Final Page Index (Backend pagination with Ng2-Smart-Table)

Currently, I am utilizing the Ng2-Smart-Table component along with server-side pagination. Upon testing out the provided example, I delved into the requests being made and noticed that only JSON records or objects were being returned. Here is an example of the response: IMAGE - Response Example.

One lingering question I have is how the component determines the last page. For instance, in the example provided, it goes up to 500 pages. Here is an image of the last page pagination: IMAGE - Example last page pagination

I am currently in the process of trying to grasp this concept in order to implement it into my API. I plan on incorporating it slightly differently from the example by making requests only through the service. Hence, I am eager to understand how the component retrieves the value of the last page.

angulartypescriptng2-smart-table

Answer №1

Page navigation relies on the principles of taking and skipping data. For example, if your grid displays 10 records per page, the value of "take" will be 10. When you're on the first page, the value of "skip" will be zero. The formula used to calculate this concept is as follows:

skip = (pageNo. - 1) * take

I trust this explanation is beneficial.

Answer №2

After investigating further, I stumbled upon the solution to my own query! Through examining the component code within the server.data-source.js file, I unraveled the inner workings of the component. It became evident that the component undergoes two validations and is able to retrieve the sum of lines through two distinct methods.

Initially, it scrutinizes the response header for a key that matches the value specified in the totalKey property of the ServerDataSource instance in your Angular application.

If no match is found, it then delves into the array of JSON objects within the response, searching for the same key.

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