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<?php |
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namespace App\Judite\Models; |
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use Illuminate\Database\Eloquent\Model; |
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use App\Exceptions\GroupIsFullException; |
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use App\Exceptions\StudentIsNotEnrolledInCourseException; |
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use App\Exceptions\StudentHasAlreadyGroupInCourseException; |
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class Group extends Model |
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{ |
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/** |
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* The attributes that are mass assignable. |
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* |
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* @var array |
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*/ |
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protected $fillable = ['name']; |
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protected $visible = ['id','course','students']; |
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/** |
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* Get course of this group. |
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* |
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* @return \Illuminate\Database\Eloquent\Relations\BelongsTo |
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*/ |
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public function course() |
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{ |
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return $this->belongsTo(Course::class); |
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} |
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/** |
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* Get students for this group. |
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* |
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* @return \Illuminate\Database\Eloquent\Relations\BelongsToMany |
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*/ |
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public function students() |
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{ |
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return $this->belongsToMany(Student::class) |
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->as('invitation') |
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->withPivot('accepted_at'); |
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} |
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/** |
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* Get confirmed students for this group. |
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* |
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* @return \Illuminate\Database\Eloquent\Relations\BelongsToMany |
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*/ |
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public function confirmedStudents() |
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{ |
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return $this->students()->wherePivot('accepted_at', '!=', null); |
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} |
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/** |
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* Get pending students for this group. |
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* |
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* @return \Illuminate\Database\Eloquent\Relations\BelongsToMany |
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*/ |
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public function pendingStudents() |
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{ |
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return $this->students()->wherePivot('accepted_at', '=', null); |
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} |
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/** |
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* Check if this group is eligible for acceptance. |
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* |
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* @return bool |
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*/ |
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public function isEligibleForAcceptance() |
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{ |
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$currentStudentsCount = $this->relationLoaded('students') |
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? $this->students->count() |
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: $this->students()->count(); |
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return $currentStudentsCount >= app('settings')->min_group_members; |
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} |
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/** |
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* Check if this group is full. |
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* |
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* @return bool |
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*/ |
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public function isFull() |
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{ |
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$currentStudentsCount = $this->relationLoaded('students') |
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? $this->stisEligibleForAcceptanceudents->count() |
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: $this->students()->count(); |
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return $currentStudentsCount === app('settings')->max_group_members; |
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} |
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/** |
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* Check if this group is empty. |
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* |
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* @return bool |
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*/ |
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public function isEmpty() |
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{ |
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return ! $this->students()->exists(); |
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} |
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/** |
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* Check if this group is available. |
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* |
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* @return bool |
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*/ |
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public function isAvailableToJoin() |
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{ |
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$currentStudentsCount = $this->relationLoaded('students') |
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? $this->students->count() |
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: $this->students()->count(); |
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return $currentStudentsCount < app('settings')->max_group_members; |
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} |
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/** |
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* Add the given student to this group. |
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* |
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* @param \App\Judite\Models\Student $student |
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* |
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* @throws \App\Exceptions\GroupIsFullException |
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* |
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* @return bool |
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*/ |
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public function addMember(Student $student) |
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{ |
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throw_if($this->isFull(), new GroupIsFullException('The group is full.')); |
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throw_if( |
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$student->hasGroupInCourse($this->course), |
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new StudentHasAlreadyGroupInCourseException() |
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); |
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throw_unless( |
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$student->isEnrolledInCourse($this->course), |
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new StudentIsNotEnrolledInCourseException($this->course) |
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); |
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if ($student->isAssociatedToGroup($this)) { |
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return true; |
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} |
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return $this->students()->save($student); |
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} |
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/** |
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* Remove the given member from this group. |
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* |
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* @param \App\Judite\Models\Student $member |
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* |
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* @return $this |
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*/ |
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public function removeMember(Student $member) |
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{ |
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if (! $member->isAssociatedToGroup($this)) { |
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return $this; |
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} |
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$this->students()->detach($member->id); |
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$this->save(); |
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if ($this->isEmpty()) { |
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$this->delete(); |
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} |
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return $this; |
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} |
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} |
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Hackathonners /
swap
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Checks if undeclared accessed properties appear in database migrations and if the creating migration is correct.