QuerySet object of MongoEngine has exec_js() method that allows execution of a Javascript function on MongoDB server. This function...
QuerySet object of MongoEngine has exec_js() method that allows execution of a Javascript function on MongoDB server. This function...
The QuerySet object possesses following useful methods for querying the database. first() First document satisfying the query is returned....
The QuerySet object possesses following useful methods for querying the database. first() First document satisfying the query is returned....
An indexed collection results in faster processing of queries. By default, every collection is automatically indexed on _id field....
An indexed collection results in faster processing of queries. By default, every collection is automatically indexed on _id field....
In order to get more efficiency in retrieving a subset of fields in a document, use only() method of...
In order to get more efficiency in retrieving a subset of fields in a document, use only() method of...
The connect() function returns a MongoClient object. Using list_database_names() method available to this object, we can retrieve number of...
The connect() function returns a MongoClient object. Using list_database_names() method available to this object, we can retrieve number of...
The objects attribute is a QuerySet manager. It creates and returns a QuerySet when accessed. A query can be...
The objects attribute is a QuerySet manager. It creates and returns a QuerySet when accessed. A query can be...
In addition to = operator to check equality, the following logical operators are defined in MongoEngine. ne not equal...
In addition to = operator to check equality, the following logical operators are defined in MongoEngine. ne not equal...
One of the advantages of MongoDB database is that it supports dynamic schema. To create a class that supports...
One of the advantages of MongoDB database is that it supports dynamic schema. To create a class that supports...
A MongoEngine document class has one or more attributes. Each attribute is an object of Field class. BaseField is...
A MongoEngine document class has one or more attributes. Each attribute is an object of Field class. BaseField is...
We have already used save() method of Document class to add a document in the collection. The save() method...
We have already used save() method of Document class to add a document in the collection. The save() method...