Laravel 加入多个 table 不工作

Question

我在 Laravel 5.4 上遇到问题，当我尝试仅使用一个连接时它工作正常并且 returns 正确数据，但是他们添加另一个连接它不起作用。

$data = Player::select(DB::raw('CONCAT(familyName,", ",firstName) AS fullName'))
    ->where('firstname', 'like', '%'.$search.'%')
    ->orWhere('familyName', 'like', '%'.$search.'%')
    ->orderBy('familyName', 'asc')
    ->join('teams', 'players.primaryClubId', '=', 'teams.clubId')
    ->join('person_competition_statistics', 'players.personId', '=', 'person_competition_statistics.personId')
    ->addSelect(['players.*', 'teams.teamName', 'teams.teamNickname', 'teams.teamCode'])
    ->get()
    ->unique() //remove duplicates
    ->groupBy(function($item, $key) { //group familyName that starts in same letter
        return substr($item['familyName'], 0, 1);
    })
    ->map(function ($subCollection) {
        return $subCollection->chunk(4); // put your group size
    });

return $data;

返回错误：

QueryException in Connection.php line 647:
SQLSTATE[23000]: Integrity constraint violation: 1052 Column 'familyName' in field list is ambiguous (SQL: select CONCAT(familyName,", ",firstName) AS fullName, `players`.*, `teams`.`teamName`, `teams`.`teamNickname`, `teams`.`teamCode` from `players` inner join `teams` on `players`.`primaryClubId` = `teams`.`clubId` inner join `person_competition_statistics` on `players`.`personId` = `person_competition_statistics`.`personId` where `firstname` like %% or `familyName` like %% order by `familyName` asc)

Answer 1

如果您要加入 table，那么您应该提供 table 别名。像 t 这样的团队，像 p 这样的球员，然后像 p.playername

这样的列名

Laravel 加入多个 table 不工作

Laravel Join multiple table not working

php

orm

laravel

laravel-5

laravel-eloquent