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Level 2
6,330 XP
1 month ago
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Replied to Quickly Counting Records With Eloquent

@snapey The related model loading was because it is used in the export and I co-opted this method for the count. Many thanks for your feedback, every day is a school day :-)

After thinking about it we will only show count figures if it is not really high anyway as if its beyond 1 million, the count is not significant. We just wanted to give the user an idea of what to expect before queuing up the csv export, and because we reject export requests that are too large.

Many thanks from a long time lurker!

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Replied to Quickly Counting Records With Eloquent

Ahh OK, I misunderstood as in the export I just return the result of queryWithParameters (using the Laravel Excel package with FromQuery). Thank you, I will check the table :)

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Replied to Quickly Counting Records With Eloquent

Thanks, I thought it must be something like that, as I said this query is used for the export itself so sort of borrowed it for the count. We are not in production yet though. Would you be able to show me what that query would look like? :)

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Started a new Conversation Quickly Counting Records With Eloquent


I display in my application a count of the records that exist within a table. When the user changes an input i.e. selects a different start date, it sends an ajax request to the controller below to get an updated estimated count based on the user's selection. The idea is that they can see how many records exist based on their selected parameters.

I filter the query using three user selected options: date_start, date_end and sensor_id. This method filters the result:

public static function queryWithParameters($parameters) {
        $sensor_data = SensorData::query();
        $sensor_data = $sensor_data->with(['sensor'])
           ->whereBetween('created_at', [$parameters['date_start'], $parameters['date_end']]);
        if((int)$parameters['sensor_id'] !== 0) {
            $sensor_data = $sensor_data->where('sensor_id', $parameters['sensor_id']);
        return $sensor_data;

I use this method elsewhere to return data for a csv export, however, for this I use in a controller and return the count of the result:

public function index() {
        $sensor_data = SensorData::queryWithParameters(request());
        return response()->json($sensor_data->count());

This all works as intended, however, this table is expected to eventually contain millions of rows. WIth 3.2m rows, it takes about 2 seconds to update the count. Is there a better way of writing this so that the query returns a quicker count? We are only really after an estimate of what is there!

Hope that makes sense - thank you for your help!