Class: TinyQueries

Inherits:
Object
  • Object
show all
Defined in:
lib/tiny-queries.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ TinyQueries

Constructor



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# File 'lib/tiny-queries.rb', line 20

def initialize()
	@connector 	= nil
	@globals 	= {}
end

Instance Attribute Details

#connector ⇒ Object

:connector should be set to the path to connector.php



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# File 'lib/tiny-queries.rb', line 13

def connector
  @connector
end

#globals ⇒ Object

:globals is a hash to be used for global query parameters Global query parameters are sent to each query call along with the regular query parameters



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# File 'lib/tiny-queries.rb', line 17

def globals
  @globals
end

Instance Method Details

#run(term, params = {}) ⇒ Object

Runs a query term and returns the result as a hash Params:

term

query term, like “a” or “a(b)” or “a:b”

params

a hash for the query parameters



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# File 'lib/tiny-queries.rb', line 29

def run(term, params={})

	# Check if connector is set
	if @connector.nil?
		raise "You need to set a PHP-connector first - calling queries without connector is not supported yet"
	end

	if params.class != Hash
		raise "Parameters should be passed as a Hash"
	end
	
	# For backwards compatibility check if there is "php " prepended to @connector and remove it
	@connector = @connector.sub(/^php\s+/, '');
	
	# Execute the command and capture the output
	json = exec "php", @connector, term, JSON.generate( params ), JSON.generate( @globals );
	
	result = JSON.parse( json )
	
	# Check if result contains error message
	if result.class == Hash and result.has_key?("error")
		raise result["error"]
	end
	
	return result
end