Browse Source

added new buttons and einen artikel bearbeiten

master
Esther Kleinhenz 6 years ago
parent
commit
5ec22d5ff9

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application/templates/post_detail.html View File

{% extends 'base.html' %}{% block content %} {% extends 'base.html' %}{% block content %}
{% load hitcount_tags %}
{% load hitcount_tags %}
<div class="post"> <div class="post">


{% if post.published_date %} {% if post.published_date %}
<a class="btn btn-outline-dark" href="{% url 'post_publish' pk=post.pk %}">Publish</a> <a class="btn btn-outline-dark" href="{% url 'post_publish' pk=post.pk %}">Publish</a>
{% endif %} {% if user.is_staff and user == post.author %} {% endif %} {% if user.is_staff and user == post.author %}
<a class="btn btn-outline-dark" href="{% url 'post_edit' pk=post.pk %}"> <a class="btn btn-outline-dark" href="{% url 'post_edit' pk=post.pk %}">
<span class="glyphicon glyphicon-pencil">Edit</span>
<span class="glyphicon glyphicon-pencil">Bearbeiten</span>
</a> </a>
<a class="btn btn-outline-dark" href="{% url 'post_remove' pk=post.pk %}"> <a class="btn btn-outline-dark" href="{% url 'post_remove' pk=post.pk %}">
<span class="glyphicon glyphicon-remove">Remove</span>
<span class="glyphicon glyphicon-remove">Löschen</span>
</a> </a>
{% endif %} {% endif %}
<h1>{{ post.title }}</h1> <h1>{{ post.title }}</h1>
<p>{{ post.text|linebreaksbr }}</p> <p>{{ post.text|linebreaksbr }}</p>
<p> <p>
Tags:
Tags:
{% for tag in post.tags.all %} {% for tag in post.tags.all %}
<a href="{% url 'blog_search_list_view' %}">{{ tag.name }} </a> <a href="{% url 'blog_search_list_view' %}">{{ tag.name }} </a>
{% if not forloop.last %}, {% endif %}
{% if not forloop.last %}, {% endif %}
{% endfor %} {% endfor %}
</p> </p>
<p> <p>

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application/templates/post_edit.html View File

{% extends 'base.html' %} {% extends 'base.html' %}


{% block content %} {% block content %}
<h1>New post</h1>
<h1>Artikel-Editor</h1>
<form method="POST" class="post-form">{% csrf_token %} <form method="POST" class="post-form">{% csrf_token %}
{{ form.as_p }} {{ form.as_p }}
<button type="submit" class="save btn btn-outline-dark">Save</button>
<button type="submit" class="save btn btn-outline-dark">Sichern</button>
</form> </form>
{% endblock %} {% endblock %}

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application/templates/post_list.html View File

{% extends 'base.html' %} {% block content %} {% extends 'base.html' %} {% block content %}
{% if tag %} Posts tagged with "{{ tag.name }}" {% endif %} {% if tag %} Posts tagged with "{{ tag.name }}" {% endif %}
{% if messages %}
<div class="messages">
{% for message in messages %}
<p {% if message.tags %} class="{{ message.tags }}" {% endif %}>{{ message }}</p>
{% endfor %}
</div>
{% endif %}
{% for post in posts %} {% for post in posts %}
<div class="post"> <div class="post">
<div class="date"> <div class="date">

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application/views.py View File

@staff_member_required @staff_member_required
def post_remove(request, pk): def post_remove(request, pk):
post = get_object_or_404(Post, pk=pk) post = get_object_or_404(Post, pk=pk)
messages.info(request, 'Der Artikel "' + post.title + '" wurde gelöscht')
post.delete() post.delete()
return redirect('post_list') return redirect('post_list')



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doc/bachelorarbeit_EstherKleinhenz/.texpadtmp/bachelorabeit_EstherKleinhenz.aux View File

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doc/bachelorarbeit_EstherKleinhenz/.texpadtmp/bachelorabeit_EstherKleinhenz.bbl View File

\newblock \newblock
https://www.datacamp.com/community/tutorials/pep8-tutorial-python-code. https://www.datacamp.com/community/tutorials/pep8-tutorial-python-code.


\bibitem[Dja18]{Djangogirls}
Djangogirls.
\newblock Creating a blog post model.
\newblock 2018.
\newblock https://tutorial.djangogirls.org/en/django\_models/.

\bibitem[FMS17]{Schlede} \bibitem[FMS17]{Schlede}
Andreas~Donner Frank-Michael~Schlede, Thomas~Bär. Andreas~Donner Frank-Michael~Schlede, Thomas~Bär.
\newblock Was ist ldap (lightweight directory access protocol)? \newblock Was ist ldap (lightweight directory access protocol)?
\newblock 2018. \newblock 2018.
\newblock https://docs.djangoproject.com/en/2.1/ref/contrib/auth/. \newblock https://docs.djangoproject.com/en/2.1/ref/contrib/auth/.


\bibitem[Fou18b]{Python}
\bibitem[Fou18b]{Django-2}
Django~Software Foundation.
\newblock Modelforms - the save() methode.
\newblock 2018.
\newblock
https://docs.djangoproject.com/en/dev/topics/forms/modelforms/\#the-save-method.

\bibitem[Fou18c]{Python}
Python~Software Foundation. Python~Software Foundation.
\newblock Virtual environments and packages. \newblock Virtual environments and packages.
\newblock 2018. \newblock 2018.
\newblock \newblock
https://blog.twitter.com/developer/en\_us/a/2011/bootstrap-twitter.html. https://blog.twitter.com/developer/en\_us/a/2011/bootstrap-twitter.html.


\bibitem[Ott12]{Otto-2}
Mark Otto.
\newblock Say hello to bootstrap 2.0.
\newblock 2012.
\newblock
https://web.archive.org/web/20120203191214/https://dev.twitter.com/blog/say-hello-to-bootstrap-2.

\bibitem[Sha09]{Shabda} \bibitem[Sha09]{Shabda}
Shabda. Shabda.
\newblock Understanding decorators. \newblock Understanding decorators.

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doc/bachelorarbeit_EstherKleinhenz/.texpadtmp/bachelorabeit_EstherKleinhenz.blg View File

: @article{Ong : @article{Ong
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: @article{Django
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Warning--empty journal in Shabda Warning--empty journal in Shabda
Warning--empty journal in Shelest Warning--empty journal in Shelest
Warning--empty journal in Solutions Warning--empty journal in Solutions
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Warning--empty publisher in Weigend Warning--empty publisher in Weigend
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\T1/aer/m/n/12 https://www.datacamp.com/community/tutorials/pep8-tutorial-python- \T1/aer/m/n/12 https://www.datacamp.com/community/tutorials/pep8-tutorial-python-
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\end{figure} \end{figure}


\subsection{Verwalten} \subsection{Verwalten}
Das Verwalten der Artikel soll von berechtigten Nutzern hauptsächlich im Front-end stattfinden. Der Vorgang des Erstellens, des Löschens und des Editierens der einzelnen Einträge wird im Folgenden konkretisiert.
Das Verwalten der Artikel soll von berechtigten Nutzern im Front-end stattfinden, hingegen die prozessuale Logik im Code-Back-end passiert. Der Vorgang des Erstellens, des Löschens und des Editierens der einzelnen Einträge wird im Folgenden konkretisiert.
\\
\\
Einen neuen Artikel erstellen:

Das \glqq +\grqq\ in der Menüleiste leitet den Benutzer zu einer Unterseite. Hier können alle Felder befüllt werden, die im PostForm-Formular in der Datei forms.py festgelegt wurden. Dazu gehören der Titel und der Text, die als Pflichtfelder gelten. Das Feld \glqq Tags \grqq\ muss ebenfalls mindestens einen Wert enthalten um die Validierung der Eingaben sichern zu können. Eine Ausnahme bildet das Datum der Veröffentlichung. Bleibt das Feld leer so wird der Post automatisch der Liste der Entwürfe beigefügt.


Ein neuer Artikel wird erstellt. Das \glqq +\grqq\ in der Menüleiste leitet den Benutzer zu einer Unterseite. Hier können alle Felder befüllt werden, die im PostForm-Formular in der Datei forms.py festgelegt wurden. Dazu gehören der Titel und der Text, die als Pflichtfelder gelten. Das Feld \glqq Tags \grqq\ muss ebenfalls mindestens einen Wert enthalten um die Validierung der Eingaben sichern zu können. Eine Ausnahme bildet das Datum der Veröffentlichung. Bleibt das Feld leer so wird der Post automatisch der Liste der Entwürfe beigefügt.
Speichert der Benutzer nun den Artikel, so werden im Back-end die Daten wir folgt verarbeitet. In der View \glqq post\_new \grqq\ wird zunächst die Validität aller Eingaben geprüft. Falls dies der Fall ist, wird der Post als Objekt zurückgegeben, jedoch durch das optionale \textit{Keywort} \glqq commit=false \grqq\ noch nicht in der Datenbank abgelegt. Das ist notwendig um dem Objekt spezifische Informationen mitzugeben. In diesem Kontext wird der aktuell eingeloggte User als Autor hinterlegt. Jedoch birgt die Vorgehensweise eine Problematik im Speichervorgang einer \textit{ManyToMany} Relation zwischen zwei Modellen. Da Informationen nur auf ein bereits in der Datenbank bestehendes Objekt gesichert werden können ist dies zunächst nicht möglich (vgl. [Fou18b]).
Im Prototyp nutzt das \textit{PostModel} die \textit{ManyToMany} Konnektivität mit dem Modell des TaggabelManagers. Um die Eingabe des Tag-Felds trotzdem im neuen Artikel speichern zu können, wird zunächst das Objekt gespeichert, um nachdem explizit das von Django zur Verfügung gestellte \glqq form.save\_m2m() \grqq\ aufrufen zu können. Dieser Befehl zwingt die Daten der \textit{ManyToMany} Relation zu speichern.

Die eindeutige Zuordnung der Eingabe im Front-end zur Verarbeitung der Artikel im Back-end ist mit einem \textit{Primary Key} realisiert. Das \textit{PostModel} bekommt beim Anlegen keinen solchen Schlüssel zu einem Feld zugewiesen. Ist das der Fall, erstellt Django automatisiert beim Speichern der Tabelle diesen als \textit{AutoField} im Feld \glqq Id \grqq\ und zählt bei jedem neu Erstellen eines Objekts hoch. Somit sind alle Objekte eindeutig zuordenbar und können mit dem Kommando \glqq post.pk \grqq\ jederzeit aufgerufen werden.
\\
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Einen bereits vorhandenen Artikel löschen:

In der Detailansicht eines Artikels ist es möglich diesen durch klicken auf den Button \glqq Löschen \grqq\ zu entfernen. Die View \glqq post\_remove \grqq\ selektiert über den im Template mitgegebenen \textit{Primary Key} das Objekt und speichert dies in der Variable \glqq post\grqq\. Um dem Benutzer nochmals mitteilen zu können, welchen Artikel er entfernt hat, wird vor dem Löschen eine Nachricht mit dem Titel dessen generiert. Nachdem wird dieser gelöscht (post.remove()) und eine Umleitung am Ende der View-Definition schickt den Benutzer auf die Seite der Artikelliste. Hier wird die vorher erstellte Nachricht aus informellen Gründen eingebunden.
\\
\\
Einen bereits vorhandenen Artikel bearbeiten:


Die eindeutige Zuordnung der Eingabe im Front-end zur Verarbeitung der verschiedenen Artikel im Back-end ist mit einem \textit{Primary Key} realisiert. In der View \glqq post\_new \grqq\ wird zunächst die Validität aller Eingaben geprüft. Falls dies der Fall ist, wird der Post als Objekt zurückgegeben, jedoch durch das optionale \textit{Keywort} \glqq commit=false \grqq\ noch nicht in der Datenbank abgelegt. Das ist notwendig um dem Objekt spezifische Informationen mitzugeben. In diesem Kontext wird der aktuell eingeloggte User als Autor hinterlegt. Jedoch birgt die Vorgehensweise eine Problematik im Speichervorgang einer \textit{ManyToMany} Relation zwischen zwei Modellen. Da Informationen nur auf ein bereits in der Datenbank bestehendes Objekt gesichert werden können ist dies zunächst nicht möglich.
Im Prototyp nutzt das \textit{PostModel} die \textit{ManyToMany} Konnektivität mit dem Modell des TaggabelManagers. Um die Eingabe des Tag-Felds trotzdem im neuen Artikel speichern zu können, wird zunächst das Objekt gespeichert, um nachdem explizit das von Django zur Verfügung gestellte \glqq form.save\_m2m() \grqq\ aufrufen zu können.
--- pk erklären
Ähnlich wie beim Löschen eines Artikel, kann man diesen in der Detailansicht bearbeiten. Mit dem Betätigen des Bearbeiten-Buttons wird der User auf den Artikel-Editor weitergeleitet.




\subsection{Abonnieren} \subsection{Abonnieren}

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note = "https://github.com/twbs/bootstrap" note = "https://github.com/twbs/bootstrap"
} }
@article{Otto,
@article{Otto-2,
author = "Mark Otto", author = "Mark Otto",
title = "Say hello to Bootstrap 2.0", title = "Say hello to Bootstrap 2.0",
year = "2012", year = "2012",
note = "https://docs.djangoproject.com/en/2.1/ref/contrib/auth/" note = "https://docs.djangoproject.com/en/2.1/ref/contrib/auth/"
} }


@article{Django,
author = "Djangogirlsgirls",
@article{Djangogirls,
author = "Djangogirls",
title = "Creating a blog post model", title = "Creating a blog post model",
year = "2018", year = "2018",
note = "https://tutorial.djangogirls.org/en/django_models/"
note = "https://tutorial.djangogirls.org/en/django\_models/"
} }


@article{Microsoft, @article{Microsoft,
note = "https://www.pcmag.com/encyclopedia/term/58231/user-permissions" note = "https://www.pcmag.com/encyclopedia/term/58231/user-permissions"
} }


@article{Django-2,
author = "Django Software Foundation",
title = "Modelforms - The save() methode",
year = "2018",
note = "https://docs.djangoproject.com/en/dev/topics/forms/modelforms/\#the-save-method"
}




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