Laravel 查询生成器何时/如果

Question

I'm trying to filter out some specific records from a table based on user filter but running into issue on how to properly format it. I have sales_channel and total columns from Orders table.

If sales_channel == Non-Amazon then I need to grab all of those records regardless of total . Alternatively, if sales_channel !== Non-Amazon then I only want to grab records that have a total > 0

For my initial query I have the following which works as expected:

$orders = Orders::where('sales_channel', '=', 'Non-Amazon')->orWhere(function ($query) {
    $query->where('total', '>', 0);
})->get();

However, when a user sends a request to filter data, I'm not sure how to properly filter the request. This is what I currently have where $request['sales_channel'] is an array of sales channels that they want to return:

$request = $request->data;
$orders = Orders::query();

if ($request['sales_channel']) {
    $orders->whereIn('sales_channel', $request['sales_channel']);
}

How would I make it so if $request['sales_channel'] contains Non-Amazon , grab all of the Non-Amazon records, but for any other sales channel, total > 0 must be true.

---

Example:

sales_channel | total
--------------+----------------
Non-Amazon    | 19.99
Non-Amazon    | 0.00
Amazon.com    | 11.00
Amazon.com    | 0.00
Amazon.ca     | 22.00
Amazon.com.mx | 19.99

User wants to filter by Non-Amazon and Amazon.com results:

$request['sales_channel'] = ['Non-Amazon', 'Amazon.com'];

Results would return:

sales_channel | total
--------------+----------------
Non-Amazon    | 19.99
Non-Amazon    | 0.00
Amazon.com    | 11.00

Answer 1

You can try something like this:

$request = $request->data;
$orders = Orders::query();

if ($request['sales_channel']) {
    $orders = $orders->whereIn('sales_channel', $request['sales_channel']);
}else{ 
    //the initial query
    $orders = $orders->where('sales_channel', '=', 'Non-Amazon')->orWhere(function ($query) {
        $query->where('total', '>', 0);
    });
}

//check if the orders are filtered correctly
var_dump($orders->get());

Answer 2

use when

$orders = Orders::when(($request->sales_channel=="Non-Amazon"),function ($query)use($request){
                 $query->where('sales_channel', $request->sales_channel);
                 })->when(($request->sales_channel!="Non-Amazon"),function ($query)use($request){
                 $query->where('total', '>', 0);
                })->get();