Class: Philiprehberger::Differ::Changeset

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/philiprehberger/differ/changeset.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(changes = []) ⇒ Changeset

Returns a new instance of Changeset.



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# File 'lib/philiprehberger/differ/changeset.rb', line 10

def initialize(changes = [])
  @changes = changes
end

Instance Attribute Details

#changes ⇒ Object (readonly)

Returns the value of attribute changes.



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# File 'lib/philiprehberger/differ/changeset.rb', line 8

def changes
  @changes
end

Instance Method Details

#added ⇒ Object 



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# File 'lib/philiprehberger/differ/changeset.rb', line 56

def added
  @changes.select { |c| c.type == :added }
end

#apply(hash) ⇒ Object 



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# File 'lib/philiprehberger/differ/changeset.rb', line 68

def apply(hash)
  result = deep_dup(hash)
  sorted = sort_for_apply(@changes)
  sorted.each { |c| apply_change(result, c) }
  result
end

#changed ⇒ Object 



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# File 'lib/philiprehberger/differ/changeset.rb', line 64

def changed
  @changes.select { |c| c.type == :changed }
end

#changed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/philiprehberger/differ/changeset.rb', line 52

def changed?
  !@changes.empty?
end

#count ⇒ Integer

Number of changes.

Returns:

  • (Integer) 


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# File 'lib/philiprehberger/differ/changeset.rb', line 25

def count
  @changes.length
end

#each {|Change| ... } ⇒ Enumerator

Iterate over each Change.

Yields:

Returns:

  • (Enumerator) —

    if no block given



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# File 'lib/philiprehberger/differ/changeset.rb', line 18

def each(&)
  @changes.each(&)
end

#include?(path) ⇒ Boolean

Check if a specific path was changed.

Parameters:

  • path (String, Symbol) —

    the path to check

Returns:

  • (Boolean) 


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# File 'lib/philiprehberger/differ/changeset.rb', line 40

def include?(path)
  path_s = path.to_s
  @changes.any? { |c| c.path.to_s == path_s }
end

#paths ⇒ Array<String>

Array of all changed paths.

Returns:

  • (Array<String>) 


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# File 'lib/philiprehberger/differ/changeset.rb', line 32

def paths
  @changes.map(&:path)
end

#removed ⇒ Object 



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# File 'lib/philiprehberger/differ/changeset.rb', line 60

def removed
  @changes.select { |c| c.type == :removed }
end

#revert(hash) ⇒ Object 



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# File 'lib/philiprehberger/differ/changeset.rb', line 75

def revert(hash)
  result = deep_dup(hash)
  sorted = sort_for_revert(@changes)
  sorted.each { |c| revert_change(result, c) }
  result
end

#summary ⇒ Hash{Symbol => Integer}

Summary counts by change type.

Returns:

  • (Hash{Symbol => Integer}) —

    { added:, removed:, changed: }



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# File 'lib/philiprehberger/differ/changeset.rb', line 48

def summary
  { added: added.length, removed: removed.length, changed: changed.length }
end

#to_h ⇒ Object 



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# File 'lib/philiprehberger/differ/changeset.rb', line 82

def to_h
  { changes: @changes.map(&:to_h) }
end

#to_json_patch ⇒ Object 



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# File 'lib/philiprehberger/differ/changeset.rb', line 90

def to_json_patch
  Formatters::JsonPatch.format(self)
end

#to_text ⇒ Object 



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# File 'lib/philiprehberger/differ/changeset.rb', line 86

def to_text
  Formatters::Text.format(self)
end