PrimeNg <p-table> sorting

Question

I am using primeNg <p-table>. I want to implement sorting of data. What I did is below

sort.HTML

<p-table [columns]="cols" [value]="documents">
    <ng-template pTemplate="header" let-columns>
        <tr>
            <th *ngFor="let col of columns" [pSortableColumn]="col.field">
                {{col.header}}
                <p-sortIcon [field]="col.field"></p-sortIcon>
            </th>
        </tr>
    </ng-template>
    <ng-template pTemplate="body" let-doc>
        <tr>
            <td>
                {{doc.sName}}
            </td>

        <td>
                {{doc.sYear}}
            </td>
        <td>
                {{doc.sAge}}
            </td>
        <td>
                {{doc.sColor}}
            </td>        
        </tr>
    </ng-template>
</p-table>

sort.ts

this.cols = [
            { field: 'name', header: 'Name' },
            { field: 'year', header: 'Year' },
            { field: 'age', header: 'Age' },
            { field: 'color', header: 'Color' }
        ];

ngOnInit(){
    //made a service call and got data for

this.documents=[{
"sName":"Jhon",
"sYear":"1994",
"sAge":"20",
"sColor":"Red"
},
{
"sName":"Sam",
"sYear":"1996",
"sAge":"25",
"sColor":"Red"
},
{
"sName":"Anna",
"sYear":"1991",
"sAge":"21",
"sColor":"Green"
},
{
"sName":"Jhon",
"sYear":"1999",
"sAge":"25",
"sColor":"Blue"
},
{
"sName":"Betty",
"sYear":"1993",
"sAge":"35",
"sColor":"Red"
}]
}

As of now only Name field is getting sorted, how can I implement sorting in other columns as well? I used [pSortableColumn] but columns are not getting sorted, I am missing out of somepoint. Can you please guide me where I am wrong?

PS: I cannot used <p-dataTable>.

Answer 1

For Sorting with Turbo table / p-table with fixed column try below code

                <p-table #dt [value]="data">
                <ng-template pTemplate="header">
                    <tr>
                        <th [pSortableColumn]="'Name'">Name
                            <p-sortIcon [field]="'Name'"></p-sortIcon>
                        </th>
                        <th [pSortableColumn]="'Age'">Age
                            <p-sortIcon [field]="'Age'"></p-sortIcon>
                        </th>
                        <th [pSortableColumn]="'Height'">Height
                            <p-sortIcon [field]="'Height'"></p-sortIcon>
                        </th>
                    </tr>
                </ng-template>
                <ng-template pTemplate="body" let-col>
                    <tr>
                        <td>{{col.Name}}</td>
                        <td>{{col.Age}}</td>
                        <td>{{col.Height}}</td>
                    </tr>
                </ng-template>
            </p-table>

Answer 2

if I got your question right, you are not asking to be able to sort multiple columns at the same time, but simply sorting is not working. In your code the problem is that you are specifying in the header of the table the following columns field to sort to:

[pSortableColumn]="col.field"

and these fields are defined as:

this.cols = [
            { field: 'name', header: 'Name' },    
            { field: 'year', header: 'Year' },
            { field: 'age', header: 'Age' },
            { field: 'color', header: 'Color' }
        ];

BUT your data is arriving with different names:

this.documents=[{
          "sName":"Jhon",
          "sYear":"1994",
          "sAge":"20",
          "sColor":"Red"
},
[...]

"name" != "sName" so your table is not capable to sort the data. In fact I'm surprised you say that the column "name" is sortable.

Just change the definition and the code will be working.

In any case, to allow also multi column sorting, I suggest to change the code as:

<p-table [columns]="cols" [value]="documents" sortMode="multiple">
    <ng-template pTemplate="header" let-columns>
        <tr>
            <th *ngFor="let col of columns" [pSortableColumn]="col.field">
                {{col.header}}
                <p-sortIcon [field]="col.field"></p-sortIcon>
            </th>
        </tr>
    </ng-template>
    <ng-template pTemplate="body" let-doc let-columns="columns">
        <tr>
            <td *ngFor="let col of columns">
                {{doc[col.field]}}
            </td>
        </tr>
    </ng-template>
</p-table>

It is also more light and no change in the ts file is required, even if you take data from a web service since from the html file point of view you are always passing a "documents" object.