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<?php |
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namespace Merodiro\Friendships; |
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trait Friendable |
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{ |
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public function checkFriendship($user) |
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{ |
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if ($this->id == $user->id) { |
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return 'same_user'; |
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} |
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$friendship = Friendship::betweenUsers($this, $user) |
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->first(); |
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if (!$friendship) { |
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return 'not_friends'; |
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} |
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if ($friendship->status == 1) { |
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return 'friends'; |
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} |
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if ($friendship->requester == $this->id) { |
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return 'waiting'; |
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} |
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if ($friendship->user_requested == $this->id) { |
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return 'pending'; |
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} |
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} |
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public function addFriend($recipient) |
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{ |
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$friendshipStatus = $this->checkFriendship($recipient); |
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if ($friendshipStatus == 'not_friends') { |
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Friendship::create([ |
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'requester' => $this->id, |
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'user_requested' => $recipient->id, |
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]); |
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event('friendrequest.sent', [$this, $recipient]); |
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} |
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return $friendshipStatus == 'not_friends'; |
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} |
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public function acceptFriend($sender) |
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{ |
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$friendshipStatus = $this->checkFriendship($sender); |
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if ($friendshipStatus == 'pending') { |
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Friendship::betweenUsers($this, $sender) |
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->update(['status' => 1]); |
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event('friendrequest.accepted', [$this, $sender]); |
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} |
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return $friendshipStatus == 'pending'; |
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} |
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public function deleteFriend($user) |
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{ |
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$friendshipStatus = $this->checkFriendship($user); |
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if ($friendshipStatus != 'not_friends') { |
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Friendship::betweenUsers($this, $user) |
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->delete(); |
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event('friendship.deleted', [$this, $user]); |
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} |
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return $friendshipStatus != 'not_friends'; |
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} |
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public function friendsIds() |
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{ |
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$friendsIds = Friendship::where(function ($query) { |
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$query->whereSender($this); |
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})->orWhere(function ($query) { |
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$query->whereRecipient($this); |
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})->accepted(1)->get(['user_requested', 'requester'])->toArray(); |
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$friendsIds = collect($friendsIds)->flatten()->unique()->reject(function ($id) { |
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return $id == $this->id; |
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}); |
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return $friendsIds; |
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} |
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public function friends() |
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{ |
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$friendsIds = $this->friendsIds(); |
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return static::whereIn('id', $friendsIds) |
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->distinct() |
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->get(); |
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} |
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View Code Duplication |
public function friendRequestsReceived() |
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{ |
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$senders = Friendship::whereRecipient($this) |
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->accepted(0) |
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->get(['requester']) |
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->toArray(); |
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return static::whereIn('id', $senders) |
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->get(); |
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} |
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View Code Duplication |
public function friendRequestsSent() |
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{ |
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$recipients = Friendship::whereSender($this) |
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->accepted(0) |
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->get(['user_requested']) |
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->toArray(); |
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return static::whereIn('id', $recipients) |
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->get(); |
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} |
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public function isFriendsWith($user) |
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{ |
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$friendshipStatus = $this->checkFriendship($user); |
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return $friendshipStatus === 'friends'; |
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} |
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public function mutualFriendsCount($user) |
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{ |
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$userFriends = $user->friendsIds(); |
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$friends = $this->friendsIds(); |
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return $userFriends->intersect($friends)->count(); |
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} |
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public function mutualFriends($user) |
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{ |
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$userFriends = $user->friendsIds(); |
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$friends = $this->friendsIds(); |
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$mutualIds = $userFriends->intersect($friends); |
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return static::whereIn('id', $mutualIds)->get(); |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: