Class: PgParty::ModelDecorator
- Inherits:
-
SimpleDelegator
- Object
- SimpleDelegator
- PgParty::ModelDecorator
- Defined in:
- lib/pg_party/model_decorator.rb
Instance Method Summary collapse
- #create_default_partition(**options) ⇒ Object
- #create_hash_partition(modulus:, remainder:, **options) ⇒ Object
- #create_list_partition(values:, **options) ⇒ Object
- #create_range_partition(start_range:, end_range:, **options) ⇒ Object
- #in_partition(child_table_name) ⇒ Object
- #list_partition_key_in(*values) ⇒ Object (also: #hash_partition_key_in)
- #partition_key_eq(value) ⇒ Object
- #partitions(include_subpartitions: PgParty.config.include_subpartitions_in_partition_list) ⇒ Object
- #range_partition_key_in(start_range, end_range) ⇒ Object
Instance Method Details
#create_default_partition(**options) ⇒ Object
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# File 'lib/pg_party/model_decorator.rb', line 102 def create_default_partition(**) = .merge( primary_key: primary_key, ) create_partition(:create_default_partition_of, table_name, **) end |
#create_hash_partition(modulus:, remainder:, **options) ⇒ Object
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# File 'lib/pg_party/model_decorator.rb', line 92 def create_hash_partition(modulus:, remainder:, **) = .merge( modulus: modulus, remainder: remainder, primary_key: primary_key, ) create_partition(:create_hash_partition_of, table_name, **) end |
#create_list_partition(values:, **options) ⇒ Object
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# File 'lib/pg_party/model_decorator.rb', line 83 def create_list_partition(values:, **) = .merge( values: values, primary_key: primary_key, ) create_partition(:create_list_partition_of, table_name, **) end |
#create_range_partition(start_range:, end_range:, **options) ⇒ Object
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# File 'lib/pg_party/model_decorator.rb', line 73 def create_range_partition(start_range:, end_range:, **) = .merge( start_range: start_range, end_range: end_range, primary_key: primary_key, ) create_partition(:create_range_partition_of, table_name, **) end |
#in_partition(child_table_name) ⇒ Object
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# File 'lib/pg_party/model_decorator.rb', line 5 def in_partition(child_table_name) PgParty.cache.fetch_model(cache_key, child_table_name) do Class.new(__getobj__) do self.table_name = child_table_name # to avoid argument errors when calling model_name def self.name superclass.name end # when returning records from a query, Rails # allocates objects first, then initializes def self.allocate superclass.allocate end # creating and persisting new records from a child partition # will ultimately insert into the parent partition table def self.new(*args, &blk) superclass.new(*args, &blk) end # to avoid unnecessary db lookups def self.partitions [] end end end end |
#list_partition_key_in(*values) ⇒ Object Also known as: hash_partition_key_in
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# File 'lib/pg_party/model_decorator.rb', line 55 def list_partition_key_in(*values) if complex_partition_key complex_partition_key_query("(#{partition_key}) IN (?)", values.flatten) else where(current_arel_table[partition_key].in(values.flatten)) end end |
#partition_key_eq(value) ⇒ Object
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# File 'lib/pg_party/model_decorator.rb', line 35 def partition_key_eq(value) if complex_partition_key complex_partition_key_query("(#{partition_key}) = (?)", value) else where(partition_key_arel(:eq, value)) end end |
#partitions(include_subpartitions: PgParty.config.include_subpartitions_in_partition_list) ⇒ Object
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# File 'lib/pg_party/model_decorator.rb', line 65 def partitions(include_subpartitions: PgParty.config.include_subpartitions_in_partition_list) PgParty.cache.fetch_partitions(cache_key, include_subpartitions) do connection.partitions_for_table_name(table_name, include_subpartitions: include_subpartitions) end rescue [] end |
#range_partition_key_in(start_range, end_range) ⇒ Object
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# File 'lib/pg_party/model_decorator.rb', line 43 def range_partition_key_in(start_range, end_range) if complex_partition_key complex_partition_key_query( "(#{partition_key}) >= (?) AND (#{partition_key}) < (?)", start_range, end_range ) else where(partition_key_arel(:gteq, start_range).and(partition_key_arel(:lt, end_range))) end end |