Q&A
Modelも分からず、何がしたいのかも分からず、dicが何なのかも分からないので、答えにくいのですが、とりあえずurls.pyでの<dictionary_id>は<id>にしないとdelete()関数の引数と名前が合わないのでエラーになりますよ。
<dic>は必要なものなのでしょうか？必要であれば目的を教えて下さい。
あと、Modelも必要です。
#内容
DJANGOのモデルからデータを削除するVIEWを書いています。
対象としているMODELが複数ある場合に、URLパターンで対象のモデルを引数で渡して、VIEWSの処理側に分岐を入れて処理しようと思っています。
#質問
下記のように、HTML側にurl関数を書いて、PYTHON側で<dic>で受けたいのですが、どう書けばいいでしょうか？
クライアント側
<a href="{% url 'delete' #ここで<dic>を渡したい# w.id %}">Delete</a></center></td>
サーバ側
path('delete/<dic>/<id>', views.delete, name='delete'),
#補足
モデルを追加しました。
アプリケーションは、英語、中国語、日本語の辞書です。
各MODELに合わせてTEMPLATEを４つ（同じものを使いまわし）作っています。
要するに、URLのルーティングで 引数を２つ渡したいというのが、質問の趣旨になります。
html
1TEMPLATE(*.html) 2 3{% if all_words %} 4 <table class="table table-bordered"> 5 {% for w in all_words %} 6 <tr> 7 <td><a>{{ w.word }}</a></td> 8 <td><a>{{ w.definition }}</a></td> 9 <td><center><a href="{% url 'delete'ここで<dic>を渡したい' w.id %}">Delete</a></center></td> 10 </tr> 11 {% endfor %} 12 </table> 13 {% endif %} 14
python
1urls.py 2urlpatterns = [ 3 path('delete/<dic>/<id>', views.delete, name='delete'), 4] 5 6 7 8views.py 9def delete(request, dic, id): 10 pdb.set_trace() 11 if dic == "All": 12 w = DictionaryAll.objects.get(id=id) 13 w.delete() 14 elif dic == "J": 15 w = DictionaryJ.objects.get(id=id) 16 w.delete() 17 elif dic == "C": 18 w = DictionaryC.objects.get(id=id) 19 w.delete() 20 elif dic == "E": 21 w = DictionaryE.objects.get(id=id) 22 w.delete() 23 else: 24 None 25 #messages.success(request, 'Word Has Been Deleted!') 26 #return redirect('content' + dic) 27 return 28 29model.py 30from django.db import models 31import json 32 33class DictionaryE(models.Model): 34 word = models.CharField(max_length=50, null=True, blank=True) 35 definition = models.CharField(max_length=1000, null=True, blank=True) 36 37 def __str__(self): 38 return self.word 39 40class DictionaryC(models.Model): 41 word = models.CharField(max_length=50, null=True, blank=True) 42 definition = models.CharField(max_length=1000, null=True, blank=True) 43 44 def __str__(self): 45 return self.word 46 47class DictionaryJ(models.Model): 48 word = models.CharField(max_length=50, null=True, blank=True) 49 definition = models.CharField(max_length=1000, null=True, blank=True) 50 51 def __str__(self): 52 return self.word 53 54class DictionaryAll(models.Model): 55 english = models.ForeignKey(DictionaryE , on_delete=models.CASCADE)#, to_field='word') 56 japanese = models.ForeignKey(DictionaryJ , on_delete=models.CASCADE)#), to_field='word') 57 chinese = models.ForeignKey(DictionaryC , on_delete=models.CASCADE)#, to_field='word')
# 動くものがないとお互いに確認できないので、Unix系でしか動きませんが、空のディレクトリで実行すると３つファイルを作り
# . create_env.sh
# とするとソースを作ってdjangoが起動するスクリプトを書いてみました。
sed 's/^\xc2\xa0/ /;s/￥/\\/g;s/＄/$/g;s/｀/`/g;s/ /\x20\x20/g' <<__END_OF_TERMINAL_CODE__ >answered_all.patch
diff --git a/myapp/admin.py b/myapp/admin.py
index 8c38f3f..85d969d 100644
--- a/myapp/admin.py
+++ b/myapp/admin.py
@@ -1,3 +1,7 @@
+"""
+admin.py
+"""
from django.contrib import admin
+from .models import WordDefinition
-# Register your models here.
