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35 lines
1.2 KiB
35 lines
1.2 KiB
class DeleteIvalidData < ActiveRecord::Migration[5.2]
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def change
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users = User.find_by_sql("select count(*) as user_count, login from users group by login having user_count>1")
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users.each do |user|
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valid_users = User.where(login: user.login)
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valid_users.each do |valid_user|
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unless valid_user.lastname.present?
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valid_user.delete
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end
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end
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end
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mail_users = User.find_by_sql("select count(*) as user_count, mail from users where mail is not null group by mail having user_count>1")
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mail_users.each do |mail_user|
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valid_mail_users = User.where(mail: mail_user.mail)
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valid_mail_users.each do |valid_mail_user|
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unless valid_mail_user.lastname.present?
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valid_mail_user.delete
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end
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end
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end
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phone_users = User.find_by_sql("select count(*) as user_count, phone from users where phone is not null group by phone having user_count>1")
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phone_users.each do |phone_user|
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valid_phone_users = User.where(phone: phone_user.phone)
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valid_phone_users.each do |valid_phone_user|
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unless valid_phone_user.lastname.present?
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valid_phone_user.delete
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end
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end
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end
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end
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end
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