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package models |
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import ( |
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"github.com/memnix/memnixrest/pkg/database" |
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"github.com/memnix/memnixrest/pkg/utils" |
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"gorm.io/gorm" |
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"strings" |
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) |
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type Mcq struct { |
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gorm.Model `swaggerignore:"true"` |
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Name string `json:"mcq_name"` |
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Answers string `json:"mcq_answers"` |
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Type McqType `json:"mcq_type"` |
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DeckID uint `json:"deck_id" example:"1"` |
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Deck Deck |
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} |
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type McqType int64 |
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const ( |
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McqStandalone McqType = iota |
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McqLinked |
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) |
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// GetAnswers returns a list of answers |
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func (mcq *Mcq) GetAnswers() []string { |
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answersList := mcq.ExtractAnswers() |
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if mcq.Type == McqLinked { |
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answers := mcq.QueryLinkedAnswers() |
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if len(answers) != len(answersList) { |
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mcq.UpdateLinkedAnswers() |
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return answers |
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} |
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} |
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return answersList |
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} |
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// ExtractAnswers method |
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func (mcq *Mcq) ExtractAnswers() []string { |
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return strings.Split(mcq.Answers, ";") |
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} |
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// SetAnswers method |
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func (mcq *Mcq) SetAnswers(answers []string) { |
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mcq.Answers = strings.Join(answers, ";") |
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} |
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// QueryLinkedAnswers returns linked answers |
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func (mcq *Mcq) QueryLinkedAnswers() []string { |
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db := database.DBConn // DB Conn |
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var cards []Card |
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var responses []string |
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if err := db.Joins("Mcq").Where("cards.mcq_id = ?", mcq.ID).Find(&cards).Error; err != nil { |
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return responses |
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//TODO: Error logging |
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} |
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for i := range cards { |
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responses = append(responses, cards[i].Answer) |
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} |
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return responses |
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} |
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// NotValidate performs validation of the mcq |
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func (mcq *Mcq) NotValidate() bool { |
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return mcq.Type == McqStandalone && (len(mcq.Answers) < utils.MinMcqAnswersLen || len(mcq.Answers) > utils.MaxMcqAnswersLen) || len(mcq.Name) > utils.MaxMcqName || mcq.Name == "" |
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} |
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// FillWithLinkedAnswers method |
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func (mcq *Mcq) FillWithLinkedAnswers() *ResponseHTTP { |
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res := new(ResponseHTTP) |
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answers := mcq.QueryLinkedAnswers() |
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if len(answers) == 0 { |
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res.GenerateError("Couldn't query linked answers") |
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return res |
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} |
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mcq.SetAnswers(answers) |
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res.GenerateSuccess("Success fill mcq with linked answers", answers, len(answers)) |
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return res |
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} |
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// UpdateLinkedAnswers method to update the db |
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func (mcq *Mcq) UpdateLinkedAnswers() *ResponseHTTP { |
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db := database.DBConn // DB Conn |
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res := new(ResponseHTTP) |
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if err := mcq.FillWithLinkedAnswers(); !err.Success { |
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res.GenerateError(err.Message) |
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return res |
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} |
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if err := db.Save(mcq).Error; err != nil { |
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res.GenerateError(err.Error()) |
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return res |
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} |
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res.GenerateSuccess("Success update mcq with linked answers", nil, 0) |
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return res |
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} |
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memnix /
memnix-rest
