More information here. The 'debug' layout allows you to see all relevant data used by layout templates or data sources during render. The 'Custom' layout is a minimal layout to start with if you want to create your own customized UI from scratch. This will copy the selected template and allow you to make modifications as needed. Updating a builtin layout ex: 'Cards', 'Detail List', etc. All previous custom layout content will be overwritten. You have also the ability to use an external.
This file must be stored in an accessible location for uses ex: a SharePoint document library with 'Read' permissions for concerned users. Unless you specify an external file, the template content is stored in the Web Part property bag.
For more control over the UI, you may want to use the extensibility library feature. The result types feature gives you the ability to apply a conditional rendering at item level according to data source field values.
In case you use a custom template, you can still benefit from this feature following this markup:. Skip to content. PnP Modern Search v4. Setting Description Default value Manage card fields Allows you to define you own values for card placeholder fields. By default, the document card fields come with predefined mappings but you can set your own. As a field value, you can choose either a field property value from the list or as free text and without any transformation or use an Handlebars expression by clicking on the checkbox next to it.
In this case, all helpers from the main template are available. For HTML fields you can use the special variable root. If you don't set a value for those fields i. Enable result preview If enabled, display a callout with an interactive preview of the document based on the value specified value for the PreviewUrl current data source slot.
Show file icon Hide or display the file icon for the result card. The file icon is determined using the FileType slot. Compact mode Display cards as compact. Preferred number of cards per row Specifiy the preferred number of cards to display per row when the required width space is available.
The Web Part will always adjust the number of possible tiles to display depending the available width. It means that if you set this value to '3' but you display the Web Part in small column, only 1 tile will be displayed. Setting Description Default value Manage columns Allows you to build you own table view by adding or removing columns dynamically.
For each column, you get the following options: Sort order : the order of the column in the table. Any template variables in the argument list will first be evaluated and their resultant values passed to the code. Named parameters may also be specified.
These are automatically collected into a single hash array which is passed by reference as the last parameter to the sub-routine. Parenthesised parameters may be added to any element of a variable, not just those that are bound to code or object methods. At present, parameters will be ignored if the variable isn't "callable" but are supported for future extensions. Think of them as "hints" to that variable, rather than just arguments passed to a function.
User code should return a value for the variable it represents. This can be any of the Perl data types described above: a scalar, or reference to a list, hash, subroutine or object. Where code returns a list of multiple values the items will automatically be folded into a list reference which can be accessed as per normal.
Errors can be reported from user code by calling die. Errors raised in this way are caught by the Template Toolkit and converted to structured exceptions which can be handled from within the template. A reference to the exception object is then available as the error variable. Error messages thrown via die are converted to exceptions of type undef the literal string "undef" rather than the undefined value. Exceptions of user-defined types can be thrown by calling die with a reference to a Template::Exception object.
Throwing an exception as:. The Template Toolkit implements a number of "virtual methods" which can be applied to scalars, hashes or lists.
For example:. Here mylist is a regular reference to a list, and 'sort' is a virtual method that returns a new list of the items in sorted order. You can chain multiple virtual methods together. Here the join virtual method is called to join the sorted list into a single string, generating the following output:. See Template::Manual::VMethods for details of all the virtual methods available. Most frequently, you see this in double-quoted strings:. The same rules apply within directives.
The most common use is to retrieve an element from a hash where the key is stored in a variable. Note also that a variable containing a reference to a Template::Document object can also be processed in this way.
Any simple variables that you create, or any changes you make to existing variables, will only persist while the template is being processed. The top-level variable hash is copied before processing begins and any changes to variables are made in this copy, leaving the original intact.
The current namespace hash is cloned to prevent any variable changes made in the included template from interfering with existing variables. The PROCESS option bypasses the localisation step altogether making it slightly faster, but requiring greater attention to the possibility of side effects caused by creating or changing any variables within the processed template.
Dotted compound variables behave slightly differently because the localisation process is only skin deep. The current variable namespace hash is copied, but no attempt is made to perform a deep-copy of other structures within it hashes, arrays, objects, etc.
A variable referencing a hash, for example, will be copied to create a new reference but which points to the same hash. It is written in the Perl programming language but you don't need to know any Perl to use it. In fact, it was specifically created to allow web designers and developers to concentrate on generating web pages without getting bogged down in programming matters. We call this a "Clear Separation of Concerns" and it makes the whole processes of building, updating and maintaining a web site or web application significantly easier.
This web site contains the complete documentation for the Template Toolkit. TT2 Home Page.
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