Module: Minidoc::Finders::ClassMethods

Defined in:
lib/minidoc/finders.rb

Instance Method Summary collapse

Instance Method Details

#count(selector = {}) ⇒ Object 



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# File 'lib/minidoc/finders.rb', line 11

def count(selector = {})
  collection.count(query: selector)
end

#exists?(selector = {}) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/minidoc/finders.rb', line 15

def exists?(selector = {})
  count(selector) > 0
end

#find(id_or_selector, options = {}) ⇒ Object 



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# File 'lib/minidoc/finders.rb', line 19

def find(id_or_selector, options = {})
  if id_or_selector.is_a?(Hash)
    options.merge!(transformer: method(:wrap))
    collection.find(id_or_selector, options)
  else
    raise ArgumentError unless options.empty?
    id = BSON::ObjectId(id_or_selector.to_s)
    wrap(collection.find_one(_id: id))
  end
end

#find_one(selector, options = {}) ⇒ Object 



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# File 'lib/minidoc/finders.rb', line 30

def find_one(selector, options = {})
  wrap(collection.find_one(selector, options))
end

#first ⇒ Object 



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# File 'lib/minidoc/finders.rb', line 7

def first
  find_one({})
end

#from_db(attrs) ⇒ Object 



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# File 'lib/minidoc/finders.rb', line 34

def from_db(attrs)
  doc = new(attrs)
  doc.instance_variable_set("@new_record", false)
  doc
end

#wrap(doc) ⇒ Object 



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# File 'lib/minidoc/finders.rb', line 40

def wrap(doc)
  return nil unless doc

  if doc.is_a?(Array) || doc.is_a?(Mongo::Cursor)
    doc.map { |d| from_db(d) }
  else
    from_db(doc)
  end
end