Autogenerated Queries
Writing query documents can get out of control. Djongo does the heavy lifting of creating query documents for you.
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JSON
into the database is scary. Djongo secures and validates the
JSON
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Queries
self.db['entry'].aggregate(
[{
'$match': {
'author_id': {
'$ne': None,
'$exists': True
}
}
},
{
'$lookup': {
'from': 'author',
'localField': 'author_id',
'foreignField': 'id',
'as': 'author'
}
},
{
'$unwind': '$author'
},
{
'$lookup': {
'from': 'blog',
'localField': 'blog_id',
'foreignField': 'id',
'as': 'blog'
}
},
{
'$unwind': {
'path': '$blog',
'preserveNullAndEmptyArrays': True
}
},
{
'$addFields': {
'blog': {
'$ifNull': ['$blog', {
'id': None,
'title': None
}]
}
}
},
{
'$match': {
'author.name': {
'$eq': 'Paul'
}
}
},
{
'$project': {
'id': True,
'blog_id': True,
'author_id': True,
'content': True,
'blog.id': True,
'blog.title': True
}
}]
qs = Entry.objects.filter(author__name='Paul').select_related('blog')
Djongo generates complex, error free, aggregation queries automatically.
It takes the query on the top and automatically generates the pymongo query document as the output.
Djongo Commercial License
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Modify the djongo source code without requiring to open source your modifications.
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Include and redistribute the djongo package without having to open source your own code.
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Prototyping
Set enforce_schema to True in settings.py to enable schema checks at the database level.
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