seamusabshere/cohort_scope

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Ruby
License
MIT License
Created about 14 years ago
Updated about 12 years ago

seamusabshere/cohort_scope

seamusabshere

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DEPRECATED. Use cohort_analysis. Provides cohorts (in the form of ActiveRecord scopes) that dynamically widen until they contain a certain number of records.

fuzzy_match

Find a needle (a document or record) in a haystack using string similarity and (optionally) regular expression rules. Uses Dice's Coefficient (aka Pair Similiarity) and Levenshtein Distance internally.

upsert

Upsert on MySQL, PostgreSQL, and SQLite3. Transparently creates functions (UDF) for MySQL and PostgreSQL; on SQLite3, uses INSERT OR IGNORE.

data_miner

Download, unpack from a ZIP/TAR/GZ/BZ2 archive, parse, correct, convert units and import Google Spreadsheets, XLS, ODS, XML, CSV, HTML, etc. into your ActiveRecord models. Uses RemoteTable gem internally.

remote_table

Open local or remote XLSX, XLS, ODS, CSV (comma separated), TSV (tab separated), other delimited, fixed-width files, and Google Docs. Returns an enumerator of Arrays or Hashes, depending on whether there are headers.

unix_utils

Like FileUtils, but provides zip, unzip, bzip2, bunzip2, tar, untar, sed, du, md5sum, shasum, cut, head, tail, wc, unix2dos, dos2unix, iconv, curl, perl, etc.

cache_method

Cache based on arguments AND object state; store in memcached, redis, or in-process. Like alias_method, but it's cache_method! One step beyond memoization.

lock_and_cache

Most caching libraries don't do locking, meaning that >1 process can be calculating a cached value at the same time. Since you presumably cache things because they cost CPU, database reads, or money, doesn't it make sense to lock while caching?

mysql2xxxx

Gives you binaries like mysql2csv, mysql2json, and mysql2xml, and Ruby classes to match.

cache

Defines a simple interface to multiple cache-like storage engines by wrapping common Ruby client libraries like memcached, redis, memcache-client, dalli. Handles each underlying library's weirdnesses, including forking.

eat

A (better?) replacement for open-uri. Lets you open local and remote files by immediately returning their contents as a string.

to_regexp

Provides String#to_regexp

errata

Define an errata in table format (CSV) and then apply it to an arbitrary source. Inspired by RFC Errata, lets you keep your own errata in a transparent way.

cacheable

DEPRECATED. Use cache_method instead.

py-upsert

Python library to make it easy to upsert on MySQL, PostgreSQL, and SQLite3.

report

DSL for creating clean CSV, XLSX, and PDF reports in Ruby. Uses xlsx_writer, prawn and pdftk internally.

database_url

Convert back and forth between Heroku-style ENV['DATABASE_URL'] and Rails/ActiveRecord-style config/database.yml hashes.

lock_method

Like alias_method, but it's lock_method! (lockfiles)

common_name

Helps you stop using chains of humanize/downcase/underscore/pluralize/to_sym/etc everywhere in your models, your views, your controllers, etc.

engineyard-metadata

Presents a simple, unchanging interface to get metadata about your EngineYard AppCloud instances running on Amazon EC2.

cohort_analysis

create_table

Analyze and inspect CREATE TABLE SQL statements and translate across databases. Uses Ragel internally for parsing.

ruby_ragel_examples

Examples of using ragel and ruby together

fuzzy_infer

Fuzzy set analysis - predicts one or more unknown characteristics of an input case by comparing its known characteristics to a reference dataset whose records contain both the known and unknown characteristics.

the_geom_geojson

For PostGIS/PostgreSQL and ActiveRecord, provides "the_geom_geojson" getter and setter that update "the_geom" and "the_geom_webmercator" columns.

validates_decency_of

Rails plugin that uses George Carlin's list of seven dirty words (aka swear words, aka cuss words, aka bad words) to check for "decency" on ActiveRecord model attributes.

weighted_average

Aircraft.average(:seats) versus Aircraft.weighted_average(:seats, :weighted_by => :takeoffs)

loose_tight_dictionary

DEPRECATED: use fuzzy_match. Find a needle in a haystack using string similarity and (optionally) regexp rules.

hash_digest

Generates non-cryptographic digests of Hashes (and Arrays) indifferent to key type (string or symbol) and ordering.

redirect_routing

pg_trgm

Ruby trigram similarity that is identical to Postgres's (almost)

ey_cloud_awareness

DEPRECATED: use engineyard-metadata. Make your EngineYard cloud instances aware of each other.

xml_split

Split XML files on an element, yielding (streaming, so constant memory usage) each node in turn. Uses sgrep2 internally; future versions should use a pure-Ruby SAX parser.

characterizable

DEPRECATED. Use charisma instead.

has_handle_fallback

Make it easy to use handles (callsigns/monikers/usernames) in URLs, even if they might be blank.

table_warnings

Warn yourself of problems with your ActiveRecord tables.

to_json_fix

TODO: one-line summary of your gem

honeypot

TODO: one-line summary of your gem

vector_embed

Vector embedding of strings, booleans, numerics, and arrays into LIBSVM / LIBLINEAR format.

switches

Turn on and off parts of your code based on yaml files.

flights1percent

zip5

Convert United States zip codes to their correct Zip5 representation, even if they're missing a leading zero and/or they have the +4 suffix.

zmq

Drop-in replacement for zmq gem with included binaries

cvg

Like jq or grep for csv. Combine one or more CSVs while filtering on fields with regular expressions, whitelists, presence, missing, etc.

json_to_csv_to_json

csv_to_json and json_to_csv

has_timestamps

Rails plugin to add named timestamps to ActiveRecord models.

string_enumerator

Given a string containing placeholders (like [color]), enumerate all of the possible strings resulting from filling those placeholders with replacements (like red, blue).

nonrandomapp

mini_record

mini_record-compat is DEPRECATED. Use original mini_record OR active_record_inline_schema instead.

string_replacer

DEPRECATED/POINTLESS - use sed or augeas. Replace text in a file without disturbing the rest of the file.

geocode_records

As long as you do very specific things... quickly re-geocode tables.

force_schema

[DEPRECATED - use mini_record] Declare a table structure like an ActiveRecord migration and run 'force_schema!' whenever you want. For when you don't need up and down migrations.

fast_timestamp

Rapidly and arbitrarily timestamp ActiveRecord records.