Class: Nexter::Wrap

Inherits:
Object
  • Object
show all
Defined in:
lib/nexter/wrap.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(relation, model) ⇒ Wrap

Returns a new instance of Wrap.



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# File 'lib/nexter/wrap.rb', line 14

def initialize(relation, model)
  @relation = relation
  @model = model
  @order_values = parse_order( relation.order_values )
  @associations = relation.includes_values
  # @cursor_column = extract_attr( @ranges.pop )
  # @cursor = model.send( @cursor_column.to_sym, )
end

Instance Attribute Details

#associations ⇒ Object (readonly)

extracted values from the relation



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# File 'lib/nexter/wrap.rb', line 8

def associations
  @associations
end

#model ⇒ Object (readonly)

the current model & the scope



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# File 'lib/nexter/wrap.rb', line 5

def model
  @model
end

#order_values ⇒ Object (readonly)

extracted values from the relation



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# File 'lib/nexter/wrap.rb', line 8

def order_values
  @order_values
end

#relation ⇒ Object (readonly)

the current model & the scope



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# File 'lib/nexter/wrap.rb', line 5

def relation
  @relation
end

#reorders ⇒ Object (readonly)

list of build strings for finale SQL



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# File 'lib/nexter/wrap.rb', line 11

def reorders
  @reorders
end

#wheres ⇒ Object (readonly)

list of build strings for finale SQL



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# File 'lib/nexter/wrap.rb', line 11

def wheres
  @wheres
end

Instance Method Details

#after ⇒ Object 



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# File 'lib/nexter/wrap.rb', line 33

def after
  derange = cut(:next)
  r = relation.where( wheres.join(' OR ') )
  # r = r.order(:id) if derange.reorder
  r
end

#before ⇒ Object 



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# File 'lib/nexter/wrap.rb', line 40

def before
  cut(:previous)
  relation.where( wheres.join(' OR ') ).reorder( reorders.join(", ") )
end

#next ⇒ Object

TODO : let user determine which strategy to choose: e.g: carousel or stay there



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# File 'lib/nexter/wrap.rb', line 25

def next
  after.first
end

#previous ⇒ Object 



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# File 'lib/nexter/wrap.rb', line 29

def previous
  before.first
end