Class: InOrder::Update

Inherits:
Object
  • Object
show all
Includes:
Aux::SortElements, Aux::VarKeys
Defined in:
app/models/in_order/update.rb

Overview

Adds new elements to an existing list, returning the whole new list. Effectively, it calls Create, Fetch Uniq and Trim.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Aux::SortElements

sort_elements

Methods included from Aux::VarKeys

included, #initialize

Instance Attribute Details

#append ⇒ Object Also known as: append?

Returns the value of attribute append.



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# File 'app/models/in_order/update.rb', line 10

def append
  @append
end

#max ⇒ Object

Returns the value of attribute max.



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# File 'app/models/in_order/update.rb', line 10

def max
  @max
end

#uniq ⇒ Object Also known as: uniq?

Returns the value of attribute uniq.



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# File 'app/models/in_order/update.rb', line 10

def uniq
  @uniq
end

Instance Method Details

#call(models, **options) ⇒ Object Also known as: elements 



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# File 'app/models/in_order/update.rb', line 22

def call(models, **options)
  set_options(**options)

  previous_elements = get_elements

  if uniq? and previous_elements.any?
    if purge_previous(previous_elements, models)
      previous_elements = get_elements
    end
  end

  new_elements = Create.new(keys).(models, append: append?)

  if previous_elements.any?
    new_elements = add_to_list(previous_elements, new_elements)
  end

  trim(new_elements)
end

#set_options(append: true, uniq: true, max: nil) ⇒ Object 



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# File 'app/models/in_order/update.rb', line 14

def set_options(append: true, uniq: true, max: nil)
  self.append = append

  self.max = max&.to_i

  self.uniq = uniq
end

#subjects(*args) ⇒ Object Also known as: records 



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# File 'app/models/in_order/update.rb', line 43

def subjects(*args)
  call(*args).map &:subject
end