| Total Complexity | 68 | 
| Total Lines | 385 | 
| Duplicated Lines | 0 % | 
| Changes | 3 | ||
| Bugs | 2 | Features | 0 | 
Complex classes like Enrollment often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Enrollment, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 21 | class Enrollment extends Model  | 
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| 22 | { | 
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| 23 | use CrudTrait;  | 
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                         | 
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| 24 | use LogsActivity;  | 
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| 25 | |||
| 26 | protected $guarded = ['id'];  | 
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| 27 | |||
| 28 | protected $appends = ['type', 'name', 'result_name', 'product_code', 'price', 'price_with_currency'];  | 
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| 29 | |||
| 30 | protected $with = ['student', 'course', 'childrenEnrollments'];  | 
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| 31 | |||
| 32 | protected static bool $logUnguarded = true;  | 
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| 33 | |||
| 34 | protected $dispatchesEvents = [  | 
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| 35 | 'deleted' => EnrollmentDeleted::class,  | 
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| 36 | 'deleting' => EnrollmentDeleting::class,  | 
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| 37 | 'created' => EnrollmentCreated::class,  | 
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| 38 | 'updating' => EnrollmentUpdating::class,  | 
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| 39 | 'updated' => EnrollmentUpdated::class,  | 
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| 40 | ];  | 
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| 41 | |||
| 42 | /**  | 
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| 43 | * return all pending enrollments, without the child enrollments.  | 
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| 44 | */  | 
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| 45 | public function scopeParent($query)  | 
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| 46 |     { | 
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| 47 | return $query  | 
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| 48 |         ->where('parent_id', null) | 
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| 49 | ->get();  | 
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| 50 | }  | 
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| 51 | |||
| 52 | public function scopeReal($query)  | 
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| 53 |     { | 
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| 54 | return $query  | 
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| 55 |             ->whereDoesntHave('childrenEnrollments') | 
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| 56 | ->get();  | 
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| 57 | }  | 
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| 58 | |||
| 59 | public function scopeWithoutChildren($query)  | 
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| 60 |     { | 
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| 61 | return $query  | 
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| 62 |             ->where(function ($query) { | 
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| 63 |                 $query->whereDoesntHave('childrenEnrollments') | 
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| 64 |                 ->where('parent_id', null); | 
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| 65 | })  | 
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| 66 |             ->orWhere(function ($query) { | 
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| 67 |                 $query->where('parent_id', null); | 
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| 68 | })  | 
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| 69 | ->get();  | 
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| 70 | }  | 
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| 71 | |||
| 72 | /** only pending enrollments */  | 
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| 73 | public function scopePending($query)  | 
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| 74 |     { | 
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| 75 | return $query  | 
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| 76 |             ->where('status_id', 1) | 
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| 77 |             ->where('parent_id', null) | 
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| 78 | ->get();  | 
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| 79 | }  | 
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| 80 | |||
| 81 | public function scopeNoresult($query)  | 
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| 82 |     { | 
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| 83 |         return $query->doesntHave('result'); | 
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| 84 | }  | 
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| 85 | |||
| 86 | public function scopePeriod(Builder $query, int $periodId)  | 
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| 87 |     { | 
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| 88 |         return $query->whereHas('course', function ($q) use ($periodId) { | 
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| 89 |             $q->where('period_id', $periodId); | 
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| 90 | });  | 
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| 91 | }  | 
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| 92 | |||
| 93 | public function scopeCourse(Builder $query, int $courseId)  | 
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| 94 |     { | 
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| 95 |         return $query->where('course_id', $courseId); | 
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| 96 | }  | 
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| 97 | |||
| 98 | /** FUNCTIONS */  | 
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| 99 | public function changeCourse(Course $newCourse)  | 
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| 100 |     { | 
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| 101 | $this->course_id = $newCourse->id;  | 
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| 102 | $this->save();  | 
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| 103 | }  | 
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| 104 | |||
| 105 | public function markAsPaid()  | 
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| 106 |     { | 
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| 107 | $this->status_id = 2;  | 
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| 108 | $this->save();  | 
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| 109 | |||
| 110 | // also mark children as paid  | 
