Class: RailsAdminSettings::Namespaced

Inherits:
BasicObject
Defined in:
lib/rails_admin_settings/namespaced.rb

Overview

we are inheriting from BasicObject so we don’t get a bunch of methods from Kernel or Object

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name) ⇒ Namespaced 



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# File 'lib/rails_admin_settings/namespaced.rb', line 8

def initialize(name)
  self.settings = {}
  @mutex = ::Mutex.new
  @ns_mutex = ::Mutex.new
  @loaded = false
  @locked = false
  @name = name
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(key, *args) ⇒ Object

returns processed setting value



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# File 'lib/rails_admin_settings/namespaced.rb', line 144

def method_missing(key, *args)
  key = key.to_s
  if key.end_with?('_enabled?')
    key = key[0..-10]
    v = get(key)
    if v.nil?
      set(key, '').enabled
    else
      v.enabled
    end
  elsif key.end_with?('_enabled=')
    key = key[0..-10]
    v = get(key)
    if ::RailsAdminSettings.mongoid?
      if ::Mongoid::VERSION >= "4.0.0"
        v.set(enabled: args.first)
      else
        v.set("enabled", args.first)
      end
    else
      v.enabled = args.first
      v.save!
    end
    v.enabled
  elsif key.end_with?('=')
    key = key[0..-2]
    options = args[1] || {}
    value = args.first
    set(key, value, options).val
  else
    v = get(key, args.first || {})
    if v.nil?
      ''
    else
      v.val
    end
  end
end

Instance Attribute Details

#fallback ⇒ Object

Returns the value of attribute fallback.



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# File 'lib/rails_admin_settings/namespaced.rb', line 5

def fallback
  @fallback
end

#loaded ⇒ Object (readonly)

Returns the value of attribute loaded.



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# File 'lib/rails_admin_settings/namespaced.rb', line 6

def loaded
  @loaded
end

#mutex ⇒ Object (readonly)

Returns the value of attribute mutex.



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# File 'lib/rails_admin_settings/namespaced.rb', line 6

def mutex
  @mutex
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/rails_admin_settings/namespaced.rb', line 6

def name
  @name
end

#ns_mutex ⇒ Object (readonly)

Returns the value of attribute ns_mutex.



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# File 'lib/rails_admin_settings/namespaced.rb', line 6

def ns_mutex
  @ns_mutex
end

#settings ⇒ Object

Returns the value of attribute settings.



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# File 'lib/rails_admin_settings/namespaced.rb', line 5

def settings
  @settings
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 122

def [](key)
  get(key)
end

#[]=(key, value) ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 119

def []=(key, value)
  set(key, value)
end

#destroy!(key) ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 126

def destroy!(key)
  load!
  key = key.to_s
  mutex.synchronize do
    ::RailsAdminSettings::Setting.where(ns: @name, key: key).destroy_all
    @settings.delete(key)
  end
end

#destroy_all! ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 135

def destroy_all!
  mutex.synchronize do
    ::RailsAdminSettings::Setting.where(ns: @name).destroy_all
    @loaded = false
    @settings = {}
  end
end

#enabled?(key, options = {}) ⇒ Boolean 



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# File 'lib/rails_admin_settings/namespaced.rb', line 115

def enabled?(key, options = {})
  get(key, options).enabled?
end

#get(key, options = {}) ⇒ Object

returns setting object



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# File 'lib/rails_admin_settings/namespaced.rb', line 46

def get(key, options = {})
  load!
  key = key.to_s
  mutex.synchronize do
    @locked = true
    v = @settings[key]
    if v.nil?
      unless @fallback.nil? || @fallback == @name
        v = ::Settings.ns(@fallback).getnc(key)
      end
      if v.nil?
        v = set(key, options[:default], options)
      end
    end
    @locked = false
    v
  end
end

#getnc(key) ⇒ Object

returns setting object



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# File 'lib/rails_admin_settings/namespaced.rb', line 66

def getnc(key)
  load!
  mutex.synchronize do
    self.settings[key]
  end
end

#inspect ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 20

def inspect
  "#<RailsAdminSettings::Namespaced name: #{@name.inspect}, fallback: #{@fallback.inspect}, loaded: #{@loaded}>".freeze
end

#load! ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 27

def load!
  mutex.synchronize do
    return if loaded
    @loaded = true
    @settings = {}
    ::RailsAdminSettings::Setting.ns(@name).each do |setting|
      @settings[setting.key] = setting
    end
  end
end

#nil? ⇒ Boolean 



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# File 'lib/rails_admin_settings/namespaced.rb', line 17

def nil?
  false
end

#pretty_inspect ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 23

def pretty_inspect
  inspect
end

#set(key, value = nil, options = {}) ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 73

def set(key, value = nil, options = {})
  load! unless @locked
  key = key.to_s
  options.symbolize_keys!
  if options.key?(:cache)
    _cache = options.delete(:cache)
  else
    _cache = (name != ::Settings.ns_default)
  end

  if !options[:type].nil? && options[:type] == 'yaml' && !value.nil?
    if value.class.name != 'String'
      value = value.to_yaml
    end
  end

  options[:cache_keys] ||= options.delete :cache_key

  if options[:cache_keys].nil?
    if _cache
      options[:cache_keys_str] = name.underscore
    end
  else
    if options[:cache_keys].class.name == 'String'
      options[:cache_keys_str] = options.delete(:cache_keys)
    elsif options[:cache_keys].class.name == 'Array'
      options[:cache_keys_str] = options.delete(:cache_keys).map { |k| k.to_s }.join(" ")
    else
      options[:cache_keys_str] = options.delete(:cache_keys).to_s
    end
  end

  options.merge!(value: value)
  if @locked
    write_to_database(key, options)
  else
    mutex.synchronize do
      write_to_database(key, options)
    end
  end
end

#unload! ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 38

def unload!
  mutex.synchronize do
    @loaded = false
    @settings = {}
  end
end

#write_to_database(key, options) ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 183

def write_to_database(key, options)
  is_file = !options[:kind].nil? && (options[:kind] == 'image' || options[:kind] == 'file')
  if is_file
    options[:raw] = ''
    file = options[:value]
  else
    options[:raw] = options[:value]
  end

  options.delete(:value)
  options.delete(:default)
  options[:ns] = @name

  if @settings[key].nil?
    options.delete(:overwrite)
    v = ::RailsAdminSettings::Setting.create(options.merge(key: key))
    if !v.persisted?
      if v.errors[:key].any?
        v = ::RailsAdminSettings::Setting.where(key: key).first
        if v.nil?
          ::Kernel.raise ::RailsAdminSettings::PersistenceException, 'Fatal: error in key and not in DB'
        end
      else
        ::Kernel.raise ::RailsAdminSettings::PersistenceException, v.errors.full_messages.join(',')
      end
    end
    @settings[key] = v
  else
    opts = options.dup
    if options[:overwrite] == false && !@settings[key].value.blank?
      opts.delete(:raw)
      opts.delete(:value)
      opts.delete(:enabled)
    end
    opts.delete(:overwrite)
    @settings[key].update_attributes!(opts)
  end
  if is_file
    if options[:overwrite] != false || !@settings[key].file?
      @settings[key].file = file
      @settings[key].save!
    end
  end
  @settings[key]
end