| Total Complexity | 46 |
| Total Lines | 269 |
| Duplicated Lines | 0 % |
| Changes | 8 | ||
| Bugs | 3 | Features | 0 |
Complex classes like Student 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 Student, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 23 | class Student extends Model implements HasMedia |
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| 24 | { |
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| 25 | use CrudTrait; |
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| 26 | use InteractsWithMedia; |
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| 27 | use LogsActivity; |
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| 28 | |||
| 29 | protected $dispatchesEvents = [ |
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| 30 | 'deleting' => StudentDeleting::class, |
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| 31 | 'updated' => StudentUpdated::class, |
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| 32 | ]; |
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| 33 | |||
| 34 | public $timestamps = true; |
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| 35 | |||
| 36 | protected $guarded = []; |
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| 37 | |||
| 38 | public $incrementing = false; |
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| 39 | |||
| 40 | protected $with = ['user', 'phone', 'institution', 'profession']; |
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| 41 | |||
| 42 | protected $appends = ['email', 'name', 'firstname', 'lastname', 'student_age', 'student_birthdate', 'is_enrolled']; |
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| 43 | |||
| 44 | protected static bool $logUnguarded = true; |
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| 45 | |||
| 46 | public function scopeEnrolled($query) |
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| 47 | { |
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| 48 | return $query->whereHas('enrollments', function ($q) { |
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| 49 | return $q->whereHas('course', function ($q) { |
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| 50 | return $q->where('period_id', Period::get_default_period()->id); |
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| 51 | }); |
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| 52 | }); |
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| 53 | } |
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| 54 | |||
| 55 | public function scopeNewInPeriod(Builder $query, int $periodId) |
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| 56 | { |
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| 57 | return $query->whereIn('id', Period::find($periodId)->newStudents()->pluck(['student_id'])->toArray()); |
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| 58 | } |
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| 59 | |||
| 60 | public function registerMediaConversions(Media $media = null): void |
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| 61 | { |
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| 62 | $this->addMediaConversion('thumb') |
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| 63 | ->fit(Manipulations::FIT_MAX, 1200, 1200) |
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| 64 | ->optimize(); |
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| 65 | } |
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| 66 | |||
| 67 | /** relations */ |
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| 68 | public function user() |
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| 69 | { |
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| 70 | return $this->belongsTo(User::class, 'id', 'id'); |
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| 71 | } |
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| 72 | |||
| 73 | public function attendance() |
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| 74 | { |
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| 75 | return $this->hasMany(Attendance::class); |
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| 76 | } |
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| 77 | |||
| 78 | public function periodAbsences(Period $period = null) |
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| 79 | { |
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| 80 | if ($period == null) { |
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| 81 | $period = Period::get_default_period(); |
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| 82 | } |
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| 83 | |||
| 84 | return $this->hasMany(Attendance::class) |
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| 85 | ->where('attendance_type_id', 4) // absence |
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| 86 | ->whereHas('event', fn ($q) => $q->whereHas('course', fn ($c) => $c->where('period_id', $period->id))); |
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| 87 | } |
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| 88 | |||
| 89 | public function periodAttendance(Period $period = null) |
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| 90 | { |
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| 91 | if ($period == null) { |
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| 92 | $period = Period::get_default_period(); |
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| 93 | } |
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| 94 | |||
| 95 | return $this->hasMany(Attendance::class) |
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| 96 | ->whereHas('event', fn ($q) => $q->whereHas('course', fn ($c) => $c->where('period_id', $period->id))); |
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| 97 | } |
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| 98 | |||
| 99 | public function contacts() |
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| 100 | { |
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| 101 | return $this->hasMany(Contact::class, 'student_id'); |
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| 102 | } |
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| 103 | |||
| 104 | public function comments() |
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| 105 | { |
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| 106 | return $this->morphMany(Comment::class, 'commentable'); |
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| 107 | } |
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| 108 | |||
| 109 | public function phone() |
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| 110 | { |
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| 111 | return $this->morphMany(PhoneNumber::class, 'phoneable'); |
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| 112 | } |
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| 113 | |||
| 114 | public function enrollments() |
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| 115 | { |
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| 116 | return $this->hasMany(Enrollment::class) |
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| 117 | ->with('course')->orderByDesc('course_id'); |
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| 118 | } |
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| 119 | |||
| 120 | public function leadType() |
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| 121 | { |
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| 122 | return $this->belongsTo(LeadType::class); |
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| 123 | } |
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| 124 | |||
| 125 | public function institution() |
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| 126 | { |
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| 127 | return $this->belongsTo(Institution::class); |
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| 128 | } |
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| 129 | |||
| 130 | public function profession() |
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| 131 | { |
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| 132 | return $this->belongsTo(Profession::class); |
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| 133 | } |
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| 134 | |||
| 135 | public function books() |
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| 136 | { |
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| 137 | return $this->belongsToMany(Book::class)->withPivot('id', 'code', 'status_id', 'expiry_date'); |
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| 138 | } |
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| 139 | |||
| 140 | /** attributes */ |
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| 141 | public function getFirstnameAttribute(): string |
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| 142 | { |
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| 143 | return $this->user ? Str::title($this->user->firstname) : ''; |
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| 144 | } |
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| 145 | |||
| 146 | public function getLastnameAttribute(): string |
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| 147 | { |
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| 148 | if ($this->user) { |
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| 149 | return Str::upper($this->user->lastname); |
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| 150 | } |
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| 151 | |||
| 152 | return ''; |
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| 153 | } |