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| 111 |         foreach ($this->childrenEnrollments as $child) { | 
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| 112 | $child->status_id = 2;  | 
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| 113 | $child->save();  | 
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| 114 | }  | 
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| 115 | }  | 
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| 116 | |||
| 117 | public function isPaid()  | 
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| 118 |     { | 
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| 119 | return $this->status_id == 2;  | 
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| 120 | }  | 
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| 121 | |||
| 122 | public function markAsUnpaid()  | 
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| 123 |     { | 
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| 124 | $this->status_id = 1;  | 
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| 125 | $this->save();  | 
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| 126 | |||
| 127 | $this->invoices()->delete();  | 
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| 128 | |||
| 129 | // also mark children as unpaid  | 
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| 130 |         foreach ($this->childrenEnrollments as $child) { | 
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| 131 | $child->status_id = 1;  | 
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| 132 | $child->invoices()->delete();  | 
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| 133 | $child->save();  | 
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| 134 | }  | 
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| 135 | }  | 
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| 136 | |||
| 137 | public function addScholarship(Scholarship $scholarship)  | 
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| 138 |     { | 
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| 139 | $this->scholarships()->sync($scholarship);  | 
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| 140 |         if (config('invoicing.adding_scholarship_marks_as_paid')) { | 
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| 141 | $this->markAsPaid();  | 
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| 142 | }  | 
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| 143 | }  | 
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| 144 | |||
| 145 | public function removeScholarship($scholarship)  | 
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| 146 |     { | 
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| 147 | $this->scholarships()->detach($scholarship);  | 
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| 148 |         if (config('invoicing.adding_scholarship_marks_as_paid')) { | 
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| 149 | $this->markAsUnpaid();  | 
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| 150 | }  | 
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| 151 | }  | 
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| 152 | |||
| 153 | /** RELATIONS */  | 
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| 154 | public function student()  | 
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| 155 |     { | 
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| 156 | return $this->belongsTo(Student::class, 'student_id');  | 
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| 157 | }  | 
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| 158 | |||
| 159 | public function user()  | 
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| 160 |     { | 
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| 161 | return $this->belongsTo(User::class, 'student_id');  | 
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| 162 | }  | 
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| 163 | |||
| 164 | public function course()  | 
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| 165 |     { | 
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| 166 | return $this->belongsTo(Course::class, 'course_id');  | 
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| 167 | }  | 
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| 168 | |||
| 169 | public function invoices()  | 
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| 170 |     { | 
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| 171 | return $this->belongsToMany(Invoice::class);  | 
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| 172 | }  | 
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| 173 | |||
| 174 | public function comments()  | 
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| 175 |     { | 
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| 176 | return $this->morphMany(Comment::class, 'commentable');  | 
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| 177 | }  | 
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| 178 | |||
| 179 | public function scholarships()  | 
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| 180 |     { | 
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| 181 | return $this->belongsToMany(Scholarship::class);  | 
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| 182 | }  | 
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| 183 | |||
| 184 | public function result()  | 
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| 185 |     { | 
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| 186 | return $this->hasOne(Result::class)  | 
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| 187 |             ->with('result_name') | 
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| 188 |             ->with('comments'); | 
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| 189 | }  | 
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| 190 | |||
| 191 | public function childrenEnrollments()  | 
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| 192 |     { | 
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| 193 | return $this->hasMany(self::class, 'parent_id');  | 
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| 194 | }  | 
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| 195 | |||
| 196 | public function enrollmentStatus()  | 
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| 197 |     { | 
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| 198 | return $this->belongsTo(EnrollmentStatusType::class, 'status_id');  | 
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| 199 | }  | 
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| 200 | |||
| 201 | public function grades()  | 
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| 202 |     { | 
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| 203 | return $this->hasMany(Grade::class);  | 
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| 204 | }  | 
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| 205 | |||
| 206 | public function scheduledPayments()  | 
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| 207 |     { | 