+admin.site.register(WordDefinition)
diff --git a/myapp/models.py b/myapp/models.py
index 71a8362..cd2b051 100644
--- a/myapp/models.py
+++ b/myapp/models.py
@@ -1,3 +1,11 @@
+"""
+models.py
+"""
from django.db import models
-# Create your models here.
+class WordDefinition(models.Model):
+ """
+ Word and its Definition
+ """
+ word = models.CharField('単語', max_length=200, unique=True, null=False)
+ definition = models.CharField('定義', max_length=1024, null=False)
diff --git a/myapp/templates/myapp/index.html b/myapp/templates/myapp/index.html
new file mode 100644
index 0000000..d44f468
--- /dev/null
+++ b/myapp/templates/myapp/index.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html lang="ja">
+
+<head>
+ <meta charset="utf-8">
+</head>
+
+<body>
+ {% if all_words %}
+ <table class="table table-bordered">
+ {% for w in all_words %}
+ <tr>
+ <td><a>{{ w.word }}</a></td>
+ <td><a>{{ w.definition }}</a></td>
+ <td style="text-align: center;">
+ <a href="{% url 'delete' w.id %}">Delete</a>
+ </td>
+ </tr>
+ {% endfor %}
+ </table>
+ {% endif %}
+</body>
+
+</html>
￥ No newline at end of file
diff --git a/myapp/urls.py b/myapp/urls.py
new file mode 100644
index 0000000..8f3ed55
--- /dev/null
+++ b/myapp/urls.py
@@ -0,0 +1,10 @@
+"""
+urls.py
+"""
+from django.urls import path
+from . import views
+
+urlpatterns = [
+ path('', views.index, name='index'),
+ path('delete/<word_id>', views.delete, name = 'delete')
+]
diff --git a/myapp/views.py b/myapp/views.py
index 91ea44a..ad4060d 100644
--- a/myapp/views.py
+++ b/myapp/views.py
@@ -1,3 +1,24 @@
+"""
+View
+"""
from django.shortcuts import render
+from django.http import HttpResponse
+from django.urls import reverse
+from .models import WordDefinition
-# Create your views here.
+def index(request):
+ """
+ list words and links for deletion.
+ """
+ words = WordDefinition.objects.all()
+ return render(request, 'myapp/index.html', {"all_words": words})
+
+def delete(request, word_id):
+ """
+ delete the specified word.
+ """
+ word = WordDefinition.objects.get(id=word_id)
+ word.delete()
+
+ return HttpResponse('<div>Word Has Been Deleted!</div>'￥
+ '<div><a href="{url}">back to index</a></div>'.format(url=reverse('index')))
diff --git a/mysite/settings.py b/mysite/settings.py
index 81f7dc8..036afe9 100644
--- a/mysite/settings.py
+++ b/mysite/settings.py
@@ -31,6 +31,7 @@ ALLOWED_HOSTS = []
# Application definition
INSTALLED_APPS = [
+ 'myapp.apps.MyappConfig',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
@@ -103,9 +104,9 @@ AUTH_PASSWORD_VALIDATORS = [
# Internationalization
# https://docs.djangoproject.com/en/3.1/topics/i18n/
-LANGUAGE_CODE = 'en-us'
+LANGUAGE_CODE = 'ja-jp'
-TIME_ZONE = 'UTC'
+TIME_ZONE = 'Asia/Tokyo'
USE_I18N = True
diff --git a/mysite/urls.py b/mysite/urls.py
index e7f9f35..b41a8b1 100644
--- a/mysite/urls.py
+++ b/mysite/urls.py
@@ -14,8 +14,9 @@ Including another URLconf
2. Add a URL to urlpatterns: path('blog/', include('blog.urls'))
"""
from django.contrib import admin
-from django.urls import path
+from django.urls import path, include
urlpatterns = [
+ path('myapp/', include('myapp.urls')),
path('admin/', admin.site.urls),
]
