I am in process of creating Django CMS plugin. So far I have created a form, model and plugin file. I want to save SETTINGS info, but when I go to save it it gives error as mentioned above. Below are details.
cms_plugins.py
from cms.plugin_base import CMSPluginBase
from cms.plugin_pool import plugin_pool
from cms.models import CMSPlugin
from src.survey.forms import SurveyForm
from . import models
class SurveyPluginPublisher(CMSPluginBase):
"""Show Polls entered by Admin."""
cache = False
form = SurveyForm
model = models.SurveyPluginModel # Must add to show stuff.
module = "Survey"
name = "Awesome Survey v1.0"
render_template = 'survey/_hello.html'
plugin_pool.register_plugin(SurveyPluginPublisher)
forms.py
from django import forms
from src.survey.models import Survey
models.py
class SurveyForm(forms.Form):
# all_surveys = Survey.objects.only('name')
# surveys = forms.ModelChoiceField(queryset=all_surveys)
headline = forms.CharField(max_length=255, help_text='Enter Headline')
description = forms.CharField(widget=forms.Textarea(attrs={'rows': 5, 'cols': 100}),help_text='Enter Description')
models.py
class SurveyPluginModel(CMSPlugin):
name = models.CharField("Survey Name", max_length=255, default='Survey Name',
help_text='Enter Survey Name')
description = models.CharField("Survey Description", max_length=500, blank=True, help_text='Write Description here')
def __str__(self):
return "Returning some Survey Text"
SurveyForm should be a subclass of ModelForm
class SurveyForm(forms.ModelForm):
class Meta:
model = SurveyPluginModel
Related
I'm relatively new to Django and not an advanced programmer, so please pardon my ignorance.
What is working:
I have a Django application that uses one main model which connects to two secondary models with foreign keys. The application can correctly create companies from template and from admin, and can correctly display the "niche" drop-down field using a foreign key to the Category model and can correctly display the images using a foreign key from the CompanyImage model.
What is not working:
The django-import-export library can correctly import an XLS document from front end and from admin, but ONLY if I disable the Category and CompanyImage model that are relying on foreign keys. The library does import correctly with the default user=models.ForeignKey(User) in my main Company model, but the foreign keys that connect to the secondary models are causing a foreign key error: IntegrityError at /import/ FOREIGN KEY constraint failed.
What I need
The XLS sheet I am importing does not import the fields that use a foreign key, so I would like to disable those fields to avoid the foreign key error. It would be nice to import a niche/category field, but I can do without.
What I've tried
I've spent two days trying to fix this problem.
I've tried reading the django-import-export documentation.
I've tried adding list_filter and exclude in class Meta for the Resource model.
I've read through Dealing with import of foreignKeys in django-import-export.
I've read through foreign key in django-import-export.
I would be very grateful someone can help steer me in the right direction. Thank you.
Models.py
from django.db import models
from django.contrib.auth.models import User
from phonenumber_field.modelfields import PhoneNumberField
#had to use pip install django-phone-verify==0.1.1
from django.utils import timezone
import uuid
from django.template.defaultfilters import slugify
class Category(models.Model):
kind = models.CharField(verbose_name='Business Type',max_length=100,blank=True,)
class Meta:
verbose_name_plural = "Categories"
def __str__(self):
return self.kind
class Company(models.Model):
#BASIC
title = models.CharField(verbose_name='company name',max_length=100,blank=True)
contact = models.CharField(verbose_name='director',max_length=100,blank=True)
phone_number = PhoneNumberField(blank=True)
email = models.EmailField(max_length=200,blank=True)
email_host = models.CharField(max_length=200,blank=True)
website = models.URLField(max_length=200,blank=True)
facebook = models.URLField(max_length=200,blank=True)
memo = models.TextField(blank=True)
niche = models.ForeignKey(Category, default=0000,on_delete=models.SET_DEFAULT)
#UPLOADS
profile_picture = models.ImageField(upload_to='prospects/images/', blank=True)
image = models.ImageField(upload_to='prospects/images/', blank=True)
file = models.FileField(upload_to='prospects/uploads', blank=True)
#TIME
date = models.DateField(default=timezone.now)
created = models.DateTimeField(auto_now_add=True)
updated = models.DateTimeField(auto_now=True)
datecompleted = models.DateTimeField(null=True, blank=True) #null for datetime object
#BOOLIANS
important = models.BooleanField(default=False)
cold = models.BooleanField(default=False, verbose_name='these are cold leads')
