Module: Filewriter

Defined in:
lib/active_recorder/filewriter.rb

Overview

A Filereader module which create a controller and view for ActiveRecord tables

Class Method Summary collapse

Class Method Details

.create_tables_dir(path) ⇒ Object

Creates a directory with the given path



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# File 'lib/active_recorder/filewriter.rb', line 120

def self.create_tables_dir(path)
  dir = File.join(path, 'app/views/tables')
  FileUtils.remove_dir(dir) if File.directory?(dir)
  Dir.mkdir dir
end

.pluralize(name) ⇒ Object

Appends ‘s’ to a records name



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# File 'lib/active_recorder/filewriter.rb', line 113

def self.pluralize(name)
  pluralized = "#{name}s"
  pluralized = "#{name}es" if name.end_with?('s')
  pluralized
end

.to_all(name) ⇒ Object

Appends ‘.all’ to a records name



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# File 'lib/active_recorder/filewriter.rb', line 108

def self.to_all(name)
  "#{name}.all"
end

.to_instance_variable(name) ⇒ Object

Prepends ‘@’ and appends ‘s’ to a lower case variable name



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# File 'lib/active_recorder/filewriter.rb', line 101

def self.to_instance_variable(name)
  instance_name = "@#{name.downcase}s"
  instance_name = "@#{name.downcase}es" if name.end_with?('s')
  instance_name
end

.write_controller(path, records) ⇒ Object

Creates controller in the directory given



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# File 'lib/active_recorder/filewriter.rb', line 5

def self.write_controller(path, records)
  # Get the absolute path to write the controller
  dir = File.join(path, 'app/controllers/tables_controller.rb')
  open(dir, 'w') do |f|
    # Prints class declaration
    f.puts 'class TablesController < ApplicationController'
    # Prints comment
    f.puts '  # GET /tables'
    # Prints route function
    f.puts '  def index'
    # Prints out entities instance variable and function call
    records.each do |record|
      f.puts "    #{Filewriter.to_instance_variable(record.name)} = #{Filewriter.to_all(record.name)}"
    end
    f.puts '  end'
    f.puts 'end'
  end
end

.write_routes(path) ⇒ Object

Writes the tables routes to the routes.rb file



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# File 'lib/active_recorder/filewriter.rb', line 74

def self.write_routes(path)
  # Get input and output directory of files
  input = "#{File.join(path, 'config')}/routes.rb"
  output = "#{File.join(path, 'config')}/tmp.rb"
  # Check whether line already exists
  exist = false
  # Open the file to read from
  open(input, 'r') do |input_file|
    open(output, 'w') do |output_file|
      # Read each line of input
      input_file.each_line do |line|
        if line.start_with? "  get 'tables' => 'tables#index'"
          exist = true
        elsif line.start_with? 'end'
          output_file.puts("  get 'tables' => 'tables#index'")
          output_file.puts('end')
        else
          output_file.write(line)
        end
      end
    end
  end
  # Overwrite input with output
  FileUtils.mv(output, input) unless exist
end

.write_view(path, records) ⇒ Object

Creates a tables view in the directory given



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# File 'lib/active_recorder/filewriter.rb', line 25

def self.write_view(path, records)
  # Get the absolute path to write the view
  dir = File.join(path, 'app/views/tables/index.html.erb')
  open(dir, 'w') do |f|
    # Print headers
    f.puts '<!DOCTYPE HTML>'
    f.puts '<html lang="en">'
    f.puts '  <head>'
    f.puts '    <title>ActiveRecord Tables</title>'
    f.puts '    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">'
    f.puts '  </head>'
    f.puts '  <body>'
    f.puts '    <h1 align="center">ActiveRecord Tables</h1>'
    # Print record tables
    records.each do |record|
      f.puts '    <div class="container col-md-offset-2 col-md-8">'
      f.puts "      <h3 align='center' style='margin-top:30px'>#{Filewriter.pluralize(record.name)} Table</h3>"
      f.puts '      <table class="table table-bordered">'
      f.puts '        <thead>'
      f.puts '          <tr class="info">'
      f.puts '            <th>ID</th>'
      record.columns.each do |col, _val|
        f.puts "            <th>#{col.capitalize}</th>"
      end
      f.puts '          </tr>'
      f.puts '        </thead>'
      f.puts '        <tbody>'
      f.puts "          <% #{Filewriter.to_instance_variable(record.name)}.each do |#{record.name.downcase}| %>"
      f.puts '            <tr>'
      f.puts "              <td><%= #{record.name.downcase}.id %></td>"
      record.columns.each do |col, val|
        if val == 'references'
          f.puts "              <td><%= #{record.name.downcase}.#{col}.id %></td>"
        else
          f.puts "              <td><%= #{record.name.downcase}.#{col} %></td>"
        end
      end
      f.puts '            </tr>'
      f.puts '          <% end %>'
      f.puts '        </tbody>'
      f.puts '      </table>'
      f.puts '    </div>'
    end
    f.puts '  </body>'
    f.puts '</html>'
  end
end