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# Inspired by http://liuhongjiang.github.io/hexotech/2015/10/14/alembic-support-multiple-model-files/

def combine_metadata():
    from sqlalchemy import MetaData
    import models  # models file into which all models are imported

    model_classes = []
    for model_name in models.__all__:
        model_classes.append(getattr(models, model_name))

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Remove white background color of an image in ImageMagick

$ convert  your.jpg  -transparent white  your.png

Flatten a transparent image with a white background:

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Goal: Connect to MSSQL using FreeTDS / ODBC in Python.

Host: Ubuntu 11.10 x86_64

Install:

sudo apt-get install freetds-dev freetds-bin unixodbc-dev tdsodbc
pip install pyodbc sqlalchemy

In /etc/odbcinst.ini:

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Movies Recommendation:

• MovieLens - Movie Recommendation Data Sets http://www.grouplens.org/node/73
• Yahoo! - Movie, Music, and Images Ratings Data Sets http://webscope.sandbox.yahoo.com/catalog.php?datatype=r
• Jester - Movie Ratings Data Sets (Collaborative Filtering Dataset) http://www.ieor.berkeley.edu/~goldberg/jester-data/
• Cornell University - Movie-review data for use in sentiment-analysis experiments http://www.cs.cornell.edu/people/pabo/movie-review-data/

Music Recommendation:

• Last.fm - Music Recommendation Data Sets http://www.dtic.upf.edu/~ocelma/MusicRecommendationDataset/index.html

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Products

index of products 25 first

curl -i -H "X-Spree-Token: YOUR_TOKEN_ID" http://0.0.0.0:3000/api/products.json

Show a product

curl -i -H "X-Spree-Token: YOUR_TOKEN_ID" http://0.0.0.0:3000/api/products/706676762.json

Modify a product

curl -i -X PUT -H "X-Spree-Token: YOUR_TOKEN_ID" -d "product[name]=Headphones" http://0.0.0.0:3000/api/products/706676762.json

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Prereq:

apt-get install zsh
apt-get install git-core

Getting zsh to work in ubuntu is weird, since sh does not understand the source command. So, you do this to install zsh

wget https://github.com/robbyrussell/oh-my-zsh/raw/master/tools/install.sh -O - | zsh

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A warning occurred (42 apples)
An error occurred

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Ruby ORMs

Abstract

Rails is really a collection of pieces that can be put together to create a web app. You can enhance or replace many of the components - how you write views, how controllers work, and how you build models. While models are built on top of ActiveRecord in the

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#!/usr/bin/ruby
#
# This script fixes /usr/local only.
#
# 6th January 2010:
#   Modified the script to just fix, rather than install. - rpavlik
#
# 30th March 2010:
#   Added a check to make sure user is in the staff group. This was a problem
#   for me, and I think it was due to me migrating my account over several

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#!/bin/bash

find . \( -iname '*.rb' -o -iname '*.css' -o -iname '*.js' -o -iname '*.erb' -o -iname '*.html' -o -iname '*.haml' -o -iname '*.scss' -o -iname '*.coffee' \) -exec wc -l {} + | sort -n