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| 208 | return $this->hasMany(ScheduledPayment::class);  | 
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| 209 | }  | 
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| 210 | |||
| 211 | public function saveScheduledPayments($payments)  | 
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| 212 |     { | 
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| 213 | $this->scheduledPayments()->delete();  | 
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| 214 |         foreach ($payments as $payment) { | 
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| 215 | $this->scheduledPayments()->create([  | 
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| 216 | 'date' => $payment->date,  | 
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| 217 | 'value' => $payment->value,  | 
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| 218 | 'status' => $payment->status,  | 
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| 219 | ]);  | 
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| 220 | }  | 
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| 221 | }  | 
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| 222 | |||
| 223 | /* Accessors */  | 
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| 224 | |||
| 225 | public function getResultNameAttribute()  | 
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| 226 |     { | 
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| 227 | return $this->result->result_name->name ?? '-';  | 
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| 228 | }  | 
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| 229 | |||
| 230 | public function skill_evaluations()  | 
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| 231 |     { | 
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| 232 | return $this->hasMany(SkillEvaluation::class);  | 
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| 233 | }  | 
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| 234 | |||
| 235 | public function getStudentNameAttribute()  | 
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| 236 |     { | 
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| 237 | return $this->student->name ?? '';  | 
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| 238 | }  | 
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| 239 | |||
| 240 | public function getNameAttribute()  | 
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| 241 |     { | 
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| 242 |         return __('Enrollment for').' '.$this->student_name; | 
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| 243 | }  | 
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| 244 | |||
| 245 | public function getTypeAttribute()  | 
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| 246 |     { | 
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| 247 | return 'enrollment';  | 
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| 248 | }  | 
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| 249 | |||
| 250 | /* public function getStudentIdAttribute()  | 
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| 251 |         { | 
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| 252 | return $this->student['id'];  | 
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| 253 | } */  | 
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| 254 | |||
| 255 | public function getStudentAgeAttribute()  | 
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| 256 |     { | 
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| 257 | return $this->student->student_age;  | 
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| 258 | }  | 
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| 259 | |||
| 260 | public function getStudentBirthdateAttribute()  | 
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| 261 |     { | 
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| 262 | return $this->student->birthdate;  | 
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| 263 | }  | 
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| 264 | |||
| 265 | public function getStudentEmailAttribute()  | 
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| 266 |     { | 
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| 267 | return $this->student['email'];  | 
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| 268 | }  | 
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| 269 | |||
| 270 | public function getDateAttribute()  | 
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| 271 |     { | 
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| 272 |         return Carbon::parse($this->created_at, 'UTC')->locale(App::getLocale())->isoFormat('LL'); | 
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| 273 | }  | 
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| 274 | |||
| 275 | public function getChildrenCountAttribute()  | 
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| 276 |     { | 
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| 277 |         return self::where('parent_id', $this->id)->count(); | 
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| 278 | }  | 
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| 279 | |||
| 280 | public function getChildrenAttribute()  | 
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| 283 | }  | 
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| 284 | |||
| 285 | public function getStatusAttribute()  | 
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| 286 |     { | 
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| 287 | return $this->enrollmentStatus->name;  | 
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| 288 | }  | 
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| 289 | |||
| 290 | public function getProductCodeAttribute()  | 
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| 291 |     { | 
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| 292 | return $this->course->rhythm->product_code ?? ' ';  | 
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| 293 | }  | 
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| 294 | |||
| 295 | public function getAttendanceRatioAttribute()  | 
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| 296 |     { | 
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| 297 |         $courseEventIds = $this->course->events->pluck('id'); | 
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| 298 |         $attendances = $this->student->attendance()->with('event')->get()->whereIn('event_id', $courseEventIds); | 
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| 299 |         if ($attendances->count() > 0) { | 
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| 300 |             return round(100 * (($attendances->where('attendance_type_id', 1)->count() + $attendances->where('attendance_type_id', 2)->count() * 0.75) / $attendances->count())); | 
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| 301 |         } else { | 
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| 302 | return;  | 
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| 303 | }  | 
