Angularjs - Navigating the Depths of OrderBy: Effective Strategies for Handling Complex Sorting Structures

Question

Angularjs - Navigating the Depths of OrderBy: Effective Strategies for Handling Complex Sorting Structures

I have a collection of Incidents (displayed as an array below) that I need to sort meticulously by State, Priority, and Start_date. Specifically, I want them ordered in the sequence of Initial > Ongoing > InReview > Resolved for State, then Priority should be P1 > P2 > P3, and finally within each priority level sorted by Start_date from oldest to newest.

Despite searching online, I haven't been able to find any examples of such a detailed sorting requirement. Does anyone have suggestions on how I can achieve this?

Below is the representation of my incidents in an array:

$scope.Incidents=  [{
  Start_date: "2021-12-01 09:20:00"
  State: "Initial"
  Priority: "P1"
  },{
  Start_date: "2021-11-01 07:20:00"
  State: "Ongoing"
  Priority: "P2"
  },{  Start_date: "2021-10-01 05:20:00"
  State: "Resolved"
  Priority: "P3"
  },{  Start_date: "2021-12-01 09:48:00"
  State: "Ongoing"
  Priority: "coach"
  },{  Start_date: "2021-11-20 06:55:00"
  State: "InReview"
  Priority: "P1"
  },{  Start_date: "2021-08-01 09:20:00"
  State: "InReview"
  Priority: "P2"
  
}];


<div ng-repeat="incident in Incidents | orderBy:Custom_order">
     <div>{{incident.Priority}} - {{incident.Priority}} - {{incident.Start_date}}</div>
</div>

javascript angularjs

Answer 1

Answer №1

Check out this method for creating a flexible sort function that can be adjusted to handle different sorting scenarios.

const order_of_sort = ["Initial", "Ongoing", "InReview", "Resolved"];
const custom_sort_function = function(item1, item2){
  return order_of_sort.indexOf(item1.State) - order_of_sort.indexOf(item2.State);
}

$scope.Incidents.sort(custom_sort_function);

The order of the elements in order_of_sort will determine the sorting sequence. If you need the sorting order to be reversed, simply add .reverse() after calling .sort(...).

Answer 2

Check out this method for creating a flexible sort function that can be adjusted to handle different sorting scenarios.

const order_of_sort = ["Initial", "Ongoing", "InReview", "Resolved"];
const custom_sort_function = function(item1, item2){
  return order_of_sort.indexOf(item1.State) - order_of_sort.indexOf(item2.State);
}

$scope.Incidents.sort(custom_sort_function);

The order of the elements in order_of_sort will determine the sorting sequence. If you need the sorting order to be reversed, simply add .reverse() after calling .sort(...).

Answer 3

Answer №2

Thanks to Petr's insight, I was able to discover a surprisingly simple solution that seems to be unique to my situation.

Here is the snippet I added within my ng-repeat:

<div ng-repeat="incident in Incidents| orderBy:[Custom_order_State,Custom_order_Priority, 'Start_date'] >
     <div>{{incident.State}} - {{incident.Priority}} - {{incident.Start_date}}</div>
</div>

In my controller, I defined 2 custom order functions like this:

$scope.Custom_order_State= function (incident) {

    if(incident.State=== 'Initial'){
        return 1;
    }
    if(incident.État === 'Ongoing'){
        return 2;
    }
    if(incident.État === 'InReview'){
        return 4;
    }           
    if(incident.État === 'Resolved'){
        return 5;
    }   
        

};




$scope.Custom_order_Priority= function (incident) {

    if(incident.Priority=== 'P1'){
        return 1;
    }
    if(incident.Priority=== 'P2'){
        return 2;
    }
    if(incident.Priority=== 'P3'){
        return 3;
    }           

};

This setup is functioning flawlessly for me.

Answer 4

Thanks to Petr's insight, I was able to discover a surprisingly simple solution that seems to be unique to my situation.

Here is the snippet I added within my ng-repeat:

<div ng-repeat="incident in Incidents| orderBy:[Custom_order_State,Custom_order_Priority, 'Start_date'] >
     <div>{{incident.State}} - {{incident.Priority}} - {{incident.Start_date}}</div>
</div>

In my controller, I defined 2 custom order functions like this:

$scope.Custom_order_State= function (incident) {

    if(incident.State=== 'Initial'){
        return 1;
    }
    if(incident.État === 'Ongoing'){
        return 2;
    }
    if(incident.État === 'InReview'){
        return 4;
    }           
    if(incident.État === 'Resolved'){
        return 5;
    }   
        

};




$scope.Custom_order_Priority= function (incident) {

    if(incident.Priority=== 'P1'){
        return 1;
    }
    if(incident.Priority=== 'P2'){
        return 2;
    }
    if(incident.Priority=== 'P3'){
        return 3;
    }           

};

This setup is functioning flawlessly for me.

Angularjs - Navigating the Depths of OrderBy: Effective Strategies for Handling Complex Sorting Structures

Answer №1

Answer №2

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