What is the best way to implement pipes and incorporate reusable action buttons in a Mat-table component for maximum reusability?

I am seeking assistance in creating a reusable component for the Angular Material Mat-table.

I have made progress on loading data from the parent component to the child component, as can be seen in StackBlitz, but I now want to apply pipes to the data before displaying it in the mat-table. I read that this should be done in the parent component's ts file before passing the data (arrayOfObjects) to the child component. I'm struggling with how to implement this, so any guidance would be appreciated.

Here is the source regarding using Pipes

Additionally, I want to use action buttons within the Mat-table in a reusable manner. While I have attempted this, I don't believe my implementation is truly reusable. Any suggestions on how to improve this would be welcomed.

I realize my explanation may be lacking details, but I genuinely require help with these issues. Please take a look at the StackBlitz linked to better understand the problem.

View the StackBlitz for more information

Thank you in advance for your assistance

Answer №1

If you find yourself in need of using pipes before your data is loaded, one approach is to create a standard pipe in your Angular application. You can then inject the pipe as a service into the parent component's constructor and locally register it within the parent component.

Once you click the button on your table, you can transmit filter data to the parent component. Within the parent component, capture the event and utilize the filter from the pipe.

To update the data in the table, include a getter and setter for your @Input datasource.

For instance:

// Define your custom pipe

@Pipe(...)
export MyPipe {

transform(data: any) {
    // Your implementation here
    
    return transformedData;
}

}


// Parent component implementation

@component(
selector: 'my-father',
template: `
<my-table-component
[dataSource]='dataSource'
(myEventFilter)=myFilter($event)
></my-table-component>

`
providers: [MyPipe]

)

export MyFatherComponent {

  dataSource: any;


  constructor(private myPipe: MyPipe)
  
  
  myFilter(eventData){
  
   this.dataSource = myPipe.transform(eventData)
  
  }
 

}

For more information on getters and setters, refer to the documentation https://angular.io/guide/component-interaction

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