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| 304 | }  | 
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| 305 | |||
| 306 | public function getAbsenceCountAttribute()  | 
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| 307 |     { | 
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| 308 |         $courseEventIds = $this->course->events->pluck('id'); | 
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| 309 |         $attendances = $this->student->attendance()->with('event')->get()->whereIn('event_id', $courseEventIds); | 
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| 310 | |||
| 311 |         return $attendances->where('attendance_type_id', 3)->count() + $attendances->where('attendance_type_id', 4)->count(); | 
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| 312 | }  | 
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| 313 | |||
| 314 | public function getPriceAttribute()  | 
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| 315 |     { | 
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| 316 |         if ($this->total_price !== null) { | 
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| 317 | return $this->total_price / 100;  | 
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| 318 | }  | 
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| 319 | |||
| 320 | // if enabled, retrieve the default price category for the student  | 
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| 321 |         if (config('invoicing.price_categories_enabled') && $this->student?->price_category) { | 
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| 322 | $price_category = $this->student->price_category;  | 
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| 323 | |||
| 324 | return $this->course->$price_category ?? 0;  | 
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| 325 | }  | 
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| 326 | |||
| 327 | // finally, we default to the course price or 0 (because some screens need a value here, it cannot be null)  | 
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| 328 | return $this->course->price ?? 0;  | 
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| 329 | }  | 
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| 330 | |||
| 331 | public function getPriceWithCurrencyAttribute()  | 
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| 332 |     { | 
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| 333 |         if (config('app.currency_position') === 'before') { | 
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| 334 |             return config('app.currency_symbol').' '.$this->price; | 
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| 335 | }  | 
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| 336 | |||
| 337 |         return $this->price.' '.config('app.currency_symbol'); | 
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| 338 | }  | 
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| 339 | |||
| 340 | public function getBalanceAttribute()  | 
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| 341 |     { | 
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| 342 | $balance = $this->price;  | 
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| 343 | $paidAmount = 0;  | 
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| 344 | |||
| 345 |         foreach ($this->invoices as $invoice) { | 
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| 346 |             $paidAmount += $invoice->payments?->sum('value') ?? 0; | 
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| 347 | }  | 
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| 348 | |||
| 349 | $balance -= $paidAmount;  | 
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| 350 | |||
| 351 | return number_format($balance, 2);  | 
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| 352 | }  | 
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| 353 | |||
| 354 | public function cancel()  | 
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| 355 |     { | 
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| 356 | // if the enrollment had children, delete them entirely  | 
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| 357 |         if ($this->childrenEnrollments->count() > 0) { | 
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| 358 |             foreach ($this->childrenEnrollments as $child) { | 
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| 359 | $child->delete();  | 
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| 360 | }  | 
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| 361 | }  | 
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| 362 | |||
| 363 | // delete attendance records related to the enrollment  | 
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| 364 |         $attendances = $this->course->attendance->where('student_id', $this->student->id); | 
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| 365 | Attendance::destroy($attendances->map(fn ($item, $key) => $item->id));  | 
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| 366 | |||
| 367 |         foreach ($this->course->children as $child) { | 
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| 368 |             $attendances = $child->attendance->where('student_id', $this->student->id); | 
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| 369 | Attendance::destroy($attendances->map(fn ($item, $key) => $item->id));  | 
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| 370 | }  | 
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| 371 | |||
| 372 | $this->delete();  | 
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| 373 | }  | 
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| 374 | |||
| 375 | public function getTotalPaidPriceAttribute()  | 
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| 376 |     { | 
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| 377 | $total = 0;  | 
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| 378 |         foreach ($this->invoices as $invoice) { | 
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| 379 | $total += $invoice->total_price;  | 
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| 380 | }  | 
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| 381 | |||
| 382 | return $total;  | 
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| 383 | }  | 
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| 384 | |||
| 385 | public function setTotalPriceAttribute($value)  | 
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| 386 |     { | 
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| 387 | $this->attributes['total_price'] = $value * 100;  | 
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| 388 | }  | 
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| 389 | |||
| 390 | public function getHasBookForCourseAttribute()  | 
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| 406 | }  | 
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| 407 | }  | 
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| 408 | }  | 
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| 409 |