Django Framework

01.txt

#views.py
	stats = '-'
	if request.method == 'POST':
		form = GoatInfoForm(request.POST) #{}

		if form.is_valid():
			cd = form.cleaned_data #outpur: dictionary
			form_clean = GoatInfoForm(cd)
			#cd.save()
			stats = 'save'
			#form_clean.save()
			if cd['category'] == 'birth':
				
				birth_info = {
					'dam': request.POST['dam_id'],
					'sire': request.POST['sire_id'],
					'eartag': cd['eartag_id']
				}

				birthInfo_form = BirthInfoForm(birth_info)
				
				birth_stat = 'not valid'

				if birthInfo_form.is_valid():
					birth_stat = 'valid'
					cdb = birthInfo_form.cleaned_data
					cdb.save()

				return HttpResponse("{} is categorized as By Birth is {}".format(cd['eartag_id'],birth_stat))

			else:

				purchase_info = {
					'purchase_date': request.POST['purchase_date'],
					'purchase_weight': request.POST['purchase_weight'],
					'purchase_price': request.POST['purchase_price'],
					'purchase_from': request.POST['purchase_from']
				}

				return HttpResponse("{} is categorized as By Purchase".format(cd['eartag_id']))

			#endif	

		else:

			return HttpResponse("Form Data is not valid")
		
		#endif	

	else:

		form = GoatInfoForm()
	
	#endif	

	context = {
		'title': 'Django: the Web framework for perfectionists with deadlines. %s'%stats,
		'form': form
	}

	return render(request, 'index.html', context)



#models.py

class Profile(models.Model):

	GENDER = (
		('', '-- Please Select --'),
		('female','Female'),
		('male', 'Male'),
	)

	STATUS = (
		('', '-- Please Select --'),
		('active', 'Active'),
		('sold', 'Sold'),
		('deceased', 'Deceased'),
		('lost', 'Lost'),
		('stolen', ' Stolen'),
	)

	CATEGORY = (
		('purchase', 'By Purchase'),
		('birth', 'By Birth'),
	)

	eartag_id = models.IntegerField(primary_key=True)
	eartag_color = models.CharField(max_length=250, choices=((None, '-- Choose color --'), ('blue', 'Blue'), ('green', 'Green'), ('orange', 'Orange'), ('yellow','Yellow')))
	body_color = models.CharField(max_length=64)
	gender = models.CharField(max_length=10,choices=GENDER)
	nickname = models.CharField(max_length=250)
	is_castrated = models.BooleanField()
	status = models.CharField(max_length=32, choices=STATUS, default='active')
	category = models.CharField(max_length=32,choices=CATEGORY)
	birth_date = models.DateField()

	class Meta:
		ordering = ('eartag_id',)
		get_latest_by = 'birth_date'
		db_table = 'goat_profile'

class Birth_record(models.Model):

	birth_id = models.AutoField(primary_key=True)
	dam = models.ForeignKey(Profile, related_name='dam_profile', on_delete=models.CASCADE)
	sire = models.ForeignKey(Profile, related_name='sire_profile', on_delete=models.CASCADE)
	eartag = models.ForeignKey(Profile, related_name='offspring_profile', on_delete=models.CASCADE)
	
	class Meta:
		ordering = ('birth_id','eartag_id',)
		db_table = 'birth_record'
		get_latest_by = 'birth_id'

	def __str__(self):
		return "%d is the offspring of %d (dam) and %d (sire)"%(self.eartag_id, self.dam_id, self.sire_id)

class Purchase_record(models.Model):

	purchase_id = models.AutoField(primary_key=True)
	purchase_weight = models.DecimalField(decimal_places=2, max_digits=11)
	purchase_price = models.FloatField()
	purchase_date = models.DateField(auto_now=True)
	purchase_from = models.CharField(max_length=250)
	eartag = models.ForeignKey(Profile, on_delete=models.CASCADE)
	user = models.ForeignKey(User, related_name='goat_purchase', on_delete=models.CASCADE)

	class Meta:
		ordering = ('purchase_id','purchase_date','eartag_id',)
		db_table = 'purchase_record'
		get_latest_by = 'purchase_date'	




#forms.py


from django import forms
from .models import Profile, Purchase_record, Birth_record 