__END_OF_TERMINAL_CODE__
sed 's/^\xc2\xa0/ /;s/￥/\\/g;s/＄/$/g;s/｀/`/g;s/ /\x20\x20/g' <<__END_OF_TERMINAL_CODE__ >create_env.sh
PYTHONCOMMAND="python3"
if ! command -v python3; then
PYTHONCOMMAND="python"
fi
＄PYTHONCOMMAND -m venv env
. env/bin/activate
pip install --upgrade pip
pip install django==3.1
django-admin startproject mysite
cd mysite
django-admin startapp myapp
patch -p1 <../answered_all.patch
python manage.py makemigrations
python manage.py migrate
python manage.py loaddata ../myapp.WordDefinition.json
python manage.py runserver
__END_OF_TERMINAL_CODE__
sed 's/^\xc2\xa0/ /;s/￥/\\/g;s/＄/$/g;s/｀/`/g;s/ /\x20\x20/g' <<__END_OF_TERMINAL_CODE__ >myapp.WordDefinition.json
[{"model": "myapp.worddefinition", "pk": 1, "fields": {"word": "単語１", "definition": "単語１の定義"}}, {"model": "myapp.worddefinition", "pk": 2, "fields": {"word": "単語２", "definition": "単語２の定義"}}, {"model": "myapp.worddefinition", "pk": 3, "fields": {"word": "単語３", "definition": "単語３の定義"}}]
__END_OF_TERMINAL_CODE__
回答1件
0
ベストアンサー
テンプレートでのurlタグについて複数の引数を取る構文は、
https://docs.djangoproject.com/en/3.1/ref/templates/builtins/#url
のとおりです。今回のケースでは、
urls.py
python
1urlpatterns = [ 2 path('delete/<dic>/<id>', views.delete, name='delete'), 3]
views.py
python
1def delete(request, dic, id):
xxxx.html
python
1<a href="{% url 'delete' dic w.id %}">Delete</a>
のような形になります。xxxx.htmlテンプレートを使用するviewで、オブジェクトのプロパティにdicを設定してあげることで、リンクに反映され、ルーティングで読み取られ、viewに渡ります。
一応前にコメントしたサンプルに引数langをダミーで加えたバージョンを付記しておきます。
bash
1PYTHONCOMMAND="python3" 2if ! command -v python3; then 3 PYTHONCOMMAND="python" 4fi 5$PYTHONCOMMAND -m venv env 6. env/bin/activate 7pip install --upgrade pip 8pip install django==3.1 9django-admin startproject mysite 10cd mysite 11django-admin startapp myapp 12patch -p1 << __END_OF_TERMINAL_CODE__ 13diff --git a/myapp.WordDefinition.json b/myapp.WordDefinition.json 14new file mode 100644 15index 0000000..34d0aaa 16--- /dev/null 17+++ b/myapp.WordDefinition.json 18@@ -0,0 +1,2 @@ 19+[{"model": "myapp.worddefinition", "pk": 1, "fields": {"word": "単語１", "definition": "単語１の定義"}}, {"model": "myapp.worddefinition", "pk": 2, "fields": {"word": "単語２", "definition": "単語２の定義"}}, {"model": "myapp.worddefinition", "pk": 3, "fields": {"word": "単語３", "definition": "単語３の定義"}}] 20+ 21diff --git a/myapp/admin.py b/myapp/admin.py 22index 8c38f3f..85d969d 100644 23--- a/myapp/admin.py 24+++ b/myapp/admin.py 25@@ -1,3 +1,7 @@ 26+""" 27+admin.py 28+""" 29 from django.contrib import admin 30+from .models import WordDefinition 31 32-# Register your models here. 33+admin.site.register(WordDefinition) 34diff --git a/myapp/models.py b/myapp/models.py 35index 71a8362..cd2b051 100644 36--- a/myapp/models.py 37+++ b/myapp/models.py 38@@ -1,3 +1,11 @@ 39+""" 40+models.py 41+""" 42 from django.db import models 43 44-# Create your models here. 45+class WordDefinition(models.Model): 46+ """ 47+ Word and its Definition 48+ """ 49+ word = models.CharField('単語', max_length=200, unique=True, null=False) 50+ definition = models.CharField('定義', max_length=1024, null=False) 51diff --git a/myapp/templates/myapp/index.html b/myapp/templates/myapp/index.html 52new file mode 100644 53index 0000000..a76e60d 54--- /dev/null 55+++ b/myapp/templates/myapp/index.html 56@@ -0,0 +1,24 @@ 57+<!DOCTYPE html> 58+<html