WEBVTT
Kind: captions
Language: en

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Next we're going to create a serializer
for our profile feed item objects open

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up the serializers dot py file and at
the bottom let's create a new class

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called class profile feed item
serializer

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we're going to base our class

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from serializers dot model serializer

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then in the doc string let's type

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serializes profile feed items and we're
going to set our model serializer to our

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profile feed item class so create class
meta model equals models dot profile

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feed item

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this sets our serializer or our model serializer

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to our profile feed item model that we
created in models dot py

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our profile feed

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item has three fields that we've added
here one is the user profile that is

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associated to the feed item the next one
is the status text and finally we have

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the created on so the user profile is
the profile that owns or created the

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profile feed item the status text will
be the content of the feed item so kind

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of like a status update and the created
on is automatically set to a date time

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field with the current time that the
item was created

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so we need to make

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these fields available through our
serializer

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type fields equals and I

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always like to include the ID so we can
use that to retrieve specific objects

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and by default Django adds a primary key
ID to all models that you create so the

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first one we're going to set is ID and
then we'll put the user underscore

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profile and then status underscore text
and then created underscore on so

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because the ID is set up by Django by
default it's automatically set to read

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only so when you create a new object the
new ID is created by the database and it is

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set to the next available integer field
or integer value in the table so just

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increases for every object you create
the created on is automatically set as

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well it's automatically set to the time
that it's created so that will by default

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be read-only so the only fields that
will be writable in our serializer in

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its current state are the user profile
and the status text however we don't

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want the users to be able to set the
user profile when they create a new feed

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item we want to set the user profile
based on the user that is authenticated

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so I don't want to be able to create...
or I don't want one user to be able to

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create a new profile feed item and
assign that to another user because that

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would be a security flaw in the system
so we want to set this to the

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authenticated user and therefore we're
going to make the user profile field

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read-only

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so that means that when we list the objects we can see which users

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created which feed items but when we
create an object it can only be assigned

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to the current user that is authenticated

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so below the fields we're going to set a

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new value called extra underscore kwargs equals and then we set this to a

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dictionary and this is how you add extra
keyword arguments to fields and we're

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going to set extra arguments to the user underscore profile field and the

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arguments we're going to set are read
underscore only and we're going to set that

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to true so this allows us to set the
user profile field to read-only in our

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model serializer

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okay so save the file and that's all we

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need to do to create a serializer for
our profile feed item objects