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

Constant Summary collapse

DELEGATE = 
[:puts, :p, :block_given?].freeze

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 11

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, &block) ⇒ Object

returns processed setting value



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# File 'lib/rails_admin_settings/namespaced.rb', line 201

def method_missing(key, *args, &block)
  return ::Kernel.send(key, *args, &block) if DELEGATE.include?(key)
  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 || {}, &block)
    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 8

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 9

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 9

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 9

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 9

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 8

def settings
  @settings
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 179

def [](key)
  get(key)
end

#[]=(key, value) ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 176

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

#destroy!(key) ⇒ Object 



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

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 192

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 172

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

#get(key, options = {}, &block) ⇒ Object

returns setting object



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# File 'lib/rails_admin_settings/namespaced.rb', line 49

def get(key, options = {}, &block)
  options[:loadable] = true unless options[:loadable] == false
  load! if options[:loadable]
  key = key.to_s
  mutex.synchronize do
    @locked = true
    _loadable = options[:loadable]
    unless _loadable
      v = ::RailsAdminSettings::Setting.ns(name).where(key: key).first
      if v
        unless options[:cache_keys_str].present?
          _cache_keys = options.delete(:cache_keys)
          _cache_keys ||= options.delete(:cache_key)

          if _cache_keys.nil?
            options[:cache_keys_str] = ""
            # if _cache
            #   options[:cache_keys_str] = name.underscore
            # end
          else
            if _cache_keys.is_a?(::Array)
              options[:cache_keys_str] = _cache_keys.map { |k| k.to_s.strip }.join(" ")
            else
              options[:cache_keys_str] = _cache_keys.to_s.strip
            end
          end
        end
        options.delete(:cache_keys)
        options.delete(:cache_key)

        _old_cache_keys = options[:cache_keys_str].strip.split(" ")
        # options[:cache_keys_str] = ("#{v.cache_keys_str} #{(options[:cache_keys_str] || "")}".strip.split(" ")).uniq
        # options[:cache_keys_str] = ("#{v.cache_keys_str.join(" ")} #{(options[:cache_keys_str] || "")}".strip.split(" ")).uniq
        options[:cache_keys_str] = (_old_cache_keys + v.cache_keys).uniq
        options[:overwrite] = true unless (options[:cache_keys_str] - _old_cache_keys).blank?
        options[:cache_keys_str] = options[:cache_keys_str].map { |k| k.to_s.strip }.join(" ")
      end
    else
      v = @settings[key]
    end
    _overwrite = options[:overwrite]
    if v.nil? or _overwrite
      if v.nil?
        unless @fallback.nil? || @fallback == @name
          v = ::Settings.ns(@fallback).getnc(key)
        end
      end
      if v.nil? or _overwrite
        if block
          begin
            v = set(key, yield, options)
          rescue Exception => ex
            # puts "WTF"
            # puts ex.inspect
          end
        else
          v = set(key, options[:default], options)
        end
      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 115

def getnc(key)
  load!
  ret = mutex.synchronize do
    self.settings[key]
  end
  unless ret
    ret = ::RailsAdminSettings::Setting.ns(name).where(key: key).first
  end
  ret
end

#inspect ⇒ Object 



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

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 30

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

#nil? ⇒ Boolean 



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

def nil?
  false
end

#pretty_inspect ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 26

def pretty_inspect
  inspect
end

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



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

def set(key, value = nil, options = {})
  load! unless @locked if options[:loadable]
  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

  unless options[:cache_keys_str].present?
    _cache_keys = options.delete(:cache_keys)
    _cache_keys ||= options.delete(:cache_key)

    if _cache_keys.nil?
      # if _cache
      #   options[:cache_keys_str] = name.underscore
      # end
    else
      if _cache_keys.is_a?(::Array)
        options[:cache_keys_str] = _cache_keys.map { |k| k.to_s.strip }.join(" ")
      else
        options[:cache_keys_str] = _cache_keys.to_s.strip
      end
    end
  end
  options.delete(:cache_keys)
  options.delete(:cache_key)

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

#unload! ⇒ Object 



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# File 'lib/rails_admin_settings/namespaced.rb', line 41

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 241

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] if options[:value]
  end

  options.delete(:value)
  options.delete(:default)
  options[:ns] = @name
  if @settings[key].nil?
    if options.delete(:overwrite)
      v = ::RailsAdminSettings::Setting.ns(options[:ns]).where(key: key).first
      if v
        opts = options.dup
        v.update_attributes!(opts)
      end
    end
    if v.nil?
      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
    end
    if options[:loadable]
      @settings[key] = v
    else
      return v
    end
  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 and options[:loadable] and @settings[key]
    if options[:overwrite] != false || !@settings[key].file?
      @settings[key].file = file
      @settings[key].save!
    end
  end
  @settings[key]
end