Skip to main content

Parses a superset of Python allowing for inline module import ex

Project description

# querypp

[![Build Status](https://img.shields.io/travis/bmintz/querypp/master.svg?label=tests)](https://travis-ci.org/bmintz/querypp) [![Coverage Status](https://coveralls.io/repos/github/bmintz/querypp/badge.svg?branch=master)](https://coveralls.io/github/bmintz/querypp?branch=master)

querypp preprocesses SQL queries[1] in order to “parameterize” them. It also includes a loader which loads many queries from a file, delimited by – :name query_name lines.

[1] Although it is trivially adapted to other languages with line comments,

as the only SQL-specific assumption is the comment syntax.

Take an example:

` SELECT * FROM users -- :param profiles LEFT JOIN profiles USING (user_id) -- :param login_history LEFT JOIN login_history USING (profile_id) -- :endparam -- :endparam -- :param user_id WHERE user_id = $1 `

A Query object can be called:
  • with no parameters to return the entire query

  • with one or more parameters to return the query with only those parameters.

In this case, q(‘profiles’, ‘user_id’) would return the query with the login_history JOIN removed.

## Motivation

After moving all my SQL queries to separate files (using the load_sql function), I noticed that some of them were being duplicated except for one extra clause. I created this to allow me to deduplicate such queries.

## License

Public domain, see [COPYING](/COPYING)

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

querypp-0.0.1.tar.gz (4.2 kB view hashes)

Uploaded source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page