warm = models.BooleanField(default=False, verbose_name='these are warm leads')
hot = models.BooleanField(default=False, verbose_name='these are hot leads')
#USER
user = models.ForeignKey(User, on_delete=models.CASCADE,null=True,blank=True)
#TEST MODEL
decimal = models.DecimalField(max_digits=5, decimal_places=2, blank=True, default=00.00)
integer = models.IntegerField(blank=True, default=0000)
positive_int = models.PositiveIntegerField(null=True, blank=True, default=0000)
positive_small_int = models.PositiveSmallIntegerField(null=True, blank=True, default=0000)
#ADMIN CONSOLE
class Meta:
verbose_name_plural = "Companies"
def __str__(self):
if self.title == "":
print('empty string')
return "No Name"
elif type(self.title) == str:
return self.title
else:
return "No Name"
# this makes the title appear in admin console instead of object number
class CompanyImage(models.Model):
company = models.ForeignKey(Company, default=None, on_delete=models.CASCADE)
image = models.FileField(upload_to = 'prospects/images/',blank=True)
def __str__(self):
return self.company.title
resource.py
from import_export import resources
# from import_export import fields
from import_export.fields import Field
from import_export.fields import widgets
from .models import Company
from django.utils.encoding import force_str, smart_str
# The following widget is to fix an issue with import-export module where if i import any number from an xls file, it imports as a float with a trailing ,0
#could keep it a number and use trunc function to take away decimal but will make string
class DecimalWidget(widgets.NumberWidget):
def clean(self, value, row=None, *args, **kwargs):
print()
print(f"type of value is {type(value)}")
print()
if self.is_empty(value):
return ""
elif type(value) == float:
new_string = force_str(value)
seperator = '.'
new_string_witout_0 = new_string.split(seperator, 1)[0]
print()
print(f"the new type of value is {type(value)}")
print(f"the new value is {value}")
print()
return new_string_witout_0
else:
print("Aborting! it's not a float or empty string. will just return it as it is.")
return value
print()
print(f"type of value is {type(value)}")
print(f" the value returned is {value}")
print()
class CompanyResource(resources.ModelResource):
title = Field(attribute='title', column_name='name',widget=DecimalWidget())
contact = Field(attribute='contact', column_name='contact',widget=DecimalWidget())
phone_number = Field(attribute='phone_number', column_name='phone',widget=DecimalWidget())
# niche = Field(attribute='niche', column_name='niche',widget=DecimalWidget())
class Meta:
model = Company
exclude = ('niche')
fields = ('id','title','contact','phone_number', 'email','email_host','website','facebook')
export_order = ['id','title','contact','phone_number', 'email','email_host','website','facebook']
# fields = ( 'id', 'weight' )
admin.py
from django.contrib import admin
from import_export.admin import ImportExportModelAdmin
from import_export.fields import Field
from import_export import resources
# from import_export import resources
from .models import Company,Category, CompanyImage
from.resources import CompanyResource
class CompanyResource(resources.ModelResource):
class Meta:
model = Company
class CompanyImageAdmin(admin.StackedInline):
model = CompanyImage
class CompanyAdmin(ImportExportModelAdmin):
resource_class = CompanyResource
inlines = [CompanyImageAdmin]
# Register your models here.
admin.site.register(Category)
admin.site.register(Company,CompanyAdmin)
#admin.register(CompanyImage)
class CompanyImageAdmin(admin.ModelAdmin):
pass
views.py
def importcompanies(request):
if request.method == 'GET':
return render(request, 'prospects/import.html')
else:
file_format = request.POST['file-format']
company_resource = CompanyResource()
dataset = Dataset()
new_companies = request.FILES['myfile']
if file_format == 'CSV':
imported_data = dataset.load(new_companies.read().decode('utf-8'),format='csv')
result = company_resource.import_data(dataset, dry_run=True, raise_errors=True)
elif file_format == 'XLSX':
imported_data = dataset.load(new_companies.read(),format='xlsx')
result = company_resource.import_data(dataset, dry_run=True, raise_errors=True)
elif file_format == 'XLS':
imported_data = dataset.load(new_companies.read(),format='xls')
result = company_resource.import_data(dataset, dry_run=True, raise_errors=True)
if result.has_errors():
messages.error(request, 'Uh oh! Something went wrong...')
else:
# Import now
company_resource.import_data(dataset, dry_run=False)
messages.success(request, 'Your words were successfully imported')
return render(request, 'prospects/import.html')
You have CompanyResource defined in two places, so this could be the source of your problem. Remove the declaration from admin.py and see if that helps.
