https://github.com/prashnts/mongocapsule

📦 Encapsulated MongoEngine
https://github.com/prashnts/mongocapsule

mongodb mongoengine orm python

Last synced: about 1 month ago
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📦 Encapsulated MongoEngine

• Host: GitHub
• URL: https://github.com/prashnts/mongocapsule
• Owner: prashnts
• License: mit
• Created: 2016-06-28T09:46:20.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2020-11-03T12:40:45.000Z (almost 4 years ago)
• Last Synced: 2024-07-07T14:21:06.779Z (2 months ago)
• Topics: mongodb, mongoengine, orm, python
• Language: Python
• Homepage:
• Size: 12.7 KB
• Stars: 19
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG
  • License: LICENSE.md

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README

        
# MongoCapsule

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## Overview

MongoCapsule is a very thin wrapper around MongoEngine built for your happiness. It encapsulates MongoEngine attributes under a single namespace and hence allows explicit declaration without context switches.

In addition to that, MongoCapsule adds pagination support to all the query results.

MongoEngine is a great ORM for using MongoDB in any Python project. However, since MongoEngine works in "contexts", using multiple databases requires trickery such as `db_alias` and `switch_db`. MongoCapsule solves this by attaching references to MongoEngine attributes to itself.

## Quickstart

If you are familiar with MongoEngine, you can use MongoCapsule already! Create the database object and use it to define your document and fields.

```python

from mongocapsule import MongoCapsule

db = MongoCapsule('test_db')

class Fruits(db.Document):

    name = db.StringField()

```

Refer to [MongoEngine Docs](http://docs.mongoengine.org/index.html) for details.

## Installation

To install use pip:

```bash

    pip install mongocapsule

```

Or clone the repo:

```bash

    git clone https://github.com/prashnts/mongocapsule.git

    python setup.py install

```

## Additional API

MongoCapsule adds Pagination support to the MongoEngine `QuerySet` object. It returns 10 objects per page, however, this can be changed.

```python

# Obtain nth Page of any arbitrary query:

query_results = Document.objects(...).sort(...)

result_page = query_results.page(2)     # Obtain second page

total_pages = query_results.page_count

# Update number of items returned per page:

db.QuerySet.set_page_limit(20)

```

## Contributing

Code Patches, suggestions and bug reports welcome! Please use GitHub issues for the same.

## Rant

I wrote this module because the examples in official MongoEngine documentation encourages using `from mongoengine import *` which not only pollutes the local namespace, but makes class definitions implicit. Of course, cherrypicked imports are possible, however that requires a lot of extra imports in each files.

The biggest problem, however, comes when you're using multiple databases or hosts -- in those cases, you need to use context switches or ugly `meta` attributes in the declaration.