Nancyvarkey at 06:31, 28 June 2019

2019-06-28T06:31:23Z

Pravin1389 at 05:17, 26 June 2019

2019-06-26T05:17:03Z

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Pravin1389: Created page with "."

2019-06-26T05:09:00Z

Created page with "."

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@@ Line 42: / Line 42: @@
 * We can execute our '''project code''' in this '''shell.'''
 * We can manipulate our '''app models '''in this '''shell.'''
 |-
@@ Line 136: / Line 135: @@
 '''created_on=timezone.now()'''
 || '''created_on attribute '''is not needed while creating a''' new blog object.'''
 This is because we have already defined a default value for '''created_on attribute '''in '''models. '''
 For learning purpose, we have shown how to assign a value to '''created_on attribute.'''.
@@ Line 197: / Line 198: @@
 Type:
-blog.name = 'This is a blog from shell!' [Enter]
+blog.name = 'This is a blog from shell' [Enter]
 || Let us now change the name of our '''Blog object'''.
@@ Line 204: / Line 205: @@
-I have typed-''' “This is a blog from shell exclamation mark”.'''
+I have typed-''' “This is a blog from shell”.'''
 |-
 || [Terminal] Highlight
-'''blog.name = 'This is a Blog from shell!''''
+'''blog.name = 'This is a Blog from shell''''
 || This will change the name in the output as '''This is a Blog from shell.'''
 |-
@@ Line 219: / Line 220: @@
 || [Terminal] In Output, Highlight
-''''This is a Blog from shell!''''
+''''This is a Blog from shell''''
-|| We can see the name as ''''This is a Blog from shell!''''
+|| We can see the name as ''''This is a Blog from shell''''
@@ Line 291: / Line 292: @@
 return self.title'''
-|| We are now inside the '''models.py '''file.
+|| We are now in the '''models.py '''file.
-Add a '''string''' '''method''' below the '''class Blog '''and '''Article '''as shown here.
+Add a '''string method''' below the '''class Blog '''and '''Article '''as shown here.
-For ease of practise, this code is provided in the Code Files link of this tutorial.
+For ease of practice, this code is provided in the Code Files link of this tutorial.
@@ Line 307: / Line 308: @@
 '''def __str__(self):'''
-|| We define a '''String''' '''method''' inside the '''class''' to get '''string representation''' of the '''object.'''
+|| We define a '''String method''' inside the '''class''' to get '''string representation''' of the '''object.'''
 |-
 || [models.py]
@@ Line 407: / Line 408: @@
 |-
 || [models.py] Highlight '''timezone.timedelta'''
-|| '''timedelta''' expresses the duration difference between * two dates,
+|| '''timedelta''' expresses the duration difference between
 * two time inputs or
 * two date-time stamps.
 |-
@@ Line 416: / Line 417: @@
 '''from django.utils import timezone'''
-|| To store '''timezone '''information, we '''import package''' '''timezone '''from''' django dot utils module.'''
+|| To store '''timezone '''information, we '''import package timezone '''from''' django dot utils module.'''
 |-
 || [models.py]
@@ Line 423: / Line 424: @@
 '''def was_created_recently(self): return self.created_on >= timezone.now() - timezone.timedelta(days=1)'''
-|| The '''method''' “'''was created recently”''' checks whether the '''Blog''' is created more recent than a day.
+|| The '''"method was created recently”''' checks whether the '''Blog''' is created more recent than a day.
@@ Line 457: / Line 458: @@
-Let us retrieve a '''blog''' '''object '''by''' '''using '''get() method''' as shown here.
+Let us retrieve a '''blog object '''by using '''get() method''' as shown here.
 |-
 || [Terminal] Type:
@@ Line 501: / Line 502: @@
 '''blog2 = Blog.objects.filter(id=2)'''
 || Here, the '''Queryset''' is evaluated.
 Then, we fetch the result of a '''Blog object '''for which the '''id''' is two.
 Since the '''id '''is unique, we get only one result.
@@ Line 531: / Line 534: @@
 If we want a single blog object and it exists.
 |-
@@ Line 547: / Line 549: @@
 || [Terminal] In Output, Highlight
-'''<Blog: This is a Blog from shell!>'''
+'''<Blog: This is a Blog from shell>'''
 || It will return the '''Blog object''' referred by its '''id.'''
@@ Line 611: / Line 613: @@
 blog = Blog.objects.get(id=1) [Enter]
-|| For example, to get a '''Blog''' '''Object, '''use the''' get() lookup''' parameter.
+|| For example, to get a '''Blog Object, '''use the''' get() lookup''' parameter.
 Type the '''command''' as shown here.
@@ Line 635: / Line 637: @@
 blog1.id [Enter]
 || Also, we can access the information of the '''Blog object '''through it's related '''Article object.'''
 To do that, type the following '''command''' one by one as shown here.
@@ Line 656: / Line 659: @@
 In Output, Highlight '''(1, {‘blog.Blog’: 1, ‘blog.Article’: 0}) '''
 || In output, it returns the number of '''objects '''deleted.
 And a '''dictionary''' with the number of deletions per '''object type.'''
@@ Line 677: / Line 681: @@
 (pointing the Error)
 || '''get query''' will always return a single '''object'''.
 If there are more than one match or no match, then it will throw an '''error'''.
@@ Line 709: / Line 714: @@
 || Slide: Summary
 || In this tutorial, we have learnt to
 * Use the '''Django shell '''and
 * Create a '''Django Query'''
@@ Line 723: / Line 726: @@
 || Slide: About Spoken Tutorial project
 || The video at the following link summarises the Spoken Tutorial project.
 Please download and watch it.

Python-Django/C2/Django-Shell-and-Django-Database-Query/English - Revision history

Nancyvarkey at 06:31, 28 June 2019

Pravin1389 at 05:17, 26 June 2019

Pravin1389: Created page with "."