#class GoatInfoForm(forms.Form):
class GoatInfoForm(forms.ModelForm):
#	eartag_id = forms.IntegerField(min_value=1,widget=forms.widgets.NumberInput(attrs={'class': 'form-control', 'id': 'eartag_id'}))
#	eartag_color = forms.ChoiceField(choices=((None, '-- Choose color --'), ('blue', 'Blue'), ('green', 'Green'), ('orange', 'Orange'), ('yellow','Yellow')), widget=forms.widgets.Select(attrs={'class': 'form-control', 'id': 'eartag_color'}))
#	nickname = forms.RegexField(regex='^[a-zA-Z ]{4,}$', widget=forms.widgets.TextInput(attrs={'class': 'form-control', 'id': 'nickname'}))
#	gender = forms.ChoiceField(choices=(('', '-- Please Select --'), ('male', 'Male'), ('female', 'Female'), ), widget=forms.widgets.Select(attrs={'class': 'form-control', 'id': 'gender'}))
	#body_color = forms.CharField(widget=forms.widgets.TextInput(attrs={'class': 'form-control', 'id': 'body_color'}))

#	body_color = forms.RegexField(regex='^[a-zA-Z ]{3,}$', widget=forms.widgets.TextInput(attrs={'class': 'form-control', 'id': 'body_color'}))
#	category = forms.ChoiceField(choices=(('birth', 'By Birth'), ('purchase', 'By Purchase')), widget=forms.widgets.Select(attrs={'class': 'form-control', 'id': 'category'}))
#	is_castrated = forms.BooleanField(required=False, widget=forms.widgets.CheckboxInput(attrs={'class': '', 'id': 'is_castrated'}))
	
	#def cleaned_data(self):
	#	super(GoatInfoForm, self).clean()

	#	eartag_id = self.cleaned_data.get('eartag_id', '')
	#	print("\n\n\nEartag ID: %d\n\n\n\n\n"% eartag_id)
	#	eartag_color = self.cleaned_data.get('eartag_color', '')
	#	nickname = self.cleaned_data.get('nickname', '')
	#	gender = self.cleaned_data.get('gender', '')
	#	body_color = self.cleaned_data.get('body_color', '')
	#	category = self.cleaned_data.get('category', '')
	#	is_castrated = self.cleaned_data.get('is_castrated', '')

		#return {'eartag_id': eartag_id}

	class Meta:
		model = Profile
		fields = ('eartag_id','eartag_color','nickname','gender','body_color','birth_date','category','is_castrated',)#'__all__'

		#labels = {'eartag_id': 'Eartag ID'}
		#widgets = {
		#	'eartag_id': forms.widgets.NumberInput(attrs={'class':'form-control', 'id': 'eartag_id'}),
		#	'eartag_color': forms.widgets.Select(attrs={'class':'form-control', 'id': 'eartag_color'}),
		#	'gender': forms.widgets.Select(attrs={'class':'form-control', 'id': 'gender'}),
		#	'nickname': forms.widgets.TextInput(attrs={'class':'form-control','id':'nickname'}),
		#	'birth_date': forms.widgets.DateTimeInput(attrs={'class':'form-control', 'id':'birth_date'}),

		#}

class PurchaseInfoForm(forms.ModelForm):
    class Meta:
        model = Purchase_record
        fields = '__all__'
    
class BirthInfoForm(forms.ModelForm):

	def cleaned_data(self):
		super(BirthInfoForm, self).clean()
		
		eartag = self.cleaned_data.get('eartag_id', '')
		print("Get Clean Data of Eartag in Birth Form: {}".format(eartag))

		dam = self.cleaned_data.get('dam_id', '')
		sire = self.cleaned_data.get('sire_id', '')

	class Meta:
		model = Birth_record
		fields = ('dam', 'sire','eartag')




#index.html


{% extends 'base.html' %}
{% block content %}
<div class="container-fluid">
	<div class="row">
		<div class="col">
			&emsp;
		</div>
	</div>
	<div class="row px-3">
		<div class="col">
			<form method="post">
				<span title="Last refresh at {%now 'D | F j o => h:i A e' %}">{% now "D | F j, o Z z j E" %}</span>
				{% csrf_token %}
				<div class="form-row py-2">
					<div class="col col-lg-6">
						<label><p class="font-weight-bold">Tag ID:&nbsp;<span class="text-danger">*</span></p></label>
						<input type="number" name="eartag_id" class="form-control" min="1" required>
					</div>

					<div class="col">
						<label><p class="font-weight-bold">Tag Color:&nbsp;<span class="text-danger">*</span></p></label>
						<!--input type="text" name="eartag_color" list="color_list" class="form-control">
						<datalist id="color_list">
							<option>-- Choose Color --</option>
							<option value="yellow"><span class="badge badge-warning">&emsp;</span>Yellow</option>
							<option value="green">Green</option>
							<option value="orange">Orange</option>
							<option value="blue">Blue</option>
						</datalist-->
						<select name="eartag_color" class="form-control" required>
							<option>-- Choose Color --</option>
							<option value="yellow">Yellow</option>
							<option value="green">Green</option>
							<option value="orange">Orange</option>
							<option value="blue">Blue</option>
						</select>
					</div>
				</div>

