Class: Praxis::Extensions::AttributeFiltering::FilterTreeNode

Inherits:
Object
  • Object
show all
Defined in:
lib/praxis/extensions/attribute_filtering/filter_tree_node.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parsed_filters, path: []) ⇒ FilterTreeNode

Parsed_filters is an Array of X, op: Y, value: Z … exactly the format of the FilteringParams.load method



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# File 'lib/praxis/extensions/attribute_filtering/filter_tree_node.rb', line 10

def initialize(parsed_filters, path: [])
  @path = path # Array that marks the tree 'path' to this node (with respect to the absolute root)
  @conditions = [] # Conditions to apply directly to this node
  @children = {} # Hash with a new NodeTree object value, keyed by name
  children_data = {} # Hash with keys as names of the first level component of the children nodes (and values as array of matching filters)
  parsed_filters.map do |hash|
    *components = hash[:name].to_s.split('.')
    next if components.empty?

    if components.size == 1
      @conditions << hash.slice(:name, :op, :value, :fuzzy, :node_object)
    else
      children_data[components.first] ||= []
      children_data[components.first] << hash
    end
  end
  # An array of FilterTreeNodes corresponding to each children
  @children = children_data.each_with_object({}) do |(name, arr), hash|
    sub_filters = arr.map do |item|
      _parent, *rest = item[:name].to_s.split('.')
      item.merge(name: rest.join('.'))
    end
    hash[name] = self.class.new(sub_filters, path: path + [name])
  end
end

Instance Attribute Details

#children ⇒ Object (readonly)

Returns the value of attribute children.



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# File 'lib/praxis/extensions/attribute_filtering/filter_tree_node.rb', line 7

def children
  @children
end

#conditions ⇒ Object (readonly)

Returns the value of attribute conditions.



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# File 'lib/praxis/extensions/attribute_filtering/filter_tree_node.rb', line 7

def conditions
  @conditions
end

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/praxis/extensions/attribute_filtering/filter_tree_node.rb', line 7

def path
  @path
end