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  • TutorialsDataObjects as Pages - Part 1: Keeping it Simple



    In this two part tutorial, I am going to show you how to display DataObjects as if they were pages. This is often very useful for times when you have lots of items that don't warrant full site tree objects, but do need to be displayed on their own on the site. In this first part displaying Staff Members we are going to keep it simple, using a Data Object Manager to manage our Staff Members and referring to their ID in the URL. Later in part 2, we will see how to use ModelAdmin to manage a Search Engine friendly product catalogue.

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  • TutorialsDataObjects as Pages - Part 2: Using Model Admin and URL Segments to create a product catalogue



    We now know the basics of using DataObjects as Pages from Part 1 of this tutorial. In part 2, we are now going to look at taking this further and creating a basic product catalogue with products that are DataObjects managed via the ModelAdmin interface. This tutorial will also serve as an introduction to ModelAdmin it self, which is an extremely powerful CRUD (Create, Read, Update, Delete) manager for any type of DataObject, whether used as pages or not.

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  • TutorialsDataObject as Pages: The Module



    It's been a while since we published the DataObject as Pages series of tutorials, which have proved to be particularly popular. At Aab Web we use those techniques regularly as a way to allow our clients to mange large amounts of flat content or content that is distributed in multiple places throughout a site. Although the final implementations in each project are often varied and bespoke, they all start with the basics outlined in those tutorials, so it made sense for us to build a starting point to work from (and include some more complex features at the same time). That starting point is this module, catchily entitled: DataObject as Pages.

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  • TutorialsPaginating a filtered DataObjectSet


    If you have ever tried to paginate a DataObjectSet that has been customised since fetching it from the database you will have descovered that it simply doesn't work. This short tutorial provides some great code to resolve this problem and paginate to your hearts content!

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  • TutorialsAdd flexible MetaTags control to Pages


    When you display DataObjects as if they are a single Page or use a Page Action to display a different view of the same Page, by default your MetaTags are the same as the tags you entered in the CMS.

    One way to change the MetaTags dynamicly is to add a lot of template controls to display different MetaTags for each view, but you can get a lot more flexibility by overriding the SiteTree MetaTags function in your Page_Controller.

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  • TutorialsAdd a duplicate button to Model Admin



    Often you will want to add some extra features to your Model Admin interface. Luckily it's pretty straightforward when you know how! In this tutorial we are going to add a simple 'Duplicate' button for our managed Model.

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  • TutorialsDynamically Generating Dropdown Lists


    This post title may look familiar, but it has in fact been completely re-written with lots of new code! When using dropdown menus, you will often want to dynamically generate the options, usually to a list of DataObjects or Pages for the user to choose from. This tutorial explores the options at your disposal when it comes to creating dynamic dropdowns in the SilverStripe.

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  • TutorialsSorting on a related DataObject in ModelAdmin


    Sometimes, in ModelAdmin, we want to be able to have a different default sort.

    Specifically, like in cases where a has_one is the preferred sorting. For example, we have a warehouse. In our DataObjects, we have the object "Lanes", has_many Products. And we have Products, has_one "Lanes". When we're browsing our Products in the admin, we want to have them default sorted by their Lane, not their name.

    Just saying default_sort = 'Lanes'; sadly does not do the job. It'll give you reddish-screens and stuff. Which is not what we like.

    Here's a (quite simple actually) solution.

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  • TutorialsCreating and deleting dataobjects from the front end



    One of my clients wanted a clear interface from which he could easily attach downloadable files to some pages of his site. Instead of using modelAdmin and granting him an access to Silverstripe admin panel, I chose to create a front-end page showing a simple upload form, a list of the files previously uploaded to the server, and a delete button for each of them.

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  • TutorialsCreating Previous and Next Buttons on a page


    When you have a number of pages which follow on from one another you may find that asking a user to return to an index or select the next item from a side menu each time they want to progress is cumbersome. In this situation having previous and next buttons at the bottom of a page becomes very useful. In this snippet we'll add these buttons and also a counter to show the current page we are on and the total number of pages.

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