how to serialize objects with specific fields using serializers.serialize in django?
-1
I want to serialize django models for only some specific fields. How do I do that. I have a model as below:
class Person(models.Model):
first_name = models.CharField(max_length=20)
last_name = models.CharField(max_length=20)
def __str__(self):
return self.first_name
I am using serailizer as:
from django.core import serializers
serializers.serialize('json', Person.objects.all(), content_type='application/json')
My output is:
[
{
model: "myapp.Person",
pk: 1,
fields: {
"first_name": "hello",
"last_name": "world"
}
}
]
I want to serialize this model only for first_name and output must be as below:
[
{
model: "myapp.Person",
pk: 1,
fields: {
"first_name": "hello"
}
}
]
python django
asked Nov 25 '18 at 10:31
dip bazzdip bazz
459
|
show 1 more comment
-1
I want to serialize django models for only some specific fields. How do I do that. I have a model as below:
class Person(models.Model):
first_name = models.CharField(max_length=20)
last_name = models.CharField(max_length=20)
def __str__(self):
return self.first_name
I am using serailizer as:
from django.core import serializers
serializers.serialize('json', Person.objects.all(), content_type='application/json')
My output is:
[
{
model: "myapp.Person",
pk: 1,
fields: {
"first_name": "hello",
"last_name": "world"
}
}
]
I want to serialize this model only for first_name and output must be as below:
[
{
model: "myapp.Person",
pk: 1,
fields: {
"first_name": "hello"
}
}
]
python django
asked Nov 25 '18 at 10:31
dip bazzdip bazz
459
1
To do what? If you just writePerson.objects.all(), then you get the desirded queryset, so I do not really understand the problem. Note thatQueryset.values()does not construct a dictionary, but a queryset of dictionaries.
– Willem Van Onsem
Nov 25 '18 at 10:36
I do not understand what <QuerySet [<Person: Hello>]> means? Hello is a string how to map it to Person object? and even it happened this is not the pattern of list. Question is totally wrong.
– Rarblack
Nov 25 '18 at 10:45
@WillemVanOnsem I just want to serialize the returned queryset from database using django.core.serializers.Serialize for only specific fields. so if i query my database using .values() i get queryset of dictionaries which raises 'dict' object has no attribute '_meta' but it works fine with queryset returned from .all()
– dip bazz
Nov 25 '18 at 10:55
@Rarblack <QuerySet [<Person: Hello>]> means I guess its a object. Hello is returned by str function from model though its an object representing a Person.
– dip bazz
Nov 25 '18 at 10:58
1
@dip bazz, if you want to use Django serializers, then ask question about that! Use field argument in serializer if you only want a subset of fields.
– Borut
Nov 25 '18 at 12:00
|
show 1 more comment
-1
-1
-1
I want to serialize django models for only some specific fields. How do I do that. I have a model as below:
class Person(models.Model):
first_name = models.CharField(max_length=20)
last_name = models.CharField(max_length=20)
def __str__(self):
return self.first_name
I am using serailizer as:
from django.core import serializers
serializers.serialize('json', Person.objects.all(), content_type='application/json')
My output is:
[
{
model: "myapp.Person",
pk: 1,
fields: {
"first_name": "hello",
"last_name": "world"
}
}
]
I want to serialize this model only for first_name and output must be as below:
[
{
model: "myapp.Person",
pk: 1,
fields: {
"first_name": "hello"
}
}
]
python django
asked Nov 25 '18 at 10:31
dip bazzdip bazz
459
I want to serialize django models for only some specific fields. How do I do that. I have a model as below:
class Person(models.Model):
first_name = models.CharField(max_length=20)
last_name = models.CharField(max_length=20)
def __str__(self):
return self.first_name
I am using serailizer as:
from django.core import serializers
serializers.serialize('json', Person.objects.all(), content_type='application/json')
My output is:
[
{
model: "myapp.Person",
pk: 1,
fields: {
"first_name": "hello",
"last_name": "world"
}
}
]
I want to serialize this model only for first_name and output must be as below:
[
{
model: "myapp.Person",
pk: 1,
fields: {
"first_name": "hello"
}
}
]
python django
python django
asked Nov 25 '18 at 10:31
dip bazzdip bazz
459
asked Nov 25 '18 at 10:31
dip bazzdip bazz
459
edited Dec 7 '18 at 10:58
dip bazz
asked Nov 25 '18 at 10:31
dip bazzdip bazz
459
asked Nov 25 '18 at 10:31
dip bazzdip bazz
459
asked Nov 25 '18 at 10:31
dip bazzdip bazz
459
459
1
To do what? If you just writePerson.objects.all(), then you get the desirded queryset, so I do not really understand the problem. Note thatQueryset.values()does not construct a dictionary, but a queryset of dictionaries.
– Willem Van Onsem
Nov 25 '18 at 10:36
I do not understand what <QuerySet [<Person: Hello>]> means? Hello is a string how to map it to Person object? and even it happened this is not the pattern of list. Question is totally wrong.