				<div class="form-row py-2">
					<div class="col">
						<label><p class="font-weight-bold">Nickname:&nbsp;<span class="text-danger">*</span></p></label>
						<input type="text" name="nickname" placeholder="Nickname (e.g. Wolf)" class="form-control" required>
					</div>
				</div>

				<div class="form-row py-2">
					<div class="col">
						<label><p class="font-weight-bold">Gender:&nbsp;<span class="text-danger">*</span></p></label>
						<select name="gender" class="form-control" required>
							<option>-- Select Gender --</option>
							<option value="male">Male</option>
							<option value="female">Female</option>
						</select>
					</div>
				</div>

				<div class="form-row py-2">
					<div class="col">
						<label><p class="font-weight-bold">Body Color:&nbsp;<span class="text-danger">*</span></p></label>
						<input type="text" name="body_color" value="" placeholder="Body Color" class="form-control" required>
					</div>
				</div>

				<div class="form-row py-2">
					<div class="col">
						<label><p class="font-weight-bold">Date of Birth:&nbsp;<span class="text-danger">*</span></p></label>
						<input type="date" name="birth_date" placeholder="(e.g. mm/dd/yyyy)" class="form-control" required>
					</div>
				</div>

				<div class="form-row py-2">
					<div class="col">
						<label><p class="font-weight-bold">Category:&nbsp;<span class="text-danger">*</span></p></label>
						<label class="pl-5">
						<input type="radio" name="category" value="birth">&emsp;By Birth</label>
						<label>&emsp;
						<input type="radio" name="category" value="purchase">&emsp;By Purchase</label>						
					</div>
				</div>

				<div class="row" id="birth_elem">
					<div class="col">
						<div class="container-fluid">
							<div class="form-row py-2">
								<div class="col">
									<label><p class="font-weight-bold">Dam ID:&nbsp;<span class="text-danger">*</span></p></label>
									<input type="number" name="dam_id" class="form-control" min="1" required>
								</div>
							</div>

							<div class="form-row py-2">
								<div class="col">
									<label><p class="font-weight-bold">Sire ID:&nbsp;<span class="text-danger">*</span></p></label>
									<input type="number" name="sire_id" class="form-control" min="1" required>
								</div>
							</div>							
						</div>
					</div>
				</div>

				<div class="form-row">
					<div class="col">
						<label><p ><span class="font-weight-bold">Is castrated</span>
							&nbsp;&nbsp;<input type="checkbox" name="is_castrated">
							</p>
						</label>
					</div>	
				</div>

				<div class="form-row mt-3 pr-5">
					<button type="submit" class="font-weight-bold btn btn-success col-md-3 offset-md-9">Save</button>
				</div>
			</form>


		</div>
	</div>
{% endblock %}

02.txt

## models.py

from django.db import models

# Create your models here.
from django.contrib.auth.models import User

class GoatProfile(models.Model):
	
	STATUS = (
		('active','Active'),
		('sold','Sold'),
		('deceased','Deceased'),
		('lost','Lost'),
		('stolen','Stolen'),
	)

	GENDER = (
		('male','Male'),
		('female','Female'),
	)

	TAG_COLOR = (
		('yellow', 'Yellow'),
		('green', 'Green'),
		('orange', 'Orange'),
		('blue', 'Blue'),
	)

	CATEGORY = (
		('purchase', 'Purchase'),
		('birth', 'Birth'),
	)

	eartag_id = models.IntegerField(primary_key=True)
	eartag_color = models.CharField(max_length=250, choices=TAG_COLOR)
	gender = models.CharField(max_length=10, choices=GENDER)
	nickname = models.CharField(max_length=128)
	body_color = models.CharField(max_length=64)
	is_castrated = models.BooleanField()
	status = models.CharField(max_length=32, choices=STATUS, default='active')
	category = models.CharField(max_length=32, choices=CATEGORY)
	birth_date = models.DateField()

	class Meta:
		
		db_table = 'goat_profile'
		get_latest_by = 'birth_date'
		ordering = ('eartag_id',)

class Birth_record(models.Model):
	birth_id = models.AutoField(primary_key=True)
	dam = models.ForeignKey(GoatProfile, related_name='dam_profile', on_delete=models.CASCADE)
	sire = models.ForeignKey(GoatProfile, related_name='sire_profile', on_delete=models.CASCADE)
	eartag = models.ForeignKey(GoatProfile, related_name='offspring_profile', on_delete=models.CASCADE)

