Class: Partitioned::ByIntegerField

Inherits:
PartitionedBase show all
Defined in:
lib/partitioned/by_integer_field.rb

Overview

Partitioned abstract class for all partitioned models based as a single integer field value.

Direct Known Subclasses

ByForeignKey, ById

Class Method Summary collapse

Methods inherited from PartitionedBase

add_parent_table_rules, add_partition_table_index, add_references_to_partition_table, archive_old_partition, archive_old_partitions, arel_table_from_key_values, configurator, configurator_dsl, create_infrastructure, create_new_partition, create_new_partition_tables, create_new_partitions, create_partition_schema, create_partition_table, delete_infrastructure, drop_old_partition, drop_old_partitions, drop_partition_table, dynamic_arel_table, #dynamic_arel_table, from_partition, from_partition_without_alias, partition_key_values, partition_keys, partition_manager, partition_name, partition_table_alias_name, #partition_table_name, partition_table_name, partitioned, sql_adapter

Methods included from ActiveRecordOverrides

#arel_attributes_values, #delete

Class Method Details

.partition_generate_range(start_value, end_value, step = :default) ⇒ Object 



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# File 'lib/partitioned/by_integer_field.rb', line 26

def self.partition_generate_range(start_value, end_value, step = :default)
  step = partition_table_size if step == :default
  return Range.new(start_value, end_value).step(step)
end

.partition_integer_field ⇒ String

the name of the partition key field

Returns:

  • (String) —

    the name of the field

Raises:



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# File 'lib/partitioned/by_integer_field.rb', line 16

def self.partition_integer_field
  raise MethodNotImplemented.new(self, :partition_integer_field)
end

.partition_normalize_key_value(integer_field_value) ⇒ Integer

the normalized key value for a given key value

Returns:

  • (Integer) —

    the normalized value



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# File 'lib/partitioned/by_integer_field.rb', line 22

def self.partition_normalize_key_value(integer_field_value)
  return integer_field_value / partition_table_size * partition_table_size
end

.partition_table_size ⇒ Integer

the size of each table

Returns:

  • (Integer) —

    how many different values are in each partition



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# File 'lib/partitioned/by_integer_field.rb', line 10

def self.partition_table_size
  return 1
end