mongoengine - Query on ListField of EmbeddedDocumentField
1
I use mongoengine with Django and python.
This is my code:
class Chambre(EmbeddedDocument):
max_personne = IntField(default=0)
prix = IntField(default=0)
class Hotel(Document):
code = IntField(default=0)
nom = StringField(max_length=200)
chambre = ListField(EmbeddedDocumentField(Chambre))
resume = StringField(max_length=200)
1 - I want a query to filter all Hotel that have at least a Chambre with prix >= a (a floeat number)
2 - also have that Chambre
Any idea?
python django mongodb model mongoengine
add a comment |
1
I use mongoengine with Django and python.
This is my code:
class Chambre(EmbeddedDocument):
max_personne = IntField(default=0)
prix = IntField(default=0)
class Hotel(Document):
code = IntField(default=0)
nom = StringField(max_length=200)
chambre = ListField(EmbeddedDocumentField(Chambre))
resume = StringField(max_length=200)
1 - I want a query to filter all Hotel that have at least a Chambre with prix >= a (a floeat number)
2 - also have that Chambre
Any idea?
python django mongodb model mongoengine
add a comment |
1
1
1
I use mongoengine with Django and python.
This is my code:
class Chambre(EmbeddedDocument):
max_personne = IntField(default=0)
prix = IntField(default=0)
class Hotel(Document):
code = IntField(default=0)
nom = StringField(max_length=200)
chambre = ListField(EmbeddedDocumentField(Chambre))
resume = StringField(max_length=200)
1 - I want a query to filter all Hotel that have at least a Chambre with prix >= a (a floeat number)
2 - also have that Chambre
Any idea?
python django mongodb model mongoengine
I use mongoengine with Django and python.
This is my code:
class Chambre(EmbeddedDocument):
max_personne = IntField(default=0)
prix = IntField(default=0)
class Hotel(Document):
code = IntField(default=0)
nom = StringField(max_length=200)
chambre = ListField(EmbeddedDocumentField(Chambre))
resume = StringField(max_length=200)
1 - I want a query to filter all Hotel that have at least a Chambre with prix >= a (a floeat number)
2 - also have that Chambre
Any idea?
python django mongodb model mongoengine
python django mongodb model mongoengine
edited Jun 27 '17 at 20:51
asked Jun 27 '17 at 20:45
user8208945
add a comment |
add a comment |
1 Answer
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0
You can use the embedded notation as well as the Query Operator for "greater than or equal "
Hotel.objects(chambre__prix__gte=a)
Or if you need to cast as an integer:
Hotel.objects(chambre__prix__gte=int(math.floor(a)))
If you want to only project the "matched" element, use a raw query directly on the driver instead:
Hotel._get_collection().find(
{ 'chambre.prix': { '$gte': int(math.floor(a)) } },
{ 'chambre.$': 1 }
)
answered Jun 28 '17 at 1:23
Neil LunnNeil Lunn
98.2k23174184
and how to have this chambre also?
– user8208945
Jun 28 '17 at 5:51
@abinax No idea what you mean. Do you mean return only the entry of the array that matches the condition?
– Neil Lunn
Jun 28 '17 at 5:53
yeah, in the every Hotel.chambre there is chambre that have prix>a only
– user8208945
Jun 28 '17 at 5:59
@abinax As to the context of the question, I believe.fields(chambre__S=1)does the positional match here. See above. As for anything else outside of the scope of the question you asked, then please Ask a New Question instead.
– Neil Lunn
Jun 28 '17 at 6:07
I gor this :Exception Type: AttributeError Exception Value: 'str' object has no attribute 'db_field'
– user8208945
Jun 28 '17 at 6:23
|
show 3 more comments
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
You can use the embedded notation as well as the Query Operator for "greater than or equal "
Hotel.objects(chambre__prix__gte=a)
Or if you need to cast as an integer:
Hotel.objects(chambre__prix__gte=int(math.floor(a)))
If you want to only project the "matched" element, use a raw query directly on the driver instead:
Hotel._get_collection().find(
{ 'chambre.prix': { '$gte': int(math.floor(a)) } },
{ 'chambre.$': 1 }
)
answered Jun 28 '17 at 1:23
Neil LunnNeil Lunn
98.2k23174184
and how to have this chambre also?
– user8208945
Jun 28 '17 at 5:51
@abinax No idea what you mean. Do you mean return only the entry of the array that matches the condition?
– Neil Lunn
Jun 28 '17 at 5:53
yeah, in the every Hotel.chambre there is chambre that have prix>a only
– user8208945
Jun 28 '17 at 5:59
@abinax As to the context of the question, I believe.fields(chambre__S=1)does the positional match here. See above. As for anything else outside of the scope of the question you asked, then please Ask a New Question instead.
– Neil Lunn
Jun 28 '17 at 6:07
I gor this :Exception Type: AttributeError Exception Value: 'str' object has no attribute 'db_field'
– user8208945
Jun 28 '17 at 6:23
|
show 3 more comments
0
You can use the embedded notation as well as the Query Operator for "greater than or equal "
Hotel.objects(chambre__prix__gte=a)
Or if you need to cast as an integer:
Hotel.objects(chambre__prix__gte=int(math.floor(a)))
If you want to only project the "matched" element, use a raw query directly on the driver instead:
Hotel._get_collection().find(
{ 'chambre.prix': { '$gte': int(math.floor(a)) } },
{ 'chambre.$': 1 }
)
answered Jun 28 '17 at 1:23
Neil LunnNeil Lunn
98.2k23174184
and how to have this chambre also?