lang="ja"> 59+ 60+<head> 61+ <meta charset="utf-8"> 62+</head> 63+ 64+<body> 65+ {% if all_words %} 66+ <table class="table table-bordered"> 67+ {% for w in all_words %} 68+ <tr> 69+ <td><a>{{ w.word }}</a></td> 70+ <td><a>{{ w.definition }}</a></td> 71+ <td style="text-align: center;"> 72+ <a href="{% url 'delete' lang w.id %}">Delete</a> 73+ </td> 74+ </tr> 75+ {% endfor %} 76+ </table> 77+ {% endif %} 78+</body> 79+ 80+</html> 81\ No newline at end of file 82diff --git a/myapp/urls.py b/myapp/urls.py 83new file mode 100644 84index 0000000..5e7a908 85--- /dev/null 86+++ b/myapp/urls.py 87@@ -0,0 +1,10 @@ 88+""" 89+urls.py 90+""" 91+from django.urls import path 92+from . import views 93+ 94+urlpatterns = [ 95+ path('', views.index, name='index'), 96+ path('delete/<lang>/<word_id>', views.delete, name = 'delete') 97+] 98diff --git a/myapp/views.py b/myapp/views.py 99index 91ea44a..6e68633 100644 100--- a/myapp/views.py 101+++ b/myapp/views.py 102@@ -1,3 +1,25 @@ 103+""" 104+View 105+""" 106 from django.shortcuts import render 107+from django.http import HttpResponse 108+from django.urls import reverse 109+from .models import WordDefinition 110 111-# Create your views here. 112+def index(request): 113+ """ 114+ list words and links for deletion. 115+ """ 116+ words = WordDefinition.objects.all() 117+ return render(request, 'myapp/index.html', {"all_words": words, "lang": "hoge"}) 118+ 119+def delete(request, lang, word_id): 120+ """ 121+ delete the specified word. 122+ """ 123+ word = WordDefinition.objects.get(id=word_id) 124+ word.delete() 125+ 126+ return HttpResponse('<div>Word Has Been Deleted!</div>'\ 127+ '<div><a href="{url}">back to index</a>{lang}</div>' 128+ .format(url=reverse('index'), lang=lang)) 129diff --git a/mysite/settings.py b/mysite/settings.py 130index 5680ac4..20a2808 100644 131--- a/mysite/settings.py 132+++ b/mysite/settings.py 133@@ -31,6 +31,7 @@ ALLOWED_HOSTS = [] 134 # Application definition 135 136 INSTALLED_APPS = [ 137+ 'myapp.apps.MyappConfig', 138 'django.contrib.admin', 139 'django.contrib.auth', 140 'django.contrib.contenttypes', 141@@ -103,9 +104,9 @@ AUTH_PASSWORD_VALIDATORS = [ 142 # Internationalization 143 # https://docs.djangoproject.com/en/3.1/topics/i18n/ 144 145-LANGUAGE_CODE = 'en-us' 146+LANGUAGE_CODE = 'ja-jp' 147 148-TIME_ZONE = 'UTC' 149+TIME_ZONE = 'Asia/Tokyo' 150 151 USE_I18N = True 152 153diff --git a/mysite/urls.py b/mysite/urls.py 154index e7f9f35..b41a8b1 100644 155--- a/mysite/urls.py 156+++ b/mysite/urls.py 157@@ -14,8 +14,9 @@ Including another URLconf 158 2. Add a URL to urlpatterns: path('blog/', include('blog.urls')) 159 """ 160 from django.contrib import admin 161-from django.urls import path 162+from django.urls import path, include 163 164 urlpatterns = [ 165+ path('myapp/', include('myapp.urls')), 166 path('admin/', admin.site.urls), 167 ] 168__END_OF_TERMINAL_CODE__ 169python manage.py makemigrations 170python manage.py migrate 171python manage.py loaddata myapp.WordDefinition.json 172python manage.py runserver 173
投稿2020/08/28 09:33
編集2020/08/28 15:41総合スコア943
ありがとうございました。
テンプレートの中の url_for には、 スペース句切りで引数をいれれば、いくらでも渡せることを理解いたしました。
大変詳しく教えて頂き、ありがとうございました。
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