mongo

func (Service) Close ¶

func (s Service) Close()

Close terminates the mockService session

func (Service) DeleteWordsByCategory ¶

func (s Service) DeleteWordsByCategory(userID string, category string) error

func (Service) ExistUser ¶

func (s Service) ExistUser(user golearn.User) (bool, error)

ExistUser returns bool if user already exists in db

func (Service) GetCategories ¶

func (s Service) GetCategories(userID string) ([]golearn.Category, error)

GetCategories returns list of unique categories based on words table.

func (Service) GetState ¶

func (s Service) GetState(userKey string) (golearn.State, error)

GetState returns lastest saved user state

func (Service) GetStatistics ¶

func (s Service) GetStatistics(userID string, year int, month int, week int, day int) (golearn.Statistics, error)

func (Service) GetUser ¶

func (s Service) GetUser(userID string) (golearn.User, error)

GetUser returns user from db

func (Service) InsertActivity ¶

func (s Service) InsertActivity(activity golearn.Activity) error

func (Service) InsertUser ¶

func (s Service) InsertUser(user golearn.User) error

InsertUser inserts new user to users collection

func (Service) InsertWord ¶

func (s Service) InsertWord(w golearn.Row) error

InsertWord inserts new row to words collection

func (Service) RandomAnswers ¶

func (s Service) RandomAnswers(q golearn.Row, count int) ([]golearn.Row, error)

RandomAnswers returns random answers with passed count of total answers. q is right answer which will be appended to result slice and will be shuffled later. count is total amount of answers which is included the right one.

In order to get random rows function generates random number which is used as offset. In order to guarantee that function returns exactly passed "count" of words function calculated maximum allowed random number. If generated random number of greater that allowed function uses maximum number.

Example: In case if passed count is equal 4. Function has to find 3 random rows and 1 (the passed one) will be appended to result slice. Generated random number is equal 7, that means function returns just 1 rows (8). Function moves cursor to position 5 to return enough rows (6,7,8).

Moved         Generated
  +---------------+
  |               |
  v               v

+-------+-------+-------+-------+---+---+-------+---+---+-------+ | | | | | | | | | | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | | | | | | | | | | +-------+-------+-------+-------+-------+-------+-------+-------+

func (Service) RandomQuestion ¶

func (s Service) RandomQuestion(category string) (golearn.Row, error)

RandomQuestion returns random row

func (Service) ResetState ¶

func (s Service) ResetState(userKey string) error

ResetState resets user state

func (Service) SetState ¶

func (s Service) SetState(state golearn.State) error

SetState save latest given set of question and answers

func (Service) SetUserCategory ¶

func (s Service) SetUserCategory(userID string, category string) error

func (Service) SetUserMode ¶

func (s Service) SetUserMode(userID string, mode string) error

SetUserMode sets new mode for passed user id

func (Service) UpdateUser ¶

func (s Service) UpdateUser(user golearn.User) error

UpdateUser updates user