11 lines
474 B
Ruby
11 lines
474 B
Ruby
class RemoveDuplicateAspectVisibilities < ActiveRecord::Migration[4.2]
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def up
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where = "WHERE a1.aspect_id = a2.aspect_id AND a1.shareable_id = a2.shareable_id AND "\
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"a1.shareable_type = a2.shareable_type AND a1.id > a2.id"
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if AppConfig.postgres?
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execute("DELETE FROM aspect_visibilities AS a1 USING aspect_visibilities AS a2 #{where}")
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else
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execute("DELETE a1 FROM aspect_visibilities a1, aspect_visibilities a2 #{where}")
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end
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end
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end
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