class ObjectPatch::Operations::Move
A representation of a JSON pointer move operation.
Public Class Methods
Setup the replace operation with any required arguments.
@param [Hash] patch_data Parameters necessary to build the operation. @option patch_data [String] path The location in the target document to
place moved data.
@option patch_data [String] from The location that will be moved to a new
path.
@return [void]
# File lib/object_patch/operations/move.rb, line 35 def initialize(patch_data) @from = patch_data.fetch('from') @path = patch_data.fetch('path') end
Public Instance Methods
Apply this operation to the provided document and return the updated document. Please note that the changes will be reflected not only in the returned value but the original document that was passed in as well.
@param [Object] target_doc The document that will be modified by this
patch.
@return [Object] The modified document
# File lib/object_patch/operations/move.rb, line 14 def apply(target_doc) src_key = processed_from.last dst_key = processed_path.last src_obj = ObjectPatch::Pointer.eval(processed_from[0...-1], target_doc) dst_obj = ObjectPatch::Pointer.eval(processed_path[0...-1], target_doc) moved_value = ObjectPatch::Operations.rm_op(src_obj, src_key) ObjectPatch::Operations.add_op(dst_obj, dst_key, moved_value) target_doc end
Returns the from field after being expanded by the JSON pointer semantics.
@return [Array<String>] Expanded pointer path
# File lib/object_patch/operations/move.rb, line 43 def processed_from ObjectPatch::Pointer.parse(@from) end
Returns the path after being expanded by the JSON pointer semantics.
@return [Array<String>] Expanded pointer path
# File lib/object_patch/operations/move.rb, line 50 def processed_path ObjectPatch::Pointer.parse(@path) end
Covert this operation to a format that can be built into a full on JSON patch.
@return [Hash<String => String>] JSON patch move operation
# File lib/object_patch/operations/move.rb, line 58 def to_patch { 'op' => 'move', 'from' => @from, 'path' => @path } end