The purpose of this hands-on lab is to introduce the concept of building and extending Liquid templates.
The exercises work best when you have sample data to work with. Depending on the environment that you are working with, you might want to install some sample data to assist with the exercises. Microsoft Dataverse does provide the ability to add sample data as needed.
Learning objectives
At the end of these exercises, you will be able to:
Extend Liquid templates by using extends and block tags.
Reuse Liquid templates by using the include tag.
Apply table permissions to the results of the new template.
Prerequisites
For this exercise, you will need to have the following parameters set up in your environment:
A Power Apps portal that is provisioned. If you do not have a Power Apps portal available, follow the Create Portal instructions to create one.
Access to the Power Apps maker portal.
High-level steps
To finish the exercise, you need to complete the following high-level tasks:
Create a partial template by accessing Dataverse data to use as a layout block.
Create a new template that extends a two-column layout web template.
Overwrite the side panel to include the partial template.
Change the template of an existing webpage.
Configure table permissions to display data to anonymous users.
Detailed steps
To complete the exercise, you will build a new page template that includes a side panel that lists all accounts in Dataverse.
Create a partial template
Your first task is to create a partial template that will not be used to render a page but will instead be inserted into another template.
1. Open https://make.powerapps.com
2. Select the Portals Management app
3. Select Page Templates
4. Select New
5. Enter the following values
Name - Directory
Website - Select your current website
Source - Enter the following content:
6. Select Save & Close.
Extend an existing template
Next, you will create a new template that extends an existing Liquid template and then insert the template that you previously created.
1. Select Web Templates.
2. Select New.
3. Enter the following values:
o Name - Directory Template
o Website - Select your current website
o Source - Enter the following content:
4. Select Save & Close.
Create a page template and associate with that page
In this exercise, you will create a page template that will use your new web template and will include the Directory output.
1. Select Page Templates.
2. Select New.
3. Enter the following values:
o Name - Directory Page Template
o Website - Select the current website
o Type - Select Web Template
o Web Template - Select Directory Template
o Table Name - Select Web Page
4. Select Save & Close.
Test
Your next step is to test that your new template works:
1. Open Power Apps portals Studio in a new browser tab. Then, follow these steps:
0. Go to the Power Apps maker portal at https://make.powerapps.com.
1. Select the target environment by using the environment selector in the upper-right corner.
2. From the Apps list, select the application of type Portal.
3. Select the Edit menu.
2. On the toolbelt, select the Pages icon.
3. Select an existing page, for example, Product A under Services.
4. Locate the Template property in the Component panel on the right side.
5. Select Directory Page Template as the new template.
6. Select Browse website. The message "You do not have permissions to access the directory" should be displayed.
Add table permissions
Follow these steps to add table permissions:
1. Return to the Portal Management app.
2. Select Table Permissions.
3. Select + New.
4. Enter the following values:
o Name - Account Directory
o Table Name - Select the account table
o Website - Select your current website
o Scope - Select Global
o Privileges - Select Read
5. Select Save.
6. Scroll to the Web Roles subgrid.
7. Select Add Existing Web Role.
8. Locate and select Anonymous users and Authenticated users.
9. Select Add.
Test
Your final task is to test your new template:
1. Switch to portals Studio.
2. Select Browse website.
This command rebuilds the site cache. A simple browser page refresh will not be sufficient to update the data.
The page should now be displayed and include the list of accounts.
