Class: DatastaxRails::Cql::ColumnFamily

Inherits:
Object
  • Object
show all
Defined in:
lib/datastax_rails/cql/column_family.rb

Overview

Helper class to create CQL-building objects

Instance Method Summary collapse

Constructor Details

#initialize(klass) ⇒ ColumnFamily

Returns a new instance of ColumnFamily.



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# File 'lib/datastax_rails/cql/column_family.rb', line 5

def initialize(klass)
  @klass = klass
end

Instance Method Details

#create_column_family ⇒ Object 



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# File 'lib/datastax_rails/cql/column_family.rb', line 9

def create_column_family
  DatastaxRails::Cql::CreateColumnFamily.new(@klass.column_family)
end

#delete(key) ⇒ Object 



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# File 'lib/datastax_rails/cql/column_family.rb', line 13

def delete(key)
  DatastaxRails::Cql::Delete.new(@klass, key)
end

#drop_column_family ⇒ Object 



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# File 'lib/datastax_rails/cql/column_family.rb', line 21

def drop_column_family
  DatastaxRails::Cql::DropColumnFamily.new(@klass.column_family)
end

#insert ⇒ Object 



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# File 'lib/datastax_rails/cql/column_family.rb', line 17

def insert
  DatastaxRails::Cql::Insert.new(@klass)
end

#select(*columns) ⇒ Object 



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# File 'lib/datastax_rails/cql/column_family.rb', line 25

def select(*columns)
  columns << '*' if columns.empty?
  DatastaxRails::Cql::Select.new(@klass, columns.flatten)
end

#truncate ⇒ Object 



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# File 'lib/datastax_rails/cql/column_family.rb', line 30

def truncate
  DatastaxRails::Cql::Truncate.new(@klass)
end

#update(key) ⇒ Object 



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# File 'lib/datastax_rails/cql/column_family.rb', line 34

def update(key)
  DatastaxRails::Cql::Update.new(@klass, key)
end