Class: ActiveRecord::Tablefree::Connection

Inherits:
Object
  • Object
show all
Defined in:
lib/activerecord/tablefree/connection.rb

Instance Method Summary collapse

Instance Method Details

#cacheable_query(arel) ⇒ Object

This is used in the StatementCache object. It returns an object that can be used to query the database repeatedly.



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# File 'lib/activerecord/tablefree/connection.rb', line 62

def cacheable_query(arel) # :nodoc:
  if prepared_statements
    ActiveRecord::StatementCache.query visitor, arel.ast
  else
    ActiveRecord::StatementCache.partial_query visitor, arel.ast, collector
  end
end

#combine_bind_parameters(**_args) ⇒ Object

Called by bound_attributes in /lib/active_record/relation/query_methods.rb Returns a SQL string with the from, join, where, and having clauses,

in addition to the limit and offset.



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# File 'lib/activerecord/tablefree/connection.rb', line 44

def combine_bind_parameters(**_args)
  ''
end

#current_transaction ⇒ Object 



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# File 'lib/activerecord/tablefree/connection.rb', line 52

def current_transaction
  @_current_transaction ||= ActiveRecord::Tablefree::Transaction.new
end

#execute(*_args) ⇒ Object 



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# File 'lib/activerecord/tablefree/connection.rb', line 56

def execute(*_args)
  {}
end

#lookup_cast_type_from_column(*_args) ⇒ Object 



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# File 'lib/activerecord/tablefree/connection.rb', line 48

def lookup_cast_type_from_column(*_args)
  @_cast_type ||= ActiveRecord::Tablefree::CastType.new
end

#quote_column_name(*_args) ⇒ Object 



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# File 'lib/activerecord/tablefree/connection.rb', line 7

def quote_column_name(*_args)
  ''
end

#quote_table_name(*_args) ⇒ Object 



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# File 'lib/activerecord/tablefree/connection.rb', line 3

def quote_table_name(*_args)
  ''
end

#sanitize_limit(limit) ⇒ Object

Fixes Issue #17. github.com/softace/activerecord-tablefree/issues/17 The following method is from the ActiveRecord gem:

/lib/active_record/connection_adapters/abstract/database_statements.rb .

Sanitizes the given LIMIT parameter in order to prevent SQL injection.

The limit may be anything that can evaluate to a string via #to_s. It should look like an integer, or a comma-delimited list of integers, or an Arel SQL literal.

Returns Integer and Arel::Nodes::SqlLiteral limits as is. Returns the sanitized limit parameter, either as an integer, or as a string which contains a comma-delimited list of integers.



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# File 'lib/activerecord/tablefree/connection.rb', line 31

def sanitize_limit(limit)
  if limit.is_a?(Integer) || limit.is_a?(Arel::Nodes::SqlLiteral)
    limit
  elsif limit.to_s.include?(',')
    Arel.sql limit.to_s.split(',').map { |i| Integer(i) }.join(',')
  else
    Integer(limit)
  end
end

#schema_cache(*_args) ⇒ Object 



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# File 'lib/activerecord/tablefree/connection.rb', line 15

def schema_cache(*_args)
  @_schema_cache ||= ActiveRecord::Tablefree::SchemaCache.new
end

#substitute_at(*_args) ⇒ Object 



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# File 'lib/activerecord/tablefree/connection.rb', line 11

def substitute_at(*_args)
  nil
end