	class Meta:

		ordering = ('birth_id', 'eartag_id',)
		db_table = 'birth_record'
		get_latest_by = 'birth_id'

	def __str__(self):
		return "%d is the offspring of %d (dam) and %d (sire)"%(self.eartag_id, self.dam_id, self.sire_id)

class Purchase_record(models.Model):
	purchase_id = models.AutoField(primary_key=True)
	purchase_weight = models.DecimalField(decimal_places=2, max_digits=8)
	purchase_price = models.FloatField()
	purchase_date = models.DateField(auto_now=True)
	purchase_from = models.CharField(max_length=250)
	eartag = models.ForeignKey(GoatProfile, related_name='purchase_goat', on_delete=models.CASCADE)
	user = models.ForeignKey(User, related_name='goat_seller', on_delete=models.CASCADE)

	class Meta:

		ordering = ('purchase_id', '-purchase_date', 'eartag_id',)
		db_table = 'purchase_record'
		get_latest_by = 'purchase_date'	






## views.py

from django.shortcuts import render

# Create your views here.
from .models import GoatProfile, Birth_record, Purchase_record
from .forms import GoatInfoForm

def index(request):
	if request.method == 'POST':

		form = GoatInfoForm(request.POST) #{}

		if form.is_valid():
			print("\n\n\n\nForm Successfully Validated\n\n")
			cd = form.cleaned_data
			goat_info = {
				'eartag_id': cd['eartag_id'],
				'eartag_color': cd['eartag_color'],
				'nickname': cd['nickname'],
				'gender': cd['gender'],
				'body_color': cd['body_color'],
				'category': cd['category'],
				'is_castrated': cd['is_castrated'],				
			}

			data = {}
			#if cd['category'] == 'birth':
				
			#	data = {
			#		'sire': cd['sire_id'],
			#		'dam': cd['dam_id'],
			#		'eartag': cd['eartag_id']
			#	}

			#else:

			#	data = {
			#		'purchase_weight': cd['purchase_weight'],
			#		'purchase_price': cd['purchase_price'],
			#		'purchase_date': cd['purchase_date'],
			#		'purchase_from': cd['purchase_from'],
			#		'eartag_id': cd['eartag_id'],
			#		'user_id': request.user.id,
			#	}
	else:
		
		form =  GoatInfoForm()

	context = {
		'title': "Django: the Web framework for perfectionists with deadlines.",
		'form': form
	}	

	return render(request, 'index.html', context)

#def custom_404(request):


## forms.py

from django import forms

# Create your forms here.
from django.contrib.auth.models import User
import re

class GoatInfoForm(forms.Form):
	
#	STATUS = (
#		('active','Active'),
#		('sold','Sold'),
#		('deceased','Deceased'),
#		('lost','Lost'),
#		('stolen','Stolen'),
#	)

	GENDER = (
		(None, '-- Please Select --'),
		('male','Male'),
		('female','Female'),
	)

	TAG_COLOR = (
		(None, '-- Please Select --'),
		('yellow', 'Yellow'),
		('green', 'Green'),
		('orange', 'Orange'),
		('blue', 'Blue'),
	)

	CATEGORY = (
		('purchase', 'Purchase'),
		('birth', 'Birth'),
	)

	eartag_id = forms.IntegerField(min_value=1, widget=forms.widgets.NumberInput(attrs={'class':'form-control'}))
	eartag_color = forms.ChoiceField(choices=TAG_COLOR, widget=forms.widgets.Select(attrs={'class': 'form-control'}))
	nickname = forms.RegexField(regex='^[a-zA-Z]{3}[a-zA-Z ]+$', widget=forms.widgets.TextInput(attrs={'class': 'form-control'}))
	gender = forms.ChoiceField(choices=GENDER, widget=forms.widgets.Select(attrs={'class': 'form-control'}))
	body_color = forms.CharField(widget=forms.widgets.TextInput(attrs={'class': 'form-control'}))
	category = forms.ChoiceField(choices=CATEGORY, widget=forms.widgets.RadioSelect(attrs={'class': 'form-check-input'}))
	is_castrated = forms.BooleanField(required=False, widget=forms.widgets.CheckboxInput(attrs={'class': 'form-check-input'}))
	#user_id = forms.IntegerField(widget=forms.widgets.HiddenInput())
	#class Meta:







## index.html


{% extends 'app.html' %}

{% block content %}
<div class="container-fluid">
	<div class="row">
		<div class="col">
			<section>
				<form action="" method="POST">
					{% csrf_token %}
					<!--table>
						{{ form.as_table }}
					</table-->
					<input type="hidden" name="user_id" value="{{ user.id}}">
					<div class="form-row py-sm-2">

