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exAspArk/diff_mongoid_indexes.rb

Last active October 4, 2019 21:47
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diff_mongoid_indexes.rb
defined_indexes = Model.index_specifications.map { |s| s.fields.map(&:to_s) };
existing_indexes = Model.collection.indexes.map { |i| i['key'].keys };
missing_indexes = defined_indexes - existing_indexes
# => []
extra_indexes = existing_indexes - defined_indexes - [['_id']]
# => []
#################################################################################
# if the arrays are correct (hopefully the indexes have {background: true} flag),
# then you're good to run
Model.create_indexes # or Model.remove_indexes
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