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Add tree_view method #561

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merged 2 commits into from
Jan 5, 2022
Merged

Add tree_view method #561

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46957a5
Add tree_view method
Bizcho Nov 23, 2021
8d7dbdf
remove unneeded comments
kbrock Jan 5, 2022
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14 changes: 14 additions & 0 deletions lib/ancestry/class_methods.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,20 @@ def arrange_serializable options={}, nodes=nil, &block
end
end

def tree_view(column, data = nil)
data = arrange unless data
data.each do |parent, children|
if parent.depth == 0
puts parent[column]
else
num = parent.depth - 1
indent = " "*num
puts " #{"|" if parent.depth > 1}#{indent}|_ #{parent[column]}"
end
tree_view(column, children) if children
end
end

# Pseudo-preordered array of nodes. Children will always follow parents,
def sort_by_ancestry(nodes, &block)
arranged = nodes if nodes.is_a?(Hash)
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