practical Solutions, LLC. Jifty is distributed under the same terms as Perl itself.
perl v5.14.2 2011-03-01 Jifty::View::Declare::CRUD(3pm)