Introduction
Basic Concepts
Understanding Routing
Controllers
Views
Assets
Modules Calling Modules
Parent & Child Modules
Database Operations
Modules within Modules
Templates & Themes
Helpers Explained
Form Handling
Working with Files
The Module Import Wizard
Authorization & Authentication
The API Explorer
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Accessing Child Modules
Trongate provides multiple ways to access and utilize child modules within your application.
URL Routing
To access a child module via URL, use the following format:
Example #1
The code sample below demonstrates how to access the 'display' method of an 'accessories' child module within a 'cars' parent module:
Creating Links
Example #2
The code sample below demonstrates how to use the Trongate anchor() function to create links to child module methods:
Loading Child Modules Programmatically
To load a child module within a controller or another module:
Example #3
This example demonstrates how to load and use a child module named 'product_reviews' within a parent module 'shop'. We'll load the child module and then call its 'get_latest_reviews' method:
In this example, the 'product_reviews' child module is loaded using:
Thereafter, the child module's methods can be accessed using syntax of the following form:
In the line of code above, method_name would be replaced with a meaningful and valid method name. The method name would reference a method within the product_reviews module.
The example shown above fetches reviews, passing in the $product_id as an argument:
For a more robust and modern coding style, consider using access modifiers, doc blocks, type hinting and return types. For example:
In the code sample above we have a type hinting value set to 'mixed'. This is because the display_product() method is attempting to read the $product_id from the third segment of the URL. The expectation is that the $product_id will be an integer. However, if it's not then certainly don't want the code to break! For this reason, we set the type to an integer with:
The following line of code would have achieved the same effect (making sure $product_id is an integer: