This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
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Project Description

link.dbrequest is a database agnostic query system.

See documentation for more informations.

Installation

pip install link.dbrequest

Features

  • database agnostic
  • lazy query resolving
  • cached queries
  • queries are unique

Examples

Getting a backend:

from link.middleware.core import Middleware

# Will open a QueryManager using a MongoDB backend
manager = Middleware.get_middleware_by_uri('query+mongo://localhost:27107/mydatabase/mycollection')
# Will open a QueryManager using a SQL backend
manager = Middleware.get_middleware_by_uri('query+sql://localhost:5432/mydatabase/mytable')

Operations on the backend:

from link.dbrequest.expression import E, F
from link.dbrequest.assignment import A
from link.dbrequest.comparison import C


query = manager.all()  # get an iterable over all elements

manager.create(A('foo', 'bar'))  # put document {'foo': 'bar'} into database

doc = manager.get(C('foo') != 'bar')  # get single element, or None

Operations on queries:

docs = list(query)  # iterate over query to execute the request
docs = list(query)  # use cache when iterating again

# create a new query from the first one
q2 = query.filter(C('foo') == 'bar')
assert query is not q2

# exclude documents without a field named "bar"
q3 = q2.exclude(~C('bar'))

# filter documents "weight > 5" and "prop1 < prop2 * 5"
q4 = q3.filter((C('weight') > 5) & (C('prop1') < (E('prop2') * 5)))

# set "prop3 = prop1 + prop2" on q2 result
docs = q2.update(A('prop3', E('prop1') + E('prop2')))

# delete documents
q3.delete()

Operations on documents:

# save/delete a single document
doc.save()
doc.delete()

Donating

Release History

Release History

0.19

This version

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0.18

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0.17

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0.16

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0.15

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0.14

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0.13

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0.12

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0.11

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0.10

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0.9

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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0.8

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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0.7

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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0.5

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0.4

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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0.3

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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0.2

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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0.1

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
link.dbrequest-0.19-py2.py3-none-any.whl (29.1 kB) Copy SHA256 Checksum SHA256 3.4 Wheel Sep 2, 2016
link.dbrequest-0.19.tar.gz (17.6 kB) Copy SHA256 Checksum SHA256 Source Sep 2, 2016

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