– Rarblack
Nov 25 '18 at 10:45
@WillemVanOnsem I just want to serialize the returned queryset from database using django.core.serializers.Serialize for only specific fields. so if i query my database using .values() i get queryset of dictionaries which raises 'dict' object has no attribute '_meta' but it works fine with queryset returned from .all()
– dip bazz
Nov 25 '18 at 10:55
@Rarblack <QuerySet [<Person: Hello>]> means I guess its a object. Hello is returned by str function from model though its an object representing a Person.
– dip bazz
Nov 25 '18 at 10:58
1
@dip bazz, if you want to use Django serializers, then ask question about that! Use field argument in serializer if you only want a subset of fields.
– Borut
Nov 25 '18 at 12:00
|
show 1 more comment
1
To do what? If you just writePerson.objects.all(), then you get the desirded queryset, so I do not really understand the problem. Note thatQueryset.values()does not construct a dictionary, but a queryset of dictionaries.
– Willem Van Onsem
Nov 25 '18 at 10:36
I do not understand what <QuerySet [<Person: Hello>]> means? Hello is a string how to map it to Person object? and even it happened this is not the pattern of list. Question is totally wrong.
– Rarblack
Nov 25 '18 at 10:45
@WillemVanOnsem I just want to serialize the returned queryset from database using django.core.serializers.Serialize for only specific fields. so if i query my database using .values() i get queryset of dictionaries which raises 'dict' object has no attribute '_meta' but it works fine with queryset returned from .all()
– dip bazz
Nov 25 '18 at 10:55
@Rarblack <QuerySet [<Person: Hello>]> means I guess its a object. Hello is returned by str function from model though its an object representing a Person.
– dip bazz
Nov 25 '18 at 10:58
1
@dip bazz, if you want to use Django serializers, then ask question about that! Use field argument in serializer if you only want a subset of fields.
– Borut
Nov 25 '18 at 12:00
1
1
To do what? If you just write
Person.objects.all(), then you get the desirded queryset, so I do not really understand the problem. Note that Queryset.values() does not construct a dictionary, but a queryset of dictionaries.– Willem Van Onsem
Nov 25 '18 at 10:36
To do what? If you just write
Person.objects.all(), then you get the desirded queryset, so I do not really understand the problem. Note that Queryset.values() does not construct a dictionary, but a queryset of dictionaries.– Willem Van Onsem
Nov 25 '18 at 10:36
I do not understand what <QuerySet [<Person: Hello>]> means? Hello is a string how to map it to Person object? and even it happened this is not the pattern of list. Question is totally wrong.
– Rarblack
Nov 25 '18 at 10:45
I do not understand what <QuerySet [<Person: Hello>]> means? Hello is a string how to map it to Person object? and even it happened this is not the pattern of list. Question is totally wrong.
– Rarblack
Nov 25 '18 at 10:45
@WillemVanOnsem I just want to serialize the returned queryset from database using django.core.serializers.Serialize for only specific fields. so if i query my database using .values() i get queryset of dictionaries which raises 'dict' object has no attribute '_meta' but it works fine with queryset returned from .all()
– dip bazz
Nov 25 '18 at 10:55
@WillemVanOnsem I just want to serialize the returned queryset from database using django.core.serializers.Serialize for only specific fields. so if i query my database using .values() i get queryset of dictionaries which raises 'dict' object has no attribute '_meta' but it works fine with queryset returned from .all()
– dip bazz
Nov 25 '18 at 10:55
@Rarblack <QuerySet [<Person: Hello>]> means I guess its a object. Hello is returned by str function from model though its an object representing a Person.
– dip bazz
Nov 25 '18 at 10:58
@Rarblack <QuerySet [<Person: Hello>]> means I guess its a object. Hello is returned by str function from model though its an object representing a Person.
– dip bazz
Nov 25 '18 at 10:58
1
1
@dip bazz, if you want to use Django serializers, then ask question about that! Use field argument in serializer if you only want a subset of fields.
– Borut
Nov 25 '18 at 12:00
@dip bazz, if you want to use Django serializers, then ask question about that! Use field argument in serializer if you only want a subset of fields.
– Borut
Nov 25 '18 at 12:00
|
show 1 more comment
1 Answer
1
active
oldest
votes
0
Person.objects.all() also has the first_name value in it. You can access it via:
for p in Person.objects.all():
p.first_name
Please read the documentation for more details.
Update:
For serialization, try like this:
serializers.serialize("json", Person.objects.all(), fields=["first_name", "last_name"])
answered Nov 25 '18 at 10:35
ruddraruddra
13.3k32648
Actually I get a column name from somewhere like:columns = get_column_name(model=ModelName)and use it as:query = Person.objects.values(*columns)So I'm looking for a way to get back an object from the database asPerson.objects.all()returns butPerson.objects.values()return queryset of dictionaries.
– dip bazz
Nov 25 '18 at 11:17
@dipbazz please see my updated answer.
– ruddra
Nov 25 '18 at 12:03
add a comment |
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Person.objects.all() also has the first_name value in it. You can access it via:
for p in Person.objects.all():
p.first_name
Please read the documentation for more details.
