fix: views for students

app/models/section.rb

@@ -11,6 +11,10 @@ class Section < ApplicationRecord
 
   before_save :set_weekdays
 
+  def to_s
+    "#{teacher.name}: #{subject.name} #{start_at}-#{end_at} #{room.name}"
+  end
+
   def set_weekdays
     case repeat_type
     when 'everyday'

app/views/students/_form.html.slim

@@ -1,4 +1,4 @@
-= form_with(model: student, local: true) do |form|
+= simple_form_for(student) do |f|
   - if student.errors.any?
     #error_explanation
       h2
@@ -8,11 +8,8 @@
         - student.errors.full_messages.each do |message|
           li
             = message
-  .field
-    = form.label :first_name
-    = form.text_field :first_name
-  .field
-    = form.label :last_name
-    = form.text_field :last_name
-  .actions
-    = form.submit
+  = f.input :first_name
+  = f.input :last_name
+  = f.association :sections
+
+  = f.button :submit

app/views/students/show.html.slim

@@ -1,13 +1,21 @@
 p#notice
   = notice
-p
-  strong
+dl.row
+  dt.col-sm-2
     | First name:
-  = @student.first_name
-p
-  strong
+  dd = @student.first_name
+
+  dt.col-sm-2
     | Last name:
-  = @student.last_name
+  dd = @student.last_name
+
+  dt.col-sm-2
+    | Sections:
+  dd.col-sm-10
+    ul
+      - @student.sections.each do |section|
+        li
+          = link_to section.to_s, section_path(section)
 = link_to 'Edit', edit_student_path(@student)
-|  | 
+|  |
 = link_to 'Back', students_path