doc/book/fr/04-develop-views.fr.txt
author Sandrine Ribeau <sandrine.ribeau@logilab.fr>
Tue, 18 Nov 2008 11:51:22 -0800
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.. -*- coding: utf-8 -*-
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Définir l'interface utilisateur avec des vues
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=============================================
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`LAX` provides out-of-the-box a web interface that is generated from
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the schema definition: entities can be created, displayed, updated and
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deleted. As display views are not very fancy, it is usually necessary
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to develop your own.
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With `LAX`, views are defined by Python classes. A view includes :
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- an identifier (all objects in `LAX` are entered in a registry
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  and this identifier will be used as a key)
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- a filter to select the resulsets it can be applied to
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`LAX` provides a lot of standard views, for a complete list, you
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will have to read the code in directory views (XXX improve doc).
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For example, the view named ``primary`` is the one used to display
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a single entity.
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If you want to change the way a ``BlogEntry`` is displayed, just
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override the view ``primary`` in ``BlogDemo/views.py`` ::
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  from ginco.web.views import baseviews
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  class BlogEntryPrimaryView(baseviews.PrimaryView):
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      accepts = ('BlogEntry',)
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      def cell_call(self, row, col):
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          entity = self.entity(row, col)
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          self.w(u'<h1>%s</h1>' % entity.title)
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          self.w(u'<div>%s</div>' % entity.publish_date)
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          self.w(u'<div>%s</div>' % entity.category)
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          self.w(u'<div>%s</div>' entity.content)
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[WRITE ME]
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* Defining views with selection/views
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* implementing interfaces, calendar for blog entries
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* show that a calendar view can export data to ical
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* create view "blogentry table" with title, publish_date, category
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* in view blog, select blogentries and apply view "blogentry table"
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* demo ajax by filtering blogentry table on category
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Components
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===========
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[WRITE ME]
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* explain the component architecture
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* add comments to the blog by importing the comments component
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MainTemplate
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============
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[WRITE ME]
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* customize MainTemplate and show that everything in the user
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  interface can be changed
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RSS Channel
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===========
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[WRITE ME]
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* show that the RSS view can be used to display an ordered selection
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  of blog entries, thus providing a RSS channel
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* show that a different selection (by category) means a different channel
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RQL
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====
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[WRITE ME]
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* talk about the Relation Query Language
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URL Rewriting
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=============
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[WRITE ME]
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* show how urls are mapped to selections and views and explain URLRewriting 
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Security
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=========
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* talk about security access rights and show that security is defined
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  using RQL
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