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| 154 | |||
| 155 | public function getEmailAttribute(): ?string |
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| 156 | { |
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| 157 | return $this?->user?->email; |
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| 158 | } |
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| 159 | |||
| 160 | public function getNameAttribute(): string |
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| 161 | { |
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| 162 | return $this->user ? "{$this->firstname} {$this->lastname}" : ''; |
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| 163 | } |
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| 164 | |||
| 165 | public function getStudentAgeAttribute() |
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| 166 | { |
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| 167 | return $this->birthdate ? Carbon::parse($this->birthdate)->age.' '.__('years old') : ''; |
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| 168 | } |
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| 169 | |||
| 170 | public function getStudentBirthdateAttribute() |
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| 171 | { |
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| 172 | return $this->birthdate ? Carbon::parse($this->birthdate)->locale(App::getLocale())->isoFormat('LL') : ''; |
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| 173 | } |
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| 174 | |||
| 175 | public function getIsEnrolledAttribute() |
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| 176 | { |
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| 177 | // if the student is currently enrolled |
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| 178 | if ($this->enrollments()->whereHas('course', fn ($q) => $q->where('period_id', Period::get_default_period()->id))->count() > 0) { |
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| 179 | return 1; |
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| 180 | } |
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| 181 | |||
| 182 | return false; |
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| 183 | } |
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| 184 | |||
| 185 | public function getLeadStatusNameAttribute() |
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| 188 | } |
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| 189 | |||
| 190 | public function computedLeadStatus() |
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| 191 | { |
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| 192 | // if the student is currently enrolled, they are CONVERTED |
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| 193 | if ($this->is_enrolled) { |
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| 194 | return 1; |
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| 195 | } |
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| 196 | |||
| 197 | // if the student has a special status, return it |
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| 198 | if ($this->leadType != null) { |
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| 199 | return $this->leadType->id; |
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| 200 | } |
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| 201 | |||
| 202 | // if the student was previously enrolled, they must be potential students |
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| 203 | if ($this->has('enrollments')) { |
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| 204 | return 4; |
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| 205 | } |
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| 206 | |||
| 207 | // otherwise, their status cannot be determined and should be left blank |
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| 208 | return null; |
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| 209 | } |
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| 210 | |||
| 211 | /** functions */ |
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| 212 | |||
| 213 | /** |
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| 214 | * enroll the student in a course. |
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| 215 | * If the course has any children, we also enroll the student in the children courses. |
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| 216 | */ |
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| 217 | public function enroll(Course $course): int |
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| 218 | { |
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| 219 | // avoid duplicates by retrieving an potential existing enrollment for the same course |
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| 220 | $enrollment = Enrollment::firstOrCreate( |
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| 221 | [ |
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| 222 | 'student_id' => $this->id, |
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| 223 | 'course_id' => $course->id, |
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| 224 | ], |
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| 225 | [ |
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| 226 | 'responsible_id' => backpack_user()->id ?? 1, |
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| 227 | ] |
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| 228 | ); |
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| 229 | |||
| 230 | // if the course has children, enroll in children as well. |
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| 231 | if ($course->children_count > 0) { |
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| 232 | foreach ($course->children as $children_course) { |
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| 233 | Enrollment::firstOrCreate( |
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| 234 | [ |
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| 235 | 'student_id' => $this->id, |
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| 236 | 'course_id' => $children_course->id, |
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| 237 | 'parent_id' => $enrollment->id, |
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| 238 | ], |
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| 239 | [ |
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| 240 | 'responsible_id' => backpack_user()->id ?? 1, |
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| 241 | ] |
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| 242 | ); |
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| 243 | } |
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| 244 | } |
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| 245 | |||
| 246 | $this->update(['lead_type_id' => null]); // fallback to default (converted) |
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| 247 | |||
| 248 | // to subscribe the student to mailing lists and so on |
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| 249 | $listId = config('mailing-system.mailerlite.activeStudentsListId'); |
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| 250 | LeadStatusUpdatedEvent::dispatch($this, $listId); |
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| 251 | |||
| 252 | foreach ($this->contacts as $contact) { |
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| 253 | LeadStatusUpdatedEvent::dispatch($contact, $listId); |
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| 254 | } |
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| 255 | |||
| 256 | return $enrollment->id; |
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| 257 | } |
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| 258 | |||
| 259 | /** SETTERS */ |
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| 260 | public function setFirstnameAttribute($value) |
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| 261 | { |
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| 262 | $this->user->update(['firstname' => $value]); |
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| 263 | } |
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| 264 | |||
| 265 | public function setLastnameAttribute($value) |
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| 266 | { |
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| 267 | $this->user->update(['lastname' => $value]); |
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| 268 | } |
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| 269 | |||
| 270 | public function setEmailAttribute($value) |
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| 271 | { |
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| 272 | $this->user->update(['email' => $value]); |
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| 273 | } |
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| 274 | |||
| 275 | public function getImageAttribute(): ?string |
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| 276 | { |
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| 277 | return $this->getMedia('profile-picture')->last()?->getUrl('thumb'); |
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| 278 | } |
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| 279 | |||
| 280 | public function setImageAttribute($value) |
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| 292 | } |
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| 293 | } |
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| 294 | } |
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| 295 |