As you say, fields and exclude are used to define which model fields to import. fields is a whitelist, whilst exclude is a blacklist, so you shouldn't need both.
Set up a debugger (if you haven't already) and step through to find out what is going on (this can save days of effort).
If it is still not working, please update your answer and try to be specific about the nature of the issue (see how to ask).
i want to create a tag field like youtube give tage field while uploading a vedio this is what i tried in in my blog form
my models.py
from django.db import models
from django.contrib.auth.models import User
from django.utils import timezone
# Create your models here.
class Blog(models.Model):
author = models.OneToOneField(User, on_delete=models.CASCADE,)
title = models.CharField(max_length=200,blank=False,)
thumbnail = models.ImageField(upload_to='blogs_thumbnail',default='blogdefa.png')
tags = models.CharField(max_length=500, blank=False, default='Blog')
data = models.TextField(blank=False,)
published_date = models.DateTimeField(default=timezone.now,editable=False)
update_at = models.DateTimeField(auto_now=True,editable=False)
def __str__(self):
return self.title
any idea how to do it i don,t know how to do it
my forms.py
from django import forms
from django.forms import ModelForm, Textarea
from django.contrib.auth.models import User
from .models import Blog, comment, report
forms here
class BlogForm(forms.ModelForm):
class Meta:
model = Blog
fields = '__all__'
widgets = {'data': Textarea(attrs={'cols': 80, 'rows': 20, 'placeholder':'Write Here'}),
'title':forms.TextInput(attrs={'placeholder':'Your Blog Title Here'}),
'tags': forms.TextInput(attrs={'placeholder':'Please enter you content related tags'}),
}
exclude = ['author','published_date','update_at']
all i want is user can create his own tag for blogs like in youtube and not like stackoverflow where you have use to choose you tag
please help
currently it look like this
which is not cool
First thing is that tags work. So to get them working you should relate it to your post.
So you should create a Tag model and use a ManytoManyRelated field to relate tags because you need to get to the post/result at the end using tags.
from django.db import models
from django_extensions.db.fields import AutoSlugField
from django.db.models import CharField, TextField, DateField, EmailField, ManyToManyField
class Tag(models.Model):
name = CharField(max_length=31, unique=True, default="tag-django")
slug = AutoSlugField(max_length=31, unique=True, populate_from=["name"])
def __str__(self):
return self.name
class YourPost(models.Model):
name = CharField(max_length=31, db_index=True)
slug = AutoSlugField(max_length=31, unique=True, populate_from=["name"])
description = TextField()
date_founded = DateField(auto_now_add=True)
contact = EmailField()
tags = ManyToManyField(Tag, related_name="tags")
class Meta:
get_latest_by = ["date_founded"]
def __str__(self):
return self.name
Go on from here.
Create serializers, Viewsets. Relate your tags to your post.
The documentation for django-import-export is a bit weak on how to configure the admin to import from a spreadsheet. Does anyone have a full example?
This is not a fully complete module. But you can understand how it should be.
resources.py file
from import_export import resources
from .models import edxUser
class edxUserResource(resources.ModelResource):
class Meta:
model = edxUser
#skip_unchanged = True
#report_skipped = True
#if you want to exclude any field from exporting
exclude = ('id','edx_anonymized_id')
fields = ('id', 'edx_id', 'edx_anonymized_id', 'edx_email', 'edx_name', 'time_created', 'created_by')
#Order of the export fields
export_order = ('edx_id', 'edx_email')
admin.py file
from import_export.admin import ImportExportModelAdmin
from django.contrib import admin
from .models import edxUser
from resources import edxUserResource
#admin.register(edxUser)
class edxUserAdmin(ImportExportModelAdmin):
resource_class = edxUserResource
models.py file
from __future__ import unicode_literals
from django.conf import settings
from django.db import models
class edxUser(models.Model):
edx_id = models.IntegerField('edX user id', blank=True, null=True)
edx_anonymized_id = models.IntegerField("edX anonymized user id", blank=True, null=True)
edx_email = models.EmailField('edx user email', max_length=75, blank=True)
edx_name = models.CharField('edx name', max_length=75, blank=True, null=True)
time_created = models.DateField('Created time', blank=True, null=True)
created_by = models.OneToOneField(settings.AUTH_USER_MODEL, null=True, blank=True)
def __unicode__(self):
return str(self.edx_id)
Here's how to do it, assuming that the column names in the spreadsheet are Title and Field one. This example assumes that the model instances will be created afresh every import (rather than being updated via a primary key).
