Module: Arango::Database::AQLFunctions

Included in:
Arango::Database
Defined in:
lib/arango/database/aql_functions.rb

Instance Method Summary collapse

Instance Method Details

#create_aql_function(name, code: nil, is_deterministic: nil, &block) ⇒ Object 



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# File 'lib/arango/database/aql_functions.rb', line 12

def create_aql_function(name, code: nil, is_deterministic: nil, &block)
  if block_given?
    source_block = Parser::CurrentRuby.parse(block.source).children.last
    source_block = source_block.children.last if source_block.type == :block
    source_code = Unparser.unparse(source_block)
    ruby_header = <<~RUBY
    args = `original_arguments`
    RUBY
    compiled_ruby= Opal.compile(ruby_header + source_code, parse_comments: false)
    if compiled_ruby.start_with?('/*')
      start_of_code = compiled_ruby.index('*/') + 3
      compiled_ruby = compiled_ruby[start_of_code..-1]
    end
    code = <<~JAVASCRIPT
    function() {
      "use strict";
      require('opal');
      var original_arguments = Array.prototype.slice.call(arguments);
      for (var i=0; i<original_arguments.length; i++) {
        if (typeof original_arguments[i] === "object" && !(original_arguments[i] instanceof Array)) {
          original_arguments[i] = Opal.Hash.$new(original_arguments[i]);
        }
      }
      var result = #{compiled_ruby}
      if (typeof result['$to_n'] === "function") { result = result['$to_n'](); }
      return result;
    }
    JAVASCRIPT
  end
  body = { name: name, code: code, isDeterministic: is_deterministic }
  Arango::Requests::AQL::CreateFunction.execute(server: @server, body: body)
  true
end

#drop_aql_function(name, namespace: nil) ⇒ Object 



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# File 'lib/arango/database/aql_functions.rb', line 46

def drop_aql_function(name, namespace: nil)
  params = nil
  params = { namespace: namespace } unless group.nil?
  args = { name: name }
  Arango::Requests::AQL::CreateFunction.execute(server: @server, args: args, params: params)
  true
end

#list_aql_functions(namespace: nil) ⇒ Object 



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# File 'lib/arango/database/aql_functions.rb', line 5

def list_aql_functions(namespace: nil)
  params = nil
  params = { namespace: namespace } unless namespace.nil?
  result = Arango::Requests::AQL::ListFunctions(server: @server, params: params)
  result.map { |r| Arango::Result.new(r) }
end