Fixed migrations

app/Course.php

     }
 
     public function semesters() {
-        // dd($this->hasManyThrough(Semester::class, Section::class, 'course_id', 'code'));
-        // dd($this->hasManyThrough(Semester::class, Section::class, 'course_id', 'code')->get());
         return $this->belongsToMany(Semester::class, 'sections');
     }
 

app/Http/Controllers/SectionController.php

                 'code'          => str_pad($i, 3, '0', STR_PAD_LEFT)
             ]);
         }
-        return redirect('/course');
+        return redirect()->back();
     }
 
     /**

app/Professor.php

     public function getAcademicLoad(Semester $semester) {
         $prof_sections = $this->sections->where('semester_code', '=', $semester->code);
         return $prof_sections->reduce(function ($carry, $section) {
-            return $carry + ($section->pivot->percent ?? 1.0) * (($section->credits ?? 0.0) + $section->extra_credits);
+            return $carry + (($section->pivot->percent ?? 100.0) / 100.0) * (($section->credits ?? 0.0) + $section->extra_credits);
         }, 0);
     }
 

database/migrations/2019_07_07_183013_create_departments_table.php

 
         DB::table('departments')->insert(
             array(
-                array('id' => '0','name' => 'default'),
                 array('id' => '1','name' => 'BIOL'),
                 array('id' => '4','name' => 'CIAM'),
                 array('id' => '2','name' => 'FISI'),
                 array('id' => '3','name' => 'MATE'),
                 array('id' => '5','name' => 'PGCN'),
-                array('id' => '6','name' => 'QUIM')
+                array('id' => '6','name' => 'QUIM'),
+                array('id' => '7','name' => 'default'),
             ));
     }
 

database/migrations/2019_07_07_190000_create_courses_table.php

             $table->bigIncrements('id');
             $table->char('code', 8)->unique();
             $table->string('title');
-            $table->unsignedBigInteger('dept_id');
+            $table->unsignedBigInteger('dept_id')->default(7);
             $table->string('syllabus')->nullable();
 
-            $table->foreign('dept_id')->references('id')->on('departments');
+            $table->foreign('dept_id')->references('id')->on('departments')->onUpdate('cascade');
         });
     }
 

database/migrations/2019_07_07_191614_create_sections_table.php

 
 
             $table->foreign('semester_code')->references('code')->on('semesters');
-            $table->foreign('course_id')->references('id')->on('courses');
+            $table->foreign('course_id')->references('id')->on('courses')->onUpdate('cascade');
 
             $table->unique(['semester_code', 'course_id', 'code']);
         });

database/migrations/2019_07_07_230040_create_professors_table.php

     {
         Schema::create('professors', function (Blueprint $table) {
             $table->bigIncrements('id');
-            $table->string('num_prof', 16);
+            $table->string('num_prof', 16)->unique()->nullable();
             $table->string('first_name');
             $table->string('last_name');
             $table->string('system_name')->nullable();
             $table->enum('type', ['plantilla', 'contrato', 'ta'])->nullable();
             $table->unsignedBigInteger('dept_id')->default(0);
 
-            $table->foreign('dept_id')->references('id')->on('departments');
+            $table->foreign('dept_id')->references('id')->on('departments')->onUpdate('cascade');
         });
     }
 

database/migrations/2019_07_07_231850_create_professor_semester_table.php

             $table->decimal('admin_load')->nullable();
             $table->decimal('investigative_load')->nullable();
 
-            $table->foreign('professor_id')->references('id')->on('professors');
+            $table->foreign('professor_id')->references('id')->on('professors')->onUpdate('cascade');
             $table->foreign('semester_code')->references('code')->on('semesters');
 
             $table->unique(['professor_id', 'semester_code']);

database/migrations/2019_07_07_231913_create_professor_section_table.php

             $table->string('schedule')->nullable();
             $table->float('eval')->nullable();
 
-            $table->foreign('professor_id')->references('id')->on('professors');
-            $table->foreign('section_id')->references('id')->on('sections');
+            $table->foreign('professor_id')->references('id')->on('professors')->onUpdate('cascade');
+            $table->foreign('section_id')->references('id')->on('sections')->onDelete('cascade')->onUpdate('cascade');
 
             $table->unique(['professor_id', 'section_id']);
         });

public/mix-manifest.json

     "/js/app.js": "/js/app.js",
     "/css/app.css": "/css/app.css",
     "/js/course.js": "/js/course.js",
-    "/js/createPDF.js": "/js/createPDF.js",
     "/js/dashboard.js": "/js/dashboard.js",
     "/js/prof.js": "/js/prof.js"
 }

resources/views/courses/show.blade.php

                                 </tr>
                             </thead>
                             <tbody class="mdc-data-table__content">
-                                @foreach ($semester->sections->where('course_id', '=', $course->id) as $section)
+                                @foreach ($semester->sections->where('course_id', '=', $course->id)->sortBy('code') as $section)
                                     <tr class="mdc-data-table__row">
                                         <td class="mdc-data-table__cell" @guest style="display:none;" @endguest>
                                             <button class="mdc-icon-button material-icons" data-toggle="modal" data-target="#modal-section-edit" data-section-id="{{ $section->id }}">edit</button>
                                         </td>
                                         <td class="mdc-data-table__cell">
                                             {{-- TODO: Add buton for uploading syllabus if admin --}}
-                                            <a href="{{ $section->syllabus }}">PDF</a>
+                                            @if (!is_null($section->syllabus))
+                                                <a href="{{ $section->syllabus }}">PDF</a>
+                                            @else
+                                                n/a
+                                            @endif
                                         </td>
                                         <td class="mdc-data-table__cell mdc-data-table__cell--numeric">
                                             @if (!is_null($section->credits))

routes/web.php

     return view('welcome');
 });
 
-Route::resource('course', 'CourseController');
-Route::resource('professor', 'ProfessorController');
-Route::resource('section', 'SectionController');
+Route::resource('course', 'CourseController')->except([
+    'create', 'edit'
+]);
+Route::resource('professor', 'ProfessorController')->except([
+    'create', 'edit'
+]);
+Route::resource('section', 'SectionController')->only([
+    'store', 'update', 'destroy'
+]);
 
 // Auth::routes();
 

webpack.mix.js

     .js('resources/js/prof.js', 'public/js')
     .js('resources/js/course.js', 'public/js')
     .js('resources/js/dashboard.js', 'public/js')
-    .js('resources/js/createPDF.js', 'public/js')
     .sass('resources/sass/app.scss', 'public/css', {
         includePaths: [path.resolve(__dirname, 'node_modules')]
     });