eclecticmiraclecat

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eclecticmiraclecat / django Q.md

Created November 4, 2020 12:17

>>> Employee.objects.filter(firstName__contains='bo') | Employee.objects.filter(salary__lte='2000')
<QuerySet [<Employee: Employee object (1)>]>
>>> 
>>> from django.db.models import Q
>>> Employee.objects.filter(Q(firstName__contains='bo') | Q(salary__lte='2000'))
<QuerySet [<Employee: Employee object (1)>]>

eclecticmiraclecat / django form.md

Last active November 4, 2020 13:01

# forms.py
from django import forms

class UserRegistrationForm(forms.Form):
  firstName = forms.CharField()
  lastName = forms.CharField()
  email = forms.CharField()

eclecticmiraclecat / django submit and redirect.md

Last active November 4, 2020 14:34

# urls.py
from .views import display, onsubmit

urlpatterns = [
    path('hello/', display, name='n_index'),
    path('onsubmit/', onsubmit, name='n_onsubmit'),
]

eclecticmiraclecat / django model form.md

Created November 4, 2020 15:00

# forms.py
from django import forms
from .models import Employee

class UserRegistrationForm(forms.ModelForm):
  class Meta:
    model= Employee
    fields = '__all__'

eclecticmiraclecat / django CRUD.md

Created November 5, 2020 08:56

$ ls fbvApp/templates/fbvApp/
create.html  index.html  update.html

# models.py
from django.db import models

class Student(models.Model):

eclecticmiraclecat / django CBV.md

Created November 5, 2020 12:33

# urls.py
from cbvApp.views import GreetingView

urlpatterns = [
    path('', GreetingView.as_view())
]

eclecticmiraclecat / django CBV pass argument to view.md

Created November 5, 2020 12:38

# urls.py
from cbvApp.views import GreetingView

urlpatterns = [
    path('', GreetingView.as_view(msg='hi'))
]

eclecticmiraclecat / django CBV CRUD.md

Created November 5, 2020 14:06

$ ls cbvApp/templates/cbvApp/
student_confirm_delete.html  student_detail.html  student_form.html  student_list.html

# models.py
from django.db import models
from django.urls import reverse

eclecticmiraclecat / django custom template tag filter.md

Created November 5, 2020 14:21

$ ls cbvApp/templatetags/
custFilters.py  __init__.py

from django import template
register = template.Library()

@register.filter(name='extradash')

eclecticmiraclecat / django database mapping one-to-one.md

Created November 6, 2020 09:36

one to one

one person one license

# models.py
class Person(models.Model):
  name = models.CharField(max_length=20)

class License(models.Model):
 license_number = models.IntegerField()

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