integration of the new MVC for subproject_addresses

app/controllers/subproject_addresses_controller.rb

@@ -0,0 +1,49 @@
+class SubprojectAddressesController < ApplicationController
+  before_action :set_subproject_address, only: %i[show edit update destroy]
+
+  def index
+    @subproject_addresses = SubprojectAddress.all
+  end
+
+  def show
+  end
+
+  def new
+    @subproject_address = SubprojectAddress.new
+  end
+
+  def edit
+  end
+
+  def create
+    @subproject_address = SubprojectAddress.new(subproject_address_params)
+    if @subproject_address.save
+      redirect_to @subproject_address, notice: "Adresse was successfully created."
+    else
+      render :new, status: :unprocessable_entity
+    end
+  end
+
+  def update
+    if @subproject_address.update(subproject_address_params)
+      redirect_to @subproject_address, notice: "Adresse was successfully updated."
+    else
+      render :edit, status: :unprocessable_entity
+    end
+  end
+
+  def destroy
+    @subproject_address.destroy
+    redirect_to subproject_addresses_url, notice: "Adresse was successfully destroyed."
+  end
+
+  private
+
+  def set_subproject_address
+    @subproject_address = SubprojectAddress.find(params[:id])
+  end
+
+  def subproject_address_params
+    params.require(:subproject_address).permit(:subproject_id, :streetname, :zipcode, :city, :country)
+  end
+end

app/models/subproject_address.rb

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+class SubprojectAddress < ApplicationRecord
+  belongs_to :subproject
+
+  validates :streetname, :zipcode, :city, :country, presence: true
+end

app/views/subproject_addresses/_form.html.erb

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+<%= form_with(model: subproject_address) do |form| %>
+  <% if subproject_address.errors.any? %>
+    <div style="color: red">
+      <h2><%= pluralize(subproject_address.errors.count, "error") %> prohibited this client from being saved:</h2>
+
+      <ul>
+        <% subproject_address.errors.each do |error| %>
+          <li><%= error.full_message %></li>
+        <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <% [:streetname, :zipcode, :city, :country].each do |attrib| %>
+  <div>
+    <%= form.label attrib, style: "display: block" %>
+    <%= form.text_field attrib %>
+  </div>
+  <% end %>
+
+  <div>
+    <%= form.submit %>
+  </div>
+<% end %>

app/views/subproject_addresses/_subproject_address.erb

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+<div id="<%= dom_id subproject_address %>">
+  <p>
+    <strong>Streetname:</strong>
+    <%= subproject_address.streetname %>
+  </p>
+
+  <p>
+    <strong>Zipcode:</strong>
+    <%= subproject_address.zipcode %>
+  </p>
+
+  <p>
+    <strong>City:</strong>
+    <%= subproject_address.city %>
+  </p>
+
+  <p>
+    <strong>Country:</strong>
+    <%= subproject_address.country %>
+  </p>
+
+</div>

app/views/subproject_addresses/edit.html.erb

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+<% content_for :title, "Editing subproject address" %>
+
+<h1>Editing subproject address</h1>
+
+<%= render "form", subproject_address: @subproject_address %>
+
+<br>
+
+<div>
+  <%= link_to "Show this subproject address", @subproject_address %> |
+  <%= link_to "Back to subproject addresses", subproject_addresses_path %>
+</div>

app/views/subproject_addresses/index.html.erb

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+<p style="color: green"><%= notice %></p>
+
+<% content_for :title, "Subproject addresses" %>
+
+<h1>Subproject addresses</h1>
+
+<div id="subproject_addresses">
+  <% @subproject_addresses.each do |subproject_address| %>
+    <%= render subproject_address %>
+    <p>
+      <%= link_to "Show this subproject address", subproject_address %>
+    </p>
+  <% end %>
+</div>
+
+<%= link_to "New subproject address", new_subproject_address_path %>
+
+<%= link_to "Back to main", "/" %>

app/views/subproject_addresses/new.html.erb

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+<% content_for :title, "New subproject address" %>
+
+<h1>New subproject address</h1>
+
+<%= render "form", subproject_address: @subproject_address %>
+
+<br>
+
+<div>
+  <%= link_to "Back to subproject addresses", subproject_addresses_path %>
+</div>

app/views/subproject_addresses/show.html.erb

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+<p style="color: green"><%= notice %></p>
+
+<%= render @subproject_address %>
+
+<div>
+  <%= link_to "Edit this subproject address", edit_subproject_address_path(@subproject_address) %> |
+  <%= link_to "Back to subproject addresses", subproject_addresses_path %>
+
+  <%= button_to "Destroy this subproject address", @subproject_address, method: :delete %>
+</div>