Janko Marohnić janko

## application_controller.rb
class ApplicationController < ActionController::Base
  private

  def stream_body(async: false, **options, &block)
    self.status ||= 200

    self.headers["Cache-Control"] = "no-cache"
    self.headers.delete("Content-Length")

    stream_class = async ? AsyncStream : Stream

## results
width, imagemagick, libvips
1000,  0.129,       0.045
1500,  0.190,       0.067
2000,  0.276,       0.054
2500,  0.380,       0.068
3000,  0.498,       0.085

## 01-safe-download.rb
require "open-uri"
require "net/http"

Error = Class.new(StandardError)

DOWNLOAD_ERRORS = [
  SocketError,
  OpenURI::HTTPError,
  RuntimeError,
  URI::InvalidURIError,

## 01-presentation.md

      
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              7 stars
            
          
                janko
                / 01-presentation.md
            
            
              Last active Jun 6, 2019
            
              
                PostgreSQL full-text search capabilites (my presentation from our local Ruby meetup)
              
          
      View 01-presentation.md
  
    
    Full-text search


Keywords


Typos


Stemming


Stopword ignore


## script.rb
Value = Struct.new(:value) do
  def coerce(other)
    puts "called #{self}#coerce(#{other.inspect})"
    [Value.new(other), self]
  end

  def +(other)
    puts "called #{self} + #{other.inspect}"
  end

## 1-activerecord.rb
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}"] }

## Gemfile
source "https://rubygems.org"

gem "roda"
gem "http", "~> 3.3"
gem "rest-client"
gem "httparty"

## derivate_endpoint.md

      
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                janko
                / derivate_endpoint.md
            
            
              Last active Nov 18, 2018
            
              
                Plans for the new derivate_endpoint Shrine plugin
              
          
      View derivate_endpoint.md
  
    
    Derivate Endpoint
Derivate blocks are executed in context of the uploader instance:
class ImageUploader < Shrine
  plugin :derivate_endpoint

  derivate :thumbnail do |file, context|

  
## arel.rb
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)

## script.rb
require "sequel"
require "shrine"
require "shrine/storage/memory"
require "zip"
require "tempfile"
require "securerandom"

DB = Sequel.sqlite
DB.create_table :archives do
  primary_key :id