– user8208945
Jun 28 '17 at 5:51
@abinax No idea what you mean. Do you mean return only the entry of the array that matches the condition?
– Neil Lunn
Jun 28 '17 at 5:53
yeah, in the every Hotel.chambre there is chambre that have prix>a only
– user8208945
Jun 28 '17 at 5:59
@abinax As to the context of the question, I believe.fields(chambre__S=1)does the positional match here. See above. As for anything else outside of the scope of the question you asked, then please Ask a New Question instead.
– Neil Lunn
Jun 28 '17 at 6:07
I gor this :Exception Type: AttributeError Exception Value: 'str' object has no attribute 'db_field'
– user8208945
Jun 28 '17 at 6:23
|
show 3 more comments
0
0
0
You can use the embedded notation as well as the Query Operator for "greater than or equal "
Hotel.objects(chambre__prix__gte=a)
Or if you need to cast as an integer:
Hotel.objects(chambre__prix__gte=int(math.floor(a)))
If you want to only project the "matched" element, use a raw query directly on the driver instead:
Hotel._get_collection().find(
{ 'chambre.prix': { '$gte': int(math.floor(a)) } },
{ 'chambre.$': 1 }
)
answered Jun 28 '17 at 1:23
Neil LunnNeil Lunn
98.2k23174184
You can use the embedded notation as well as the Query Operator for "greater than or equal "
Hotel.objects(chambre__prix__gte=a)
Or if you need to cast as an integer:
Hotel.objects(chambre__prix__gte=int(math.floor(a)))
If you want to only project the "matched" element, use a raw query directly on the driver instead:
Hotel._get_collection().find(
{ 'chambre.prix': { '$gte': int(math.floor(a)) } },
{ 'chambre.$': 1 }
)
answered Jun 28 '17 at 1:23
Neil LunnNeil Lunn
98.2k23174184
edited Jun 28 '17 at 10:05
answered Jun 28 '17 at 1:23
Neil LunnNeil Lunn
98.2k23174184
answered Jun 28 '17 at 1:23
Neil LunnNeil Lunn
98.2k23174184
answered Jun 28 '17 at 1:23
Neil LunnNeil Lunn
98.2k23174184
98.2k23174184
and how to have this chambre also?
– user8208945
Jun 28 '17 at 5:51
@abinax No idea what you mean. Do you mean return only the entry of the array that matches the condition?
– Neil Lunn
Jun 28 '17 at 5:53
yeah, in the every Hotel.chambre there is chambre that have prix>a only
– user8208945
Jun 28 '17 at 5:59
@abinax As to the context of the question, I believe.fields(chambre__S=1)does the positional match here. See above. As for anything else outside of the scope of the question you asked, then please Ask a New Question instead.
– Neil Lunn
Jun 28 '17 at 6:07
I gor this :Exception Type: AttributeError Exception Value: 'str' object has no attribute 'db_field'
– user8208945
Jun 28 '17 at 6:23
|
show 3 more comments
and how to have this chambre also?
– user8208945
Jun 28 '17 at 5:51
@abinax No idea what you mean. Do you mean return only the entry of the array that matches the condition?
– Neil Lunn
Jun 28 '17 at 5:53
yeah, in the every Hotel.chambre there is chambre that have prix>a only
– user8208945
Jun 28 '17 at 5:59
@abinax As to the context of the question, I believe.fields(chambre__S=1)does the positional match here. See above. As for anything else outside of the scope of the question you asked, then please Ask a New Question instead.
– Neil Lunn
Jun 28 '17 at 6:07
I gor this :Exception Type: AttributeError Exception Value: 'str' object has no attribute 'db_field'
– user8208945
Jun 28 '17 at 6:23
and how to have this chambre also?
– user8208945
Jun 28 '17 at 5:51
and how to have this chambre also?
– user8208945
Jun 28 '17 at 5:51
@abinax No idea what you mean. Do you mean return only the entry of the array that matches the condition?
– Neil Lunn
Jun 28 '17 at 5:53
@abinax No idea what you mean. Do you mean return only the entry of the array that matches the condition?
– Neil Lunn
Jun 28 '17 at 5:53
yeah, in the every Hotel.chambre there is chambre that have prix>a only
– user8208945
Jun 28 '17 at 5:59
yeah, in the every Hotel.chambre there is chambre that have prix>a only
– user8208945
Jun 28 '17 at 5:59
@abinax As to the context of the question, I believe
.fields(chambre__S=1) does the positional match here. See above. As for anything else outside of the scope of the question you asked, then please Ask a New Question instead.– Neil Lunn
Jun 28 '17 at 6:07
@abinax As to the context of the question, I believe
.fields(chambre__S=1) does the positional match here. See above. As for anything else outside of the scope of the question you asked, then please Ask a New Question instead.– Neil Lunn
Jun 28 '17 at 6:07
I gor this :Exception Type: AttributeError Exception Value: 'str' object has no attribute 'db_field'
– user8208945
Jun 28 '17 at 6:23
I gor this :Exception Type: AttributeError Exception Value: 'str' object has no attribute 'db_field'
– user8208945
Jun 28 '17 at 6:23
|
show 3 more comments
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