Update:
For serialization, try like this:
serializers.serialize("json", Person.objects.all(), fields=["first_name", "last_name"])
answered Nov 25 '18 at 10:35
ruddraruddra
13.3k32648
Actually I get a column name from somewhere like:columns = get_column_name(model=ModelName)and use it as:query = Person.objects.values(*columns)So I'm looking for a way to get back an object from the database asPerson.objects.all()returns butPerson.objects.values()return queryset of dictionaries.
– dip bazz
Nov 25 '18 at 11:17
@dipbazz please see my updated answer.
– ruddra
Nov 25 '18 at 12:03
add a comment |
0
Person.objects.all() also has the first_name value in it. You can access it via:
for p in Person.objects.all():
p.first_name
Please read the documentation for more details.
Update:
For serialization, try like this:
serializers.serialize("json", Person.objects.all(), fields=["first_name", "last_name"])
answered Nov 25 '18 at 10:35
ruddraruddra
13.3k32648
Actually I get a column name from somewhere like:columns = get_column_name(model=ModelName)and use it as:query = Person.objects.values(*columns)So I'm looking for a way to get back an object from the database asPerson.objects.all()returns butPerson.objects.values()return queryset of dictionaries.
– dip bazz
Nov 25 '18 at 11:17
@dipbazz please see my updated answer.
– ruddra
Nov 25 '18 at 12:03
add a comment |
0
0
0
Person.objects.all() also has the first_name value in it. You can access it via:
for p in Person.objects.all():
p.first_name
Please read the documentation for more details.
Update:
For serialization, try like this:
serializers.serialize("json", Person.objects.all(), fields=["first_name", "last_name"])
answered Nov 25 '18 at 10:35
ruddraruddra
13.3k32648
Person.objects.all() also has the first_name value in it. You can access it via:
for p in Person.objects.all():
p.first_name
Please read the documentation for more details.
Update:
For serialization, try like this:
serializers.serialize("json", Person.objects.all(), fields=["first_name", "last_name"])
answered Nov 25 '18 at 10:35
ruddraruddra
13.3k32648
edited Nov 25 '18 at 12:01
answered Nov 25 '18 at 10:35
ruddraruddra
13.3k32648
answered Nov 25 '18 at 10:35
ruddraruddra
13.3k32648
answered Nov 25 '18 at 10:35
ruddraruddra
13.3k32648
13.3k32648
Actually I get a column name from somewhere like:columns = get_column_name(model=ModelName)and use it as:query = Person.objects.values(*columns)So I'm looking for a way to get back an object from the database asPerson.objects.all()returns butPerson.objects.values()return queryset of dictionaries.
– dip bazz
Nov 25 '18 at 11:17
@dipbazz please see my updated answer.
– ruddra
Nov 25 '18 at 12:03
add a comment |
Actually I get a column name from somewhere like:columns = get_column_name(model=ModelName)and use it as:query = Person.objects.values(*columns)So I'm looking for a way to get back an object from the database asPerson.objects.all()returns butPerson.objects.values()return queryset of dictionaries.
– dip bazz
Nov 25 '18 at 11:17
@dipbazz please see my updated answer.
– ruddra
Nov 25 '18 at 12:03
Actually I get a column name from somewhere like:
columns = get_column_name(model=ModelName) and use it as: query = Person.objects.values(*columns) So I'm looking for a way to get back an object from the database as Person.objects.all() returns but Person.objects.values() return queryset of dictionaries.– dip bazz
Nov 25 '18 at 11:17
Actually I get a column name from somewhere like:
columns = get_column_name(model=ModelName) and use it as: query = Person.objects.values(*columns) So I'm looking for a way to get back an object from the database as Person.objects.all() returns but Person.objects.values() return queryset of dictionaries.– dip bazz
Nov 25 '18 at 11:17
@dipbazz please see my updated answer.
– ruddra
Nov 25 '18 at 12:03
@dipbazz please see my updated answer.
– ruddra
Nov 25 '18 at 12:03
add a comment |
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1
To do what? If you just write
Person.objects.all(), then you get the desirded queryset, so I do not really understand the problem. Note thatQueryset.values()does not construct a dictionary, but a queryset of dictionaries.– Willem Van Onsem
Nov 25 '18 at 10:36
I do not understand what <QuerySet [<Person: Hello>]> means? Hello is a string how to map it to Person object? and even it happened this is not the pattern of list. Question is totally wrong.
– Rarblack
Nov 25 '18 at 10:45
@WillemVanOnsem I just want to serialize the returned queryset from database using django.core.serializers.Serialize for only specific fields. so if i query my database using .values() i get queryset of dictionaries which raises 'dict' object has no attribute '_meta' but it works fine with queryset returned from .all()
– dip bazz
Nov 25 '18 at 10:55
@Rarblack <QuerySet [<Person: Hello>]> means I guess its a object. Hello is returned by str function from model though its an object representing a Person.
– dip bazz
Nov 25 '18 at 10:58
1
@dip bazz, if you want to use Django serializers, then ask question about that! Use field argument in serializer if you only want a subset of fields.
– Borut
Nov 25 '18 at 12:00