Laravel how merge two query results into a single object

Title: Merging Two Query Results into a Single Object Using Laravel Body:

When working on projects involving complex data structures or various aspects of your application that require different pieces of information, you might need to combine multiple query results into one object. In this post, we'll explore how to merge two query results from your Laravel models using Eloquent and how to achieve the expected output format.

Prerequisite: Defining Model Methods

To begin merging multiple query results into a single object, you need to have two relevant model methods. Let's assume we have a TeamCompetitionStatistics model and a Ladder model for team statistics and positions respectively. Here are the code snippets for these models:

// TeamCompetitionStatistics Model
public static function getTeamStats($competitionId, $teamId) {
    return TeamCompetitionStatistics::where('competitionId', $competitionId)
        ->where('teamid', $teamId)
        ->where('periodNumber', 0)
        ->get();
}

// Ladder Model
public static function getTeamPosition($competitionId, $teamId){
    return self::where('latest', 1)
        ->where('competitionId',$competitionId)
        ->where('competitorId', $teamId)
        // To customize your position and streak data, you can use a map() function here.
        ->get(['position', 'streak'])
        ->map(function($item, $key){
            $item->position = $item->position . date("S", mktime(0, 0, 0, 0, $item->position, 0));
            if(strpos($item->streak, '-') !== FALSE) {
                $item->streak = str_replace('-', 'L', $item->streak);
            } else {
                $item->streak = 'W'.$item->streak;
            }
            return $item;
        });
}

Getting Values in the Controller

In your controller, you can get values from both models as follows:

$teamStanding = Ladder::getTeamPosition($request->competitionId, $request->id);
$teamStatistics = TeamCompetitionStatistics::getTeamStats($request->competitionId, $request->id);

In this example, we are using the request object to access the competition ID and team ID. These values will be used in both model methods to fetch the relevant data for each of them independently.

Merging Results for the Expected Output Format

Next, you'll want to merge these two result sets into a single object with both team statistic and position data:

$result = $teamStatistics->merge($teamStanding);

The method above combines the results of the two query executions. However, it might not give you the expected output format where both sets of data are merged into a single object. To achieve this, you can use the following code snippet:

$result = new \Illuminate\Database\Eloquent\Collection();
$teamStatistics->push($teamStanding);

Here, we first create an empty Collection object and then push the result of the second query into it. The resulting Collection will contain both sets of data as a single array of objects. Finally, to make sure your output contains both team statistic and position data, you can combine the results together by merging them as follows:

$finalResult = $result->map(function ($item) use ($teamStanding) {
    if (is_array($teamStanding)) {
        $item['teamstanding'] = array_only($teamStanding[0], ['position', 'streak']);
    } else {
        $item['teamstanding'] = $teamStanding;
    }
    return $item;
});

// Return the final merged result
return $finalResult;

This code checks whether the team standing is an array or not. If it's an object, we extract the relevant position and streak values from that object. Otherwise, if it's already an array, we just assign the whole object to the 'teamstanding' key of each item in the result. Finally, we return the final merged result for consumption within your application.

Conclusion

By following these steps, you can successfully merge two query results into a single object using Laravel and Eloquent. This approach allows you to obtain better data organization and streamline the process of working with complex information. Keep in mind that each scenario might require different implementation methods, but this solution serves as a good starting point for combining multiple query executions.