from django.contrib import admin
from import_export.admin import ImportMixin
from import_export import resources, fields
from .models import MyModel
class MyModelResource(resources.ModelResource):
title = fields.Field(attribute='title',
column_name='Title')
field_one = fields.Field(attribute='field_one',
column_name='Field one')
def get_instance(self, instance_loader, row):
# Returning False prevents us from looking in the
# database for rows that already exist
return False
class Meta:
model = MyModel
fields = ('title', 'field_one')
export_order = fields
class MyModelAdmin(ImportMixin, admin.ModelAdmin):
resource_class = MyModelResource
admin.site.register(MyModel, MyModelAdmin)
I hava an article app installed in django admin site,when i finish editing one article,I click the save button,but an error page:
article/models.py
# blog category models
class Category(models.Model):
id = models.IntegerField(primary_key=True,help_text='primary key')
name = models.CharField(max_length=50,help_text='category name')
description = models.TextField(default='',help_text='category description')
createtime = models.DateTimeField(auto_now_add=True)
modifytime = models.DateTimeField(auto_now=True)
categories = models.Manager()
class Meta:
db_table = 'article_category'
def __str__(self):
return self.name
#blog article models
class Article(models.Model):
STATUS = (
(0,'on'),
(1,'off')
)
id = models.IntegerField(primary_key=True,help_text='primary key')
category = models.ForeignKey(Category,help_text='foreigner key reference Category')
title = models.CharField(max_length=100,help_text='article title')
content = models.TextField(help_text='article content')
like = models.IntegerField(default=0,help_text='like numbers')
secretcode = models.CharField(max_length=512,help_text='who has the code can scan')
status = models.IntegerField(choices=STATUS,help_text='status of the article')
createtime = models.DateTimeField(auto_now_add=True,help_text='time that first created')
modifytime = models.DateTimeField(auto_now=True,help_text='time when modified')
articles = models.Manager()
class Meta:
db_table = 'article'
article/widgets.py
from pagedown.widgets import AdminPagedownWidget
from django import forms
from .models import Article
class ArticleModelForm(forms.ModelForm):
content = forms.CharField(widget=AdminPagedownWidget())
class Meta:
model = Article
fields = ('title','category', 'content', 'secretcode', 'status')
article/admin.py
from django.contrib import admin
from .widgets import ArticleModelForm
from .models import Article,ArticleImage,Category
class MMBArticleAdmin(admin.ModelAdmin):
form = ArticleModelForm
admin.site.register(Article,MMBArticleAdmin)
admin.site.register(Category)
admin.site.register(ArticleImage)
the page in the admin site looks likeļ¼
and then I click save ,the error page show up like above!why did this happen?and how to fix it?
You've overridden the default automatic field with a manual non-autoincrementing ID. Don't do that. Remove your id fields altogether.
I have created custom events plugin and now I want to display closest event on my home page (django-cms page with home.html template).
How can I do it? This is my event/models.py
from django.core.urlresolvers import reverse
from django.db import models
from adminsortable.models import Sortable
from easy_thumbnails.fields import ThumbnailerImageField
from cms.models.fields import PlaceholderField
from cms.models.pluginmodel import CMSPlugin
class Event(Sortable):
class Meta:
app_label = 'event'
event_name = models.CharField(
blank=False,
default='',
max_length=64,
)
date = models.DateField(
auto_now=False,
auto_now_add=False,
)
photo = ThumbnailerImageField(
upload_to='events',
blank=True,
)
def __unicode__(self):
return self.event_name
To get the latest event, you can override the render method of your plugin:
class YourCMSPlugIn(CMSPluginBase):
model = Event
...
def render(self, context, instance, placeholder):
context.update({
'latest_event': self.model.objects.all()[:1],
'placeholder': placeholder
})
return context
See: http://docs.django-cms.org/en/latest/extending_cms/custom_plugins.html#storing-configuration for more information.