Let's start by thinking about the Quotation table. Because Bill is mostly the same as Quotation, we'll just implement Quotation here. Try this implementation with Bill, as well by yourself. First, we'll add an Export and Import button in the Quotation list, so that it begins to function. Next, we'll make the file start downloading when the Export button is pressed. We'll add a new panel so that we can visually check the selected data that we are about to import. So let's go ahead and create this type of data import and export functions.
At first, when exporting, let's consider the data format in which it will be downloaded. This time, we're thinking of outputting in the TSV format instead of CSV or XML. TSV is easier for the developers to read and it's very simple to generate with JavaScript. The following list shows the order of output.
Quotation and Quotations are outputted in a single file. In the case of quotation, the order of output is as follows...