Module: MotionPrime::ModelFinderMixin::ClassMethods

Included in:
NSFNanoBag
Defined in:
motion-prime/models/_finder_mixin.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#bare_class ⇒ Object

Returns the value of attribute bare_class.



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# File 'motion-prime/models/_finder_mixin.rb', line 6

def bare_class
  @bare_class
end

Instance Method Details

#all(*args) ⇒ Object

Find all models



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# File 'motion-prime/models/_finder_mixin.rb', line 11

def all(*args)
  return [] unless self.store

  if args[0].is_a?(Hash)
    sort_options = args[0][:sort] || {}
  else
    sort_options = {}
  end

  if sort_options.empty?
    self.store.objectsOfClassNamed(self.bare_class_name)
  else
    sort_descriptors = sort_descriptor_with_options(sort_options)
    self.store.objectsOfClassNamed(self.bare_class_name, usingSortDescriptors:sort_descriptors)
  end
end

#bare_class_name ⇒ Object 



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# File 'motion-prime/models/_finder_mixin.rb', line 137

def bare_class_name
  subject = @bare_class || self
  subject.to_s.split("::").last
end

#find(*arg) ⇒ Object

Find model by criteria

@example:

User.find(1) # => [<User#1>]
User.find(:name => "Bob") # => [<User#1>]
User.find(:name => {NSFEqualTo => "Bob"}) # => [<User#1>]

Raises:



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# File 'motion-prime/models/_finder_mixin.rb', line 50

def find(*arg)
  if arg[0].is_a?(Hash)
    # hash style
    options = arg[0]
    if arg[1] && arg[1].is_a?(Hash)
      sort_options = arg[1][:sort] || {}
    else
      sort_options = {}
    end
  elsif arg[0] && arg[0].is_a?(Integer)
    return find(id: arg[0])
  elsif arg.empty?
    raise "Please use Model#all to find all records."
  else
    raise "Unexpected parameters: #{arg}."
  end
  search = NSFNanoSearch.searchWithStore(self.store)
  search.expressions = expressions_with_options(options)
  search.sort = sort_descriptor_with_options(sort_options)
  search.filterClass = self.bare_class_name

  error_ptr = Pointer.new(:id)
  searchResults = search.searchObjectsWithReturnType(NSFReturnObjects, error:error_ptr)
  raise StoreError, error_ptr[0].description if error_ptr[0]

  if searchResults.is_a?(NSDictionary)
    searchResults.values
  else
    searchResults
  end
end

#find_by_key(key) ⇒ Object, Nil

Find a model by key

@example:

User.find_by_key(my_key)

Returns:

  • (Object, Nil) —

    an object or nil (if not found)

Raises:



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# File 'motion-prime/models/_finder_mixin.rb', line 126

def find_by_key(key)
  search = NSFNanoSearch.searchWithStore(self.store)
  search.key = key

  error_ptr = Pointer.new(:id)
  searchResult = search.searchObjectsWithReturnType(NSFReturnObjects, error:error_ptr).first
  raise StoreError, error_ptr[0].description if error_ptr[0]

  searchResult.last if searchResult
end

#find_keys(*arg) ⇒ Object

Find model keys by criteria

@example:

User.find_keys(:name => "Bob") # => ["1"]
User.find_keys(:name => {NSFEqualTo => "Bob"}) # => ["1"]

Raises:



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# File 'motion-prime/models/_finder_mixin.rb', line 89

def find_keys(*arg)
  if arg[0].is_a?(Hash)
    options = arg[0]
    if arg[1] && arg[1].is_a?(Hash)
      sort_options = arg[1][:sort] || {}
    else
      sort_options = {}
    end
  elsif arg.empty?
    options = {}
    sort_options = {}
  else
    raise "unexpected parameters #{arg}"
  end

  search = NSFNanoSearch.searchWithStore(self.store)
  search.expressions = expressions_with_options(options)
  search.sort = sort_descriptor_with_options(sort_options)
  search.filterClass = self.bare_class_name

  error_ptr = Pointer.new(:id)
  searchResults = search.searchObjectsWithReturnType(NSFReturnKeys, error:error_ptr)
  raise StoreError, error_ptr[0].description if error_ptr[0]

  if searchResults.is_a?(NSDictionary)
    searchResults.values
  else
    searchResults
  end
end

#first ⇒ Object

Find first model model by default order



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# File 'motion-prime/models/_finder_mixin.rb', line 38

def first
  all.first
end

#last ⇒ Object

Find last model model by default order



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# File 'motion-prime/models/_finder_mixin.rb', line 31

def last
  all.last
end