- You MUST NOT try and generate a Rails app from scratch on your own by generating each file. For a NEW app you MUST use
rails new
first to generate all of the boilerplate files necessary. - Create an app in the current directory with
rails new .
- Use Tailwind CSS for styling. Use
--css tailwind
as an option on therails new
call to do this automatically. - Use Ruby 3.2+ and Rails 8.0+ practices.
- Use the default Minitest approach for testing, do not use RSpec.
- Default to using SQLite in development.
rails new
will do this automatically but take care if you write any custom SQL that it is SQLite compatible. - An app can be built with a devcontainer such as
rails new myapp --devcontainer
but only do this if requested directly. - Rails apps have a lot of directories to consider, such as app, config, db, etc.
- Adhere to MVC conventions: singular model names (e.g., Product) map to plural tables (products); controllers are plural.
- Guard against incapable browsers accessing controllers with `allo
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// https://www.mql5.com/pt/articles/751 | |
#define ERROR -1; | |
//+------------------------------------------------------------------+ | |
//| Checking if a given filling mode is allowed | | |
//+------------------------------------------------------------------+ | |
bool IsFillingTypeAllowed(string symbol, int fill_type) | |
{ |
The best way to safely and securely use local domains pointing to 127.0.0.1 is to edit your local settings (/etc/hosts) and add your own settings. Keep in mind if you want to use subdomains, you need to enter all variations.
Example:
# Adding bottom of your current file /etc/hosts
################# MY LOCAL DOMAINS
127.0.0.1 local.com admin.local.com
127.0.0.1 domain1.com
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begin | |
require "bundler/inline" | |
rescue LoadError => e | |
$stderr.puts "Bundler version 1.10 or later is required. Please update your Bundler" | |
raise e | |
end | |
gemfile(true) do | |
source "https://rubygems.org" |
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begin | |
require "bundler/inline" | |
rescue LoadError => e | |
$stderr.puts "Bundler version 1.10 or later is required. Please update your Bundler" | |
raise e | |
end | |
gemfile(true) do | |
source "https://rubygems.org" |
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class DecoratorClone | |
def initialize(model) | |
@model = model | |
end | |
def method_missing(m, *args) | |
raise NameError, "Decorator method '#{m}' not found" unless @model.respond_to?(m) | |
@model.send(m, *args) | |
end | |
end |
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require "csv" | |
require "date" | |
puts CSV::HeaderConverters.keys.inspect # => [:downcase, :symbol] | |
# Add new header converter | |
CSV::HeaderConverters[:remap] = lambda do |raw_value| | |
raw_value = raw_value.to_sym | |
case raw_value | |
when :country |
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# 1) Create your private key (any password will do, we remove it below) | |
$ cd ~/.ssh | |
$ openssl genrsa -des3 -out server.orig.key 2048 | |
# 2) Remove the password | |
$ openssl rsa -in server.orig.key -out server.key |
This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.
The script is here:
#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"
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