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Janko Marohnić janko

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@janko
janko / presentation.rb
Created May 27, 2015 23:05
Advanced Regex features in Ruby (my presentation from our local Ruby meetups)
############
# GROUPING #
############
def Given(*) end
Given(/There (is|are) some links?/) { } # ERROR
Given(/There (?:is|are) some links?/) { }
@janko
janko / 01.md
Created May 27, 2015 23:07
The Roda Ruby framework (my presentation on our local Ruby meetups)

Roda

  • Web framework (on top of Rack)

  • Forked from Cuba

  • Core + Plugins

    • Core: 440 LOC
  • Total: 3200 LOC
@janko
janko / 01-requirements.md
Last active March 6, 2023 11:15
ActiveRecord vs Sequel (require time) 
$ brew install cloc
$ bundle install
@janko
janko / arel.rb
Created July 28, 2015 00:09
Insert statement in Arel
require "active_record"
ActiveRecord::Base.establish_connection("postgres:///db")
insert = Arel::Nodes::InsertStatement.new
insert.relation = Arel::Table.new(:movies)
insert.columns = hash.keys.map { |k| Arel::Table.new(:movies)[k] }
insert.values = Arel::Nodes::Values.new(hash.values, insert.columns)
ActiveRecord::Base.connection.execute(insert.to_sql)
@janko
janko / 01-safe-download.rb
Last active January 9, 2023 11:40
A safe way in Ruby to download a file to disk using open-uri (with/without comments)
require "open-uri"
require "net/http"
Error = Class.new(StandardError)
DOWNLOAD_ERRORS = [
SocketError,
OpenURI::HTTPError,
RuntimeError,
URI::InvalidURIError,
@janko
janko / 1-activerecord.rb
Last active June 13, 2023 20:00
INSERTing 50,000 records into a database in ActiveRecord, Arel, SQL, activerecord-import and Sequel.
require "active_record"
ActiveRecord::Base.establish_connection(adapter: "sqlite3", database: ":memory:")
ActiveRecord::Migration.class_eval do
create_table(:records) do |t|
t.string :column
end
end
data = 50_000.times.map { |i| Hash[column: "Column #{i}"] }
@janko
janko / sequel.rb
Last active February 28, 2018 12:50
Sequel response to https://gist.github.com/hadees/cff6af2b53d340b9b4b2
require "sequel"
DB = Sequel.postgres("arel")
DB.create_table!(:movies) { primary_key :id }
class Movie < Sequel::Model
end
# Asterisk (I agree this one isn't ideal)
Movie.select{count{}.*} # SELECT count(*) FROM "movies"
@janko
janko / activerecord.md
Last active May 7, 2016 11:33
Response to http://bikeshed.fm/56 regarding "ActiveRecord is Reinventing Sequel"

Hey Sean,

I just encountered your "The Bike Shed" podcast, concretely number #56 where you were talking about the "ActiveRecord is Reinventing Sequel" post I wrote. I'm sorry that this post struck you as negative, and that it made you feel like I was attacking you. I admit that I did feel some negative energy while I was writing it, but I still felt like I needed to say it.

Firstly, you said in the podcast that you would like to read an article which shows parts where Sequel is better than ActiveRecord. However, I did link my previous "Ode to Sequel" post in the first paragraph of my post, and soon after added two more. So I think it's a bit unfair that I was pr

@janko
janko / 0-gemfile.rb
Created July 31, 2016 11:24
Using Shrine with ROM and dry-rb
source "https://rubygems.org"
gem "shrine", github: "janko-m/shrine"
gem "rom-repository"
gem "rom-sql"
gem "sqlite3"
gem "dry-validation"
gem "roda"
gem "sucker_punch", "~> 2.0"
@janko
janko / concatenation.rb
Last active September 8, 2016 03:14
Concatenation plugin for Shrine
class Shrine
module Plugins
# The `concatenation` plugin allows you to assign to the attacher a
# cached file which is composed of multiple uploaded parts. The plugin
# will then call `#concat` on the storage, which is expected to
# concatenate the given parts into a single file. The assigned
# attachment will then be a complete cached file.
#
# plugin :concatenation
#