Rewrite food apps, new feature some changes to model

apps/food/templates/food/food_detail.html

@@ -0,0 +1,48 @@
+{% extends "base.html" %}
+{% comment %}
+Copyright (C) by BDE ENS Paris-Saclay
+SPDX-License-Identifier: GPL-3.0-or-later
+{% endcomment %}
+{% load i18n crispy_forms_tags %}
+
+{% block content %}
+<div class="card bg-white mb-3">
+  <h3 class="card-header text-center">
+    {{ title }} {{ food.name }}
+  </h3>
+  <div class="card-body">
+    <ul>
+      {% for field, value in fields %}
+      <li> {{ field }} : {{ value }}</li>
+      {% endfor %}
+      {% if meals %}
+      <li> {% trans "Contained in" %} : 
+      {% for meal in meals %}
+      <a href="{% url "food:transformedfood_view" pk=meal.pk %}">{{ meal.name }}</a>{% if not forloop.last %},{% endif %} 
+      {% endfor %}
+      </li>
+      {% endif %}
+      {% if foods %}
+      <li> {% trans "Contain" %} : 
+      {% for food in foods %}
+        <a href="{% url "food:food_view" pk=food.pk %}">{{ food.name }}</a>{% if not forloop.last %},{% endif %}
+      {% endfor %}
+      </li>
+      {% endif %}
+    </ul>
+      {% if update %}
+	<a class="btn btn-sm btn-secondary" href="{% url "food:food_update" pk=food.pk %}">
+	  {% trans "Update" %}
+	</a>
+      {% endif %}
+      {% if add_ingredient %}
+	<a class="btn btn-sm btn-primary" href="{% url "food:add_ingredient" pk=food.pk %}">
+	  {% trans "Add to a meal" %}
+	</a>
+      {% endif %}
+	<a class="btn btn-sm btn-primary" href="{% url "food:food_list" %}">
+	  {% trans "Return to the food list" %}
+	</a>
+  </div>
+</div>
+{% endblock %}