						<label class="col-form-label-sm col-12 col-sm-4 col-md-2">
							Eartag ID
						</label>
						<div class="col">
							<input type="number" name="eartag_id" min="1" value="" class="form-control" placeholder="Eartag ID" required>
						</div>
						
						<label class="col-form-label-sm col-12 col-sm-2 col-md-2 text-lg-center">
							Eartag Color
						</label>
						
						<div class="col">
							<select name="eartag_color" class="custom-select" required>
								<option value="">
									-- Please Select --
								</option>
								<option value="yellow">
									Yellow
								</option>
								<option value="green">
									Green
								</option>
								<option value="orange">
									Orange
								</option>
								<option value="blue">
									Blue
								</option>					
							</select>
						</div>

					</div>

					<div class="form-row py-sm-2">
						<label class="col-form-label-sm col-12 col-sm-4 col-md-2">
							Nickname
						</label>
						<div class="col">
							<input type="text" name="nickname" value="" class="form-control" placeholder="Nickname" required>
						</div>
					</div>

					<div class="form-row py-sm-2">
						<label class="col-form-label-sm col-12 col-sm-4 col-md-2">
							Body Color
						</label>
						<div class="col">
							<input type="text" name="body_color" value="" class="form-control" placeholder="Body Color" required>
						</div>
					</div>

					<div class="form-row py-sm-2">
						<label class="col-form-label-sm col-12 col-sm-4 col-md-2 ">
							Gender
						</label>
						
						<div class="col">
							<select name="gender" class="custom-select" required>
								<option value="">
									-- Please Select --
								</option>
								<option value="female">
									Female
								</option>
								<option value="male">
									Male
								</option>
							</select>
						</div>
					</div>

					<div class="form-row pt-sm-2">
						<label class="col-form-label-sm col-12 col-sm-4 col-md-2">
							Category
						</label>
						<div class="col">
							<div class="form-check form-check-inline">
								<input class="form-check-input" type="radio" name="category" value="birth" required>
								<label class="form-check-label">By Birth</label>
							</div>
							<div class="form-check form-check-inline">
								<input class="form-check-input" type="radio" name="category" value="purchase" required>
								<label class="form-check-label">By Purchase</label>
							</div>
						</div>
					</div>

					<div class="form-row">
						<label class="col-form-label-sm col-12 col-sm-4 col-md-2">
							Is castrated
						</label>
						
						<div class="col">
							<div class="container">
								<div class="row">
									<div class="col">
										<label class="px-1">
											<input type="checkbox" name="is_castrated" class="form-check-input">
											<span class="form-text text-muted form-check form-check-inline" style="top: -3px"><small>For sire only</small></span>
										</label>
									</div>
								</div>
							</div>
						</div>
					</div>	

					<div class="form-row">
						<button type="submit" class="font-weight-bolder btn btn-success col-md-3 offset-md-9" name="submit" id="save_btn" data-sys="save">Add New Goat</button>
					</div>
				</form>
			</section>
		</div>
	</div>
</div>
{% endblock %}





## app.html


<!DOCTYPE html>
<html>
{% load static %}
<head>
	<title>{{ title }}</title>
	<meta charset="utf-8">
	<link rel="stylesheet" type="text/css" href="{% static 'dist/css/bootstrap.min.css' %}">
</head>
<body>
	{% block content %}
	{% endblock %}

	<!-- BEGIN:STARTER_TEMPLATE-->
	<script src="{% static 'dist/js/jquery-3.3.1.slim.min.js' %}"></script>
	<script src="{% static 'dist/js/bootstrap.min.js' %}"></script>
	<script src="{% static 'dist/js/bootstrap.bundle.min.js' %}"></script>
	<!-- END:STARTER_TEMPLATE -->
</body>
</html>

must_watch.txt

https://­www.youtube.com/­watch?v=8TYZp9Z0vsU
https://ccbv.co.uk/ this web is very very useful, it shows you how to use the classes

render_to_pdf.txt

from io import BytesIO
from django.http import HttpResponse
from django.template.loader import get_template
from django.template import Context

from xhtml2pdf import pisa

def render_to_pdf(template_src, context_dict={}):
    template = get_template(template_src)

    html  = template.render(context_dict)

#    return HttpResponse(html)
    result = BytesIO()
    pdf = pisa.pisaDocument(BytesIO(html.encode("ISO-8859-1")), result)
    if not pdf.err:
        return HttpResponse(result.getvalue(), content_type='application/pdf')
    return None