77 lines
2.4 KiB
Ruby
77 lines
2.4 KiB
Ruby
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class IncomingLinkNormalization < ActiveRecord::Migration
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def up
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remove_column :incoming_links, :post_number
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remove_column :incoming_links, :domain
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add_column :incoming_links, :incoming_referer_id, :integer
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create_table :incoming_referers do |t|
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t.string :url, limit: 1000, null: false
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t.string :domain, limit: 100, null: false
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t.string :path, limit: 1000, null: false
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t.integer :port, null: false
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t.boolean :https, null: false
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t.integer :incoming_domain_id
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end
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# start the shuffle
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#
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execute "INSERT INTO incoming_referers(url, https, domain, port, path)
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SELECT referer,
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CASE WHEN a[1] = 's' THEN true ELSE false END,
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a[2] as domain,
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CASE WHEN a[1] = 's' THEN
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COALESCE(a[4]::integer, 443)::integer
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ELSE
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COALESCE(a[4]::integer, 80)::integer
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END,
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COALESCE(a[5], '') path
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FROM
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(
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SELECT referer, regexp_matches(referer, 'http(s)?://([^/:]+)(:(\d+))?(.*)') a
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FROM
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(
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SELECT DISTINCT referer
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FROM incoming_links WHERE referer ~ '^https?://.+'
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) Z
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) X
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WHERE a[2] IS NOT NULL"
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execute "UPDATE incoming_links l
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SET incoming_referer_id = r.id
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FROM incoming_referers r
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WHERE r.url = l.referer"
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create_table :incoming_domains do |t|
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t.string :name, limit: 100, null: false
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t.boolean :https, null: false, default: false
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t.integer :port, null: false
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end
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# shuffle part 2
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#
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execute "INSERT INTO incoming_domains(name, port, https)
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SELECT DISTINCT domain, port, https
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FROM incoming_referers"
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execute "UPDATE incoming_referers l
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SET incoming_domain_id = d.id
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FROM incoming_domains d
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WHERE d.name = l.domain AND d.https = l.https AND d.port = l.port"
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remove_column :incoming_referers, :domain
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remove_column :incoming_referers, :port
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remove_column :incoming_referers, :https
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change_column :incoming_referers, :incoming_domain_id, :integer, null: false
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add_index :incoming_referers, [:path, :incoming_domain_id], unique: true
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add_index :incoming_domains, [:name, :https, :port], unique: true
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remove_column :incoming_links, :referer
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end
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def down
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raise ActiveRecord::IrreversibleMigration
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end
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end
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