Class: OrientSupport::MatchStatement

Inherits:
Object
  • Object
show all
Includes:
Support
Defined in:
lib/support/orientquery.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Support

#compose_where, #generate_sql_list

Constructor Details

#initialize(match_class = nil, **args) ⇒ MatchStatement

Returns a new instance of MatchStatement.



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# File 'lib/support/orientquery.rb', line 102

def initialize match_class=nil, **args
  @misc  = []
  @where = []
  @while = []
  @maxdepth = 0
  @as =  nil


  @match_class = match_class
  @as = match_class.pluralize if match_class.is_a? String

  args.each do |k, v|
    case k
  when :as
    @as = v
    when :while
      @while << v
    when :where
      @where << v
  when :class
    @match_class = v
    @as = v.pluralize
    else
      self.send k, v
    end
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *arg, &b) ⇒ Object 



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# File 'lib/support/orientquery.rb', line 145

def method_missing method, *arg, &b
  @misc << method.to_s <<  generate_sql_list(arg) 
end

Instance Attribute Details

#as ⇒ Object

Returns the value of attribute as.



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# File 'lib/support/orientquery.rb', line 100

def as
  @as
end

#where ⇒ Object

Returns the value of attribute where.



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# File 'lib/support/orientquery.rb', line 101

def where
  @where
end

Instance Method Details

#compose ⇒ Object Also known as: to_s 



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# File 'lib/support/orientquery.rb', line 159

def compose

    '{'+ [ "class: #{@match_class}", 
    "as: #{@as}" , 
    where_s, 
   while_s, 
   @maxdepth >0 ? "maxdepth: #{maxdepth}": nil  ].compact.join(', ')+'}'
end

#compose_simple ⇒ Object

used for the first compose-statement of a compose-query



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# File 'lib/support/orientquery.rb', line 153

def compose_simple
   '{'+ [ "class: #{@match_class}", 
    "as: #{@as}" , 
    where_s ].compact.join(', ') + '}'
end

#match_alias ⇒ Object 



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# File 'lib/support/orientquery.rb', line 134

def match_alias
  "as: #{@as }"
end

#maxdepth=(x) ⇒ Object 



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# File 'lib/support/orientquery.rb', line 141

def maxdepth=x
  @maxdepth = x
end

#misc ⇒ Object 



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# File 'lib/support/orientquery.rb', line 149

def misc
  @misc.join(' ') unless @misc.empty?
end

#where_s ⇒ Object 



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# File 'lib/support/orientquery.rb', line 137

def where_s
 compose_where( @where ).gsub( /where/, 'where:(' )<< ")"  unless @where.blank?
end

#while_s ⇒ Object 



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# File 'lib/support/orientquery.rb', line 130

def while_s
 compose_where( @while ).gsub( /where/, 'while:(' )<< ")" unless @while.blank?
end