Class: Methodist::Builder

Inherits:
Pattern
  • Object
show all
Defined in:
lib/methodist/builder.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Pattern

#methodistic?

Class Method Details

.attr_accessor(*args) ⇒ Object 



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# File 'lib/methodist/builder.rb', line 5

def attr_accessor(*args)
  @attributes ||= []
  @attributes += args
  @attributes.uniq!
  super(*args)
end

.attributes ⇒ Object Also known as: attrs

Array of defined attributes



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# File 'lib/methodist/builder.rb', line 41

def attributes
  @attributes || []
end

.field(attr_name, proc = nil) ⇒ Object

Define attribute and set validation for value

Parameters

  • attr_name [String] - name of defined attribute

  • proc [Proc] - proc for validate contains value. If proc call result

will returns true then #valid_attr? will returns true.



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# File 'lib/methodist/builder.rb', line 21

def field(attr_name, proc = nil)
  attr_accessor(attr_name)
  set_proc_to_const(proc, attr_name) if proc
end

.fields(*attr_names, &block) ⇒ Object

Define multiple attributes and set validation for values

Parameters

  • attr_names [Args] - name of defined attribute

  • proc [Proc] - proc for validate contains values.



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# File 'lib/methodist/builder.rb', line 34

def fields(*attr_names, &block)
  attr_names.each { |attr_name| field(attr_name, &block) }
end

.proc_const_name(attr_name) ⇒ Object 



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# File 'lib/methodist/builder.rb', line 51

def proc_const_name(attr_name)
  "VALIDATION_PROC_#{attr_name.upcase}"
end

.set_proc_to_const(proc, attr_name) ⇒ Object 



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# File 'lib/methodist/builder.rb', line 47

def set_proc_to_const(proc, attr_name)
  const_set(proc_const_name(attr_name), proc)
end

Instance Method Details

#to_h ⇒ Object Also known as: to_hash

Convert attributes and values to hash.

Example

In builder with attributes 'title', 'author'
when you will use this method you will have:
{ title: 'Title', author: 'Author' }



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# File 'lib/methodist/builder.rb', line 64

def to_h
  hash = {}
  self.class.attributes.each do |att|
    hash[att] = self.send(att)
  end
  hash
end

#valid? ⇒ Boolean

Validate all attributes.

Returns:

  • (Boolean) 


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# File 'lib/methodist/builder.rb', line 77

def valid?
  self.class.attributes.all? { |att| valid_attr?(att) }
end

#valid_attr?(attr_name) ⇒ Boolean

Validate attribute value. Proc passed in #field method use for validation. If proc was not defined just return true.

Parameters

  • attr_name [String/Symbol] - name of attribute

Returns:

  • (Boolean) 


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# File 'lib/methodist/builder.rb', line 89

def valid_attr?(attr_name)
  proc = get_proc(attr_name)
  return true if proc.nil?
  proc.call(self.send(attr_name))
end