Skip to main content
Join the official Python Developers Survey 2018 and win valuable prizes: Start the survey!

A simple package for generating mdx scripts

Project description

This is a simple library to help building .mdx scripts. It is composed by:

  • A simple syntax module to generate mdx
  • Functions to generate mdx sets from lists, .json arrays or prefined .mdx sets
  • A writer class and a writer context manager

Installation

pip install mdx

Usage

# Usage
from mdx import syntax as s
from mdx import MDXSetConstructor, writerContext
from mdx import loadJson, loadMDX

toyCodeBuilder = MDXSetConstructor(memberPath="[Products].[ProductName]", comment="Product Codes")
colorCodeBuilder = MDXSetConstructor(memberPath="[Colors]", comment="Color Codes")

toys = {
  'dolls' : toyCodeBuilder(codeList=[1,2,3], listName="toy dolls")
}

colors = {
  'blue' : colorCodeBuilder(codeList=['blue', 'cyan'], listName="blues")
}

# Loads .mdx files in path
# Each file becomes available as a tuple member with the file name as key
toys = loadMDX(
  "path/to/toys",
  extraMembers = toys, # Add extra members defined by hand
  toyCodeBuilder
)

# Loads .json files in path
# Each file becomes available as a member of a named tuple with the file name as field
colors = loadJSON(
  "path/to/colors",
  extraMembers = colors,  # Add extra members defined by hand
  colorCodeBuilder
)

# The first two arguments are passed automatically by the context manager
@measure
def volume(writer, sets, name, *expressions, **kwargs):

  # Perform some common .mdx operations here...

  writer.write(
    s.createMeasure(s.measureMember(name),
      s.sumExisting('[Measures].[PurchaseCount]', s.intersect(*expressions)
      )
    )
  )

writer = MDXWriter(name='writer', path='./interestingToys') # by default the path is set on config["OUTPUT_FOLDER"]

# Putting it all together
with writerContext((toys, colors), writer) as (measures, config):

  measures(volume)(
    # the writer and set variables are passed to the measure after the arguments
    'volume of interesting toy purchases',
    s.tuple(toys.dolls, colors.blue),
    s.exclude(
      s.tuple(toys.cars, colors.any),
      s.tuple(toys.cars, colors.red),
    )
  )

# The output will be available at ./interestingToys.mdx

# Configuration options
from mdx import config
config["OUTPUT_FOLDER"] = "./path/to/folder"
config["LIST_BASE_PATH"] = "./path/to/folder"
config["TAB_SIZE"] = 2

Project details


Release history Release notifications

This version
History Node

0.1

Download files

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

Filename, size & hash SHA256 hash help File type Python version Upload date
mdx-0.1.tar.gz (18.6 kB) Copy SHA256 hash SHA256 Source None Dec 30, 2015

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN SignalFx SignalFx Supporter DigiCert DigiCert EV certificate StatusPage StatusPage Status page