Class: Palmade::Cableguy::TemplateBinding

Inherits:
Object
  • Object
show all
Defined in:
lib/palmade/cableguy/templatebinding.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cable, cabler, cabling, target) ⇒ TemplateBinding

Returns a new instance of TemplateBinding.



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# File 'lib/palmade/cableguy/templatebinding.rb', line 13

def initialize(cable, cabler, cabling, target)
  @cable = cable
  @cabler = cabler
  @cabling = cabling
  @target = target
  @location = @cabler.location
  @arg_hash = @cable.args[2]
  @db = @cabler.db
  @key_prefix = []
  @reserved_keys = ['target', 'location']
end

Instance Attribute Details

#arg_hash ⇒ Object (readonly)

Returns the value of attribute arg_hash.



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# File 'lib/palmade/cableguy/templatebinding.rb', line 6

def arg_hash
  @arg_hash
end

#cable ⇒ Object (readonly)

Returns the value of attribute cable.



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# File 'lib/palmade/cableguy/templatebinding.rb', line 3

def cable
  @cable
end

#cabler ⇒ Object (readonly)

Returns the value of attribute cabler.



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# File 'lib/palmade/cableguy/templatebinding.rb', line 4

def cabler
  @cabler
end

#cabling ⇒ Object (readonly)

Returns the value of attribute cabling.



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# File 'lib/palmade/cableguy/templatebinding.rb', line 5

def cabling
  @cabling
end

#db ⇒ Object (readonly)

Returns the value of attribute db.



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# File 'lib/palmade/cableguy/templatebinding.rb', line 9

def db
  @db
end

#location ⇒ Object (readonly)

Returns the value of attribute location.



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# File 'lib/palmade/cableguy/templatebinding.rb', line 8

def location
  @location
end

#output_buffer ⇒ Object

Returns the value of attribute output_buffer.



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# File 'lib/palmade/cableguy/templatebinding.rb', line 11

def output_buffer
  @output_buffer
end

#reserved_keys ⇒ Object (readonly)

Returns the value of attribute reserved_keys.



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# File 'lib/palmade/cableguy/templatebinding.rb', line 10

def reserved_keys
  @reserved_keys
end

#target ⇒ Object (readonly)

Returns the value of attribute target.



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# File 'lib/palmade/cableguy/templatebinding.rb', line 7

def target
  @target
end

Instance Method Details

#fill_key_prefix(key) ⇒ Object 



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# File 'lib/palmade/cableguy/templatebinding.rb', line 80

def fill_key_prefix(key)
  key.split('.').each do |k|
    @key_prefix << k
  end
end

#get(key, group = nil) ⇒ Object 



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# File 'lib/palmade/cableguy/templatebinding.rb', line 45

def get(key, group = nil)
  if !@key_prefix.empty?
    key = join_keys(key)
  end

  @db.get(key, group)
end

#get_children(key, group = nil, &block) ⇒ Object 



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# File 'lib/palmade/cableguy/templatebinding.rb', line 53

def get_children(key, group = nil, &block)
  if block_given?
    fill_key_prefix(key)

    yield @db.get_children(key, group)
    @key_prefix.clear
  else
    @db.get_children(key, group)
  end
end

#get_each_child(key, group = nil, &block) ⇒ Object 



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# File 'lib/palmade/cableguy/templatebinding.rb', line 64

def get_each_child(key, group = nil, &block)
  if block_given?
    fill_key_prefix(key)

    children = @db.get_children(key, group)

    children.each do |c|
      yield c
    end

    @key_prefix.clear
  else
    @db.get_children(key, group)
  end
end

#get_if_key_exists(key, group = nil) ⇒ Object 



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# File 'lib/palmade/cableguy/templatebinding.rb', line 37

def get_if_key_exists(key, group = nil)
  if !@key_prefix.empty?
    key = join_keys(key)
  end

  @db.get_if_key_exists(key, group)
end

#has_key?(key, group = nil) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/palmade/cableguy/templatebinding.rb', line 29

def has_key?(key, group = nil)
  if !@key_prefix.empty?
    key = join_keys(key)
  end

  @db.has_key?(key, group)
end

#install(source_file, target_file) ⇒ Object 



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# File 'lib/palmade/cableguy/templatebinding.rb', line 109

def install(source_file, target_file)
  parsed = parse(source_file)

  File.open(target_file, 'w') do |f|
    f.write(parsed)
  end
  target_file
end

#join_keys(key) ⇒ Object 



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# File 'lib/palmade/cableguy/templatebinding.rb', line 25

def join_keys(key)
  "#{@key_prefix.join('.')}.#{key}"
end

#parse(file_path) ⇒ Object 



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# File 'lib/palmade/cableguy/templatebinding.rb', line 86

def parse(file_path)
  Palmade::Cableguy.require_erb
  fcontents = File.read(file_path)

  parsed = ERB.new(fcontents, nil, "-%>", "@output_buffer").result(binding)
  parsed = special_parse(parsed, [ '{', '}' ], false)
end

#special_parse(parsed, delim = [ '{', '}' ], cabling_only = false) ⇒ Object 



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# File 'lib/palmade/cableguy/templatebinding.rb', line 94

def special_parse(parsed, delim = [ '{', '}' ], cabling_only = false)
  delim0 = "\\#{delim[0]}"
  delim1 = "\\#{delim[1]}"

  parsed = parsed.gsub(/#{delim0}(.+)#{delim1}/) do |match|
    found = $1

    if @reserved_keys.include?(found)
      eval_ret = self.send(found)
    else
      eval_ret = get(found)
    end
  end
end