django operational error

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Sara Sofía
08 Jan 2017
1In the case of an Operational Error in django you HAVE TO do the following :-
20) Reload the site
3Still not solved
41) Delete the migrations folder and pycache folder
5Still not solved
62) Reload the site
72) python manage.py makemigrations, then python manage.py migrate.
83) Reload the site
9Still not solved
104) python manage.py makemigrations appNameHere, then python manage.py migrate appNameHere
11Still not solved
125) Then reload the site
13Still not solved
146) Now, remove the row which was giving you the error, class y(Models.model):
15a = models.CharField(default='Let us say default')
16b = ....
17Yes, remove the one giving you the error, for example, it is saying
18
19OperationalError at /admin/blog/blogpost/ no such column: table_table.a
20then remove the thing coming after the dot
21a in this case
22remove it so that only 
23b = ....
24is left in the model
25It is happening  because that column was left null. You have to delete the column it self (NOT THE MODEL INSTANCE)
26Then once you are able to get in you have to add the field again.
27Then you can fill the nulled part up with something 
28
29Still not solved
30
315) Reload the site
32	
33					The final tip
34
35					Reload the site
36
37The problem should be solved!!
38
39Subscribe to GuruTheCoder
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