Module: Aggrobot

Defined in:
lib/aggrobot.rb,
lib/aggrobot/errors.rb,
lib/aggrobot/helper.rb,
lib/aggrobot/version.rb,
lib/aggrobot/aggrobot.rb,
lib/aggrobot/aggregator.rb,
lib/aggrobot/sql_functions.rb,
lib/aggrobot/aggrobot_error.rb,
lib/aggrobot/sql_functions/mysql.rb,
lib/aggrobot/sql_functions/pgsql.rb,
lib/aggrobot/sql_functions/common.rb,
lib/aggrobot/sql_functions/sqlite.rb,
lib/aggrobot/query_planner/parameters_validator.rb,
lib/aggrobot/query_planner/default_query_planner.rb,
lib/aggrobot/query_planner/group_limit_query_planner.rb,
lib/aggrobot/query_planner/bucketed_groups_query_planner.rb

Defined Under Namespace

Modules: Helper, QueryPlanner, SQLFunctions Classes: Aggregator, Aggrobot, AggrobotError, ArgumentError, Error

Constant Summary collapse

DEFAULT_GROUP_BY =

‘aggrobot_default_group’

1
VERSION = 
"0.1.0"

Class Method Summary collapse

Class Method Details

.block(&block) ⇒ Object 



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# File 'lib/aggrobot.rb', line 31

def self.block(&block)
  block
end

.setup(app) ⇒ Object

sets ROUNDING_DIGITS to percent_precision, default is 2



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# File 'lib/aggrobot.rb', line 36

def self.setup(app)
  SQLFunctions.setup(app.config.aggrobot.percent_precision)
end

.start(collection = nil, block_arg = nil, block_opts = nil, &block) ⇒ Object

when

collection is given, starts aggregation by evaluating block on collection
collection is not given, starts aggregation by evaluating block on full data set



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# File 'lib/aggrobot.rb', line 20

def self.start(collection = nil, block_arg = nil, block_opts = nil, &block)
  block_opts ||= block_arg if block
  block = block_arg if block_arg && block_arg.respond_to?(:call)
  raise 'Block parameter required' unless block
  original_block_context = eval "self", block.binding
  attrs = if block.arity > 0
            block_opts.is_a?(Hash) ? block_opts : {count: collection.count}
          end
  Aggrobot.new(original_block_context, collection).instance_exec(attrs, &block)
end