Class: Dotdot::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/dotdot/base.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(object) ⇒ Base

Returns a new instance of Base.



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# File 'lib/dotdot/base.rb', line 5

def initialize(object)
  @database = nil
  @object   = object
  @options  = object.options
  @logger   = Logger.new(STDOUT)
  @sql_options = { :logger => @logger, :sql_log_level => :info }

  if @options[:verbose]
    @sql_options[:sql_log_level] = :debug
  end
end

Instance Attribute Details

#database ⇒ Object (readonly)

Returns the value of attribute database.



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# File 'lib/dotdot/base.rb', line 3

def database
  @database
end

Instance Method Details

#get(key, group = nil) ⇒ Object 



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# File 'lib/dotdot/base.rb', line 63

def get(key, group = nil)
  group ||= @object.group.to_s

  val = @dataset.where(:key => key, :group => group)

  if val.empty?
    val = @dataset.where(:key => key, :group => "globals")
  end

  if val.count > 0
    val.first[:value]
  else
    raise "key \'#{key}\' cannot be found!"
  end
end

#get_children(key, group = nil) ⇒ Object 



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# File 'lib/dotdot/base.rb', line 85

def get_children(key, group = nil)
  group ||= @object.group.to_s
  values = []

  res = @dataset.where(:key.like("#{key}%"), :group => group)

  if res.empty?
    res = @dataset.where(:key.like("#{key}%"), :group => "globals")
  end

  key = key.split('.')

  res.each do |r|
    res_key = r[:key].split('.')
    res_key = (res_key - key).shift
    values.push(res_key)
  end

  if values.count > 0
    values & values
  else
    raise "no values for \'#{key}\'!"
  end
end

#get_if_key_exists(key, group = nil) ⇒ Object 



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# File 'lib/dotdot/base.rb', line 79

def get_if_key_exists(key, group = nil)
  group ||= @object.group.to_s

  get(key, group) if has_key?(key, group)
end

#globals(&block) ⇒ Object 



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# File 'lib/dotdot/base.rb', line 34

def globals(&block)
  @group = "globals"

  @database.transaction do
    yield
  end
end

#group(group = nil, &block) ⇒ Object 



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# File 'lib/dotdot/base.rb', line 26

def group(group = nil, &block)
  @group = group

  @database.transaction do
    yield
  end
end

#has_key?(key, group) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dotdot/base.rb', line 49

def has_key?(key, group)
  group ||= @object.group.to_s

  val = @dataset.where(:key => key, :group => group).count

  if val == 0
    val = @dataset.where(:key => key, :group => "globals").count

    val == 0 ? false : true
  else
    true
  end
end

#prefix(prefix, &block) ⇒ Object 



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# File 'lib/dotdot/base.rb', line 42

def prefix(prefix, &block)
  @prefix_stack.push(prefix)
  yield

  stack_pop
end

#set(key, value, group = nil) ⇒ Object 



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# File 'lib/dotdot/base.rb', line 110

def set(key, value, group = nil)
  group ||= @group
  key = final_key(key)

  @dataset.insert(:key => key, :value => value, :group => group)

  stack_pop
end

#update(key, value, group = nil) ⇒ Object 



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# File 'lib/dotdot/base.rb', line 17

def update(key, value, group = nil)
  group ||= @group
  key = final_key(key)

  @dataset.filter(:key => key, :group => group).update(:value => value)

  stack_pop
end