Class: SeedDump::Perform

Inherits:
Object show all
Defined in:
lib/seed_dump/perform.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Perform

Returns a new instance of Perform.



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# File 'lib/seed_dump/perform.rb', line 7

def initialize
  @opts = {}
  @ar_options = {} 
  @indent = ""
  @models = []
  @last_record = []
  @seed_rb = "" 
  @id_set_string = ""
  @model_dir = 'app/models/**/*.rb'
end

Instance Method Details

#attribute_for_inspect(r, k) ⇒ Object

override the rails version of this function to NOT truncate strings



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# File 'lib/seed_dump/perform.rb', line 153

def attribute_for_inspect(r,k)
  value = r.attributes[k]
  
  if value.is_a?(String) && value.length > 50
    "#{value}".inspect
  elsif value.is_a?(Date) || value.is_a?(Time)
    %("#{value.to_s(:db)}")
  else
    value.inspect
  end
end

#dumpAttribute(a_s, r, k, v) ⇒ Object 



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# File 'lib/seed_dump/perform.rb', line 72

def dumpAttribute(a_s,r,k,v)
  if v.is_a?(BigDecimal)
    v = v.to_s
  else
    v = attribute_for_inspect(r,k)
  end 

  unless k == 'id' && !@opts['with_id']
    if (!(k == 'created_at' || k == 'updated_at') || @opts['timestamps'])
      a_s.push("#{k.to_sym.inspect} => #{v}")
    end
  end 
end

#dumpModel(model) ⇒ Object 



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# File 'lib/seed_dump/perform.rb', line 86

def dumpModel(model)
  @id_set_string = ''
  @last_record = []
  create_hash = ""
  options = ''
  rows = []
  arr = []
  arr = model.find(:all, @ar_options) unless @opts['no-data']
  arr = arr.empty? ? [model.new] : arr 

  arr.each_with_index { |r,i| 
    attr_s = [];
    r.attributes.each do |k,v|
      if ((model.attr_accessible[:default].include? k) || @opts['without_protection'] || @opts['with_id'])
        dumpAttribute(attr_s,r,k,v)
        @last_record.push k 
      end
    end
    rows.push "#{@indent}{ " << attr_s.join(', ') << " }"
  } 

  if @opts['without_protection']
    options = ', :without_protection => true '
  end
  
  if @opts['max']
    splited_rows = rows.each_slice(@opts['max']).to_a
    maxsarr = []
    splited_rows.each do |sr|
      maxsarr << "\n#{model}.create([\n" << sr.join(",\n") << "\n]#{options})\n"
    end 
    maxsarr.join('')
  else
    "\n#{model}.create([\n" << rows.join(",\n") << "\n]#{options})\n"
  end
  
end

#dumpModels ⇒ Object 



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# File 'lib/seed_dump/perform.rb', line 124

def dumpModels
  @seed_rb = ""
  @models.sort.each do |model|
      m = model.constantize
      if m.ancestors.include?(ActiveRecord::Base) && !m.abstract_class
        puts "Adding #{model} seeds." if @opts['verbose']

        if @opts['skip_callbacks']
          @seed_rb << "#{model}.reset_callbacks :save\n"
          @seed_rb << "#{model}.reset_callbacks :create\n"
          puts "Callbacks are disabled." if @opts['verbose']
        end

        @seed_rb << dumpModel(m) << "\n\n"
      else
        puts "Skipping non-ActiveRecord model #{model}..." if @opts['verbose']
      end
  end
end

#last_record ⇒ Object 



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# File 'lib/seed_dump/perform.rb', line 68

def last_record
  @last_record
end

#loadModels ⇒ Object 



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# File 'lib/seed_dump/perform.rb', line 38

def loadModels
  puts "Searching in #{@opts['model_dir']} for models" if @opts['debug']
  Dir[Dir.pwd + '/' + @opts['model_dir']].sort.each do |f|
    puts "Processing file #{f}" if @opts['debug']
    # parse file name and path leading up to file name and assume the path is a module
    f =~ /models\/(.*).rb/
    # split path by /, camelize the constituents, and then reform as a formal class name
    parts = $1.split("/").map {|x| x.camelize}

    # Initialize nested model namespaces
    parts.clip.inject(Object) do |x, y|
      if x.const_defined?(y)
        x.const_get(y)
      else
        x.const_set(y, Module.new)
      end
    end

    model = parts.join("::")
    require f

    puts "Detected model #{model}" if @opts['debug']
    @models.push model if @opts['models'].include?(model) || @opts['models'].empty? 
  end
end

#models ⇒ Object 



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# File 'lib/seed_dump/perform.rb', line 64

def models
  @models
end

#run(env) ⇒ Object 



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# File 'lib/seed_dump/perform.rb', line 170

def run(env)

  setup env

  puts "Protection is disabled." if @opts['verbose'] && @opts['without_protection']

  setSearchPath @opts['schema'] if @opts['schema']

  loadModels

  puts "Appending seeds to #{@opts['file']}." if @opts['append']
  dumpModels

  puts "Writing #{@opts['file']}."
  writeFile

  puts "Done."
end

#setSearchPath(path, append_public = true) ⇒ Object 



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# File 'lib/seed_dump/perform.rb', line 165

def setSearchPath(path, append_public=true)
    path_parts = [path.to_s, ('public' if append_public)].compact
    ActiveRecord::Base.connection.schema_search_path = path_parts.join(',')
end

#setup(env) ⇒ Object 



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# File 'lib/seed_dump/perform.rb', line 18

def setup(env)
  # config
  @opts['verbose'] = env["VERBOSE"].true? || env['VERBOSE'].nil?
  @opts['debug'] = env["DEBUG"].true?
  @opts['with_id'] = env["WITH_ID"].true?
  @opts['timestamps'] = env["TIMESTAMPS"].true? || env["TIMESTAMPS"].nil?
  @opts['no-data'] = env['NO_DATA'].true?
  @opts['without_protection'] = env['WITHOUT_PROTECTION'].true? || (env['WITHOUT_PROTECTION'].nil? && @opts['timestamps'])
  @opts['skip_callbacks'] = env['SKIP_CALLBACKS'].true?
  @opts['models']  = env['MODELS'] || (env['MODEL'] ? env['MODEL'] : "")
  @opts['file']    = env['FILE'] || "#{Rails.root}/db/seeds.rb"
  @opts['append']  = (env['APPEND'].true? && File.exists?(@opts['file']) )
  @opts['max']     = env['MAX'] && env['MAX'].to_i > 0 ? env['MAX'].to_i : nil
  @ar_options      = env['LIMIT'].to_i > 0 ? { :limit => env['LIMIT'].to_i } : {}
  @indent          = " " * (env['INDENT'].nil? ? 2 : env['INDENT'].to_i)
  @opts['models']  = @opts['models'].split(',').collect {|x| x.underscore.singularize.camelize }
  @opts['schema']  = env['PG_SCHEMA']
  @opts['model_dir']  = env['MODEL_DIR'] || @model_dir
end

#writeFile ⇒ Object 



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# File 'lib/seed_dump/perform.rb', line 144

def writeFile
  File.open(@opts['file'], (@opts['append'] ? "a" : "w")) { |f|
    f << "# encoding: utf-8\n"
    f << "# Autogenerated by the db:seed:dump task\n# Do not hesitate to tweak this to your needs\n" unless @opts['append']
    f << "#{@seed_rb}"
  }
end