Class: MultiTenant::CopyFromClientHelper

Inherits:
Object
  • Object
show all
Defined in:
lib/activerecord-multi-tenant/copy_from_client.rb

Overview

Designed to be mixed into an ActiveRecord model to provide a copy_from_client method that allows for efficient bulk insertion of data into a PostgreSQL database using the COPY command

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(conn, column_types) ⇒ CopyFromClientHelper

Returns a new instance of CopyFromClientHelper.



8
9
10
11
12
 
# File 'lib/activerecord-multi-tenant/copy_from_client.rb', line 8

def initialize(conn, column_types)
  @count = 0
  @conn = conn
  @column_types = column_types
end

Instance Attribute Details

#count ⇒ Object (readonly)

Returns the value of attribute count.



6
7
8
 
# File 'lib/activerecord-multi-tenant/copy_from_client.rb', line 6

def count
  @count
end

Instance Method Details

#<<(row) ⇒ Object 



14
15
16
17
18
 
# File 'lib/activerecord-multi-tenant/copy_from_client.rb', line 14

def <<(row)
  row = row.map.with_index { |val, idx| @column_types[idx].serialize(val) }
  @conn.put_copy_data(row)
  @count += 1
end