Class: Cassanity::ArgumentGenerators::ColumnFamilyInsert

Inherits:
Object
  • Object
show all
Defined in:
lib/cassanity/argument_generators/column_family_insert.rb

Instance Method Summary collapse

Instance Method Details

#call(args = {}) ⇒ Object

Internal: Converts a Hash of arguments to CQL with bound variables.

args - The Hash of arguments to use.

:name - The String name of the column family
:data - The Hash of keys and values to insert
:using - The Hash of options for the query ie: consistency, ttl,
         and timestamp (optional).

Examples

call({
  name: 'apps',
  data: {id: '1', name: 'GitHub'},
})

call({
  name: 'apps',
  data: {id: '1', name: 'GitHub'},
  using: {consistency: 'quorum'},
})

Returns Array where first element is CQL string and the rest are

bound values.



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# File 'lib/cassanity/argument_generators/column_family_insert.rb', line 28

def call(args = {})
  name    = args.fetch(:name)
  data    = args.fetch(:data)
  using   = args[:using] || {}
  keys    = data.keys
  binders = ['?'] * keys.size

  if (keyspace_name = args[:keyspace_name])
    name = "#{keyspace_name}.#{name}"
  end

  cql = "INSERT INTO #{name} (#{keys.join(', ')}) VALUES (#{binders.join(', ')})"

  unless using.empty?
    statements = []
    using.each do |key, value|
      statements << "#{key.upcase} #{value}"
    end
    cql << " USING #{statements.join(' AND ')}"
  end

  [cql, *data.values]
end