130 lines
4.5 KiB
Ruby
130 lines
4.5 KiB
Ruby
module ActiveRecord
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module ConnectionAdapters
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module SchemaStatements
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def quote_column_names(column_name)
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Array(column_name).map { |e| quote_column_name(e) }.join(", ")
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end
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def add_primary_key(table_name, column_name, options = {})
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column_names = Array(column_name)
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quoted_column_names = column_names.map { |e| quote_column_name(e) }.join(", ")
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execute "ALTER TABLE #{table_name} ADD PRIMARY KEY (#{quoted_column_names})"
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end
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def remove_primary_key(table_name)
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execute "ALTER TABLE #{table_name} DROP PRIMARY KEY"
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end
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def add_foreign_key(table_name, column_name, reftbl, refcol = nil)
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execute "ALTER TABLE #{table_name} ADD " +
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"FOREIGN KEY (#{quote_column_names(column_name)}) " +
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"REFERENCES #{reftbl} (#{quote_column_names(refcol || column_name)})"
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end
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def remove_foreign_key(table_name, column_name, reftbl, refcol = nil)
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execute "ALTER TABLE #{table_name} DROP " +
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"CONSTRAINT #{table_name}_#{column_name[0]}_fkey"
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end
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alias_method :old_options_include_default?, :options_include_default?
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def options_include_default?(options)
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return false if options[:options] =~ /AUTO_INCREMENT/i
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return old_options_include_default?(options)
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end
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alias_method :old_add_column_options!, :add_column_options!
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def add_column_options!(sql, options)
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sql << " UNSIGNED" if options[:unsigned]
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old_add_column_options!(sql, options)
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sql << " #{options[:options]}"
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end
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end
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class PostgreSQLAdapter
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alias_method :old_native_database_types, :native_database_types
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def native_database_types
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types = old_native_database_types
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types[:double] = { :name => "double precision" }
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types[:integer_pk] = { :name => "serial PRIMARY KEY" }
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types[:bigint_pk] = { :name => "bigserial PRIMARY KEY" }
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types[:bigint_pk_64] = { :name => "bigserial PRIMARY KEY" }
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types[:bigint_auto_64] = { :name => "bigint" } #fixme: need autoincrement?
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types[:bigint_auto_11] = { :name => "bigint" } #fixme: need autoincrement?
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types[:bigint_auto_20] = { :name => "bigint" } #fixme: need autoincrement?
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types[:four_byte_unsigned] = { :name => "bigint" } # meh
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types[:inet] = { :name=> "inet" }
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enumerations.each_key do |e|
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types[e.to_sym]= { :name => e }
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end
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types
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end
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def myisam_table
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return { :id => false, :force => true, :options => ""}
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end
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def innodb_table
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return { :id => false, :force => true, :options => ""}
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end
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def innodb_option
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return ""
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end
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def change_engine (table_name, engine)
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end
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def add_fulltext_index (table_name, column)
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execute "CREATE INDEX #{table_name}_#{column}_idx on #{table_name} (#{column})"
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end
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def enumerations
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@enumerations ||= Hash.new
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end
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def create_enumeration (enumeration_name, values)
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enumerations[enumeration_name] = values
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execute "create type #{enumeration_name} as enum ('#{values.join '\',\''}')"
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end
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def drop_enumeration (enumeration_name)
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execute "drop type #{enumeration_name}"
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enumerations.delete(enumeration_name)
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end
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def alter_primary_key(table_name, new_columns)
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execute "alter table #{table_name} drop constraint #{table_name}_pkey; alter table #{table_name} add primary key (#{new_columns.join(',')})"
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end
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def interval_constant(interval)
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"'#{interval}'::interval"
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end
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def add_index(table_name, column_name, options = {})
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column_names = Array(column_name)
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index_name = index_name(table_name, :column => column_names)
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if Hash === options # legacy support, since this param was a string
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index_type = options[:unique] ? "UNIQUE" : ""
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index_name = options[:name] || index_name
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index_method = options[:method] || "BTREE"
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else
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index_type = options
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end
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quoted_column_names = column_names.map { |e| quote_column_name(e) }
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if Hash === options and options[:lowercase]
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quoted_column_names = quoted_column_names.map { |e| "LOWER(#{e})" }
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end
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quoted_column_names = quoted_column_names.join(", ")
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execute "CREATE #{index_type} INDEX #{quote_column_name(index_name)} ON #{quote_table_name(table_name)} USING #{index_method} (#{quoted_column_names})"
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end
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end
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end
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end
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