Class: SimpleMySQLPartitioning::Executor

Inherits:
Object
  • Object
show all
Defined in:
lib/simple_mysql_partitioning/executor.rb

Instance Method Summary collapse

Constructor Details

#initialize(klass, partition_name) ⇒ Executor

Returns a new instance of Executor.



6
7
8
9
10
 
# File 'lib/simple_mysql_partitioning/executor.rb', line 6

def initialize(klass, partition_name)
  @klass = klass
  @table_name = @klass.table_name
  @partition_name = partition_name
end

Instance Method Details

#add(less_than_value) ⇒ Object 



12
13
14
15
16
 
# File 'lib/simple_mysql_partitioning/executor.rb', line 12

def add(less_than_value)
  return if exist?
  add_partition_sql = SQL.add_sql(@table_name, @partition_name, less_than_value)
  @klass.connection.execute(add_partition_sql)
end

#drop ⇒ Object 



35
36
37
38
 
# File 'lib/simple_mysql_partitioning/executor.rb', line 35

def drop
  return unless exist?
  @klass.connection.execute(SQL.parge_sql(@table_name, @partition_name))
end

#exist? ⇒ Boolean

Returns:

  • (Boolean) 


29
30
31
32
33
 
# File 'lib/simple_mysql_partitioning/executor.rb', line 29

def exist?
  @klass.connection.select_all(
    SQL.exist_sql(@table_name, @partition_name)
  ).to_hash.present?
end

#reorganize(less_than_value, reorganize_partition_name) ⇒ Object 



18
19
20
21
22
23
24
25
26
27
 
# File 'lib/simple_mysql_partitioning/executor.rb', line 18

def reorganize(less_than_value, reorganize_partition_name)
  return if exist?
  @klass.connection.execute(
    SQL.reorganize_sql(
      @table_name,
      @partition_name, less_than_value,
      reorganize_partition_name
    )
  )
end