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package queries |
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import ( |
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"errors" |
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"math/rand" |
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"memnixrest/app/database" |
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"memnixrest/app/models" |
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"memnixrest/pkg/core" |
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"time" |
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"github.com/gofiber/fiber/v2" |
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"gorm.io/gorm" |
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) |
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func DeleteRating(c *fiber.Ctx, user *models.User, deck *models.Deck) models.ResponseHTTP { |
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db := database.DBConn |
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rating := new(models.Rating) |
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if err := db.Where("ratings.user_id = ? AND ratings.deck_id = ?", user.ID, deck.ID).Delete(&rating).Error; err != nil { |
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return models.ResponseHTTP{ |
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Success: false, |
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Message: err.Error(), |
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Data: nil, |
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Count: 0, |
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} |
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} |
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return models.ResponseHTTP{ |
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Success: true, |
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Message: "Rating deleted", |
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Data: *rating, |
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Count: 1, |
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} |
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} |
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func GenerateRating(c *fiber.Ctx, rating *models.Rating) models.ResponseHTTP { |
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db := database.DBConn |
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deck := new(models.Deck) |
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if err := db.First(&deck, rating.DeckID).Error; err != nil { |
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return models.ResponseHTTP{ |
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Success: false, |
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Message: "Can't find deck matching the ID provided", |
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Data: nil, |
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Count: 0, |
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} |
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} |
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access := new(models.Access) |
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if err := db.Joins("User").Joins("Deck").Where("accesses.user_id = ? AND accesses.deck_id =?", rating.UserID, rating.DeckID).First(&access).Error; err != nil { |
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return models.ResponseHTTP{ |
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Success: false, |
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Message: "You don't have the permissions to rate this deck", |
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Data: nil, |
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Count: 0, |
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} |
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} |
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if access.Permission < models.AccessStudent { |
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return models.ResponseHTTP{ |
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Success: false, |
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Message: "You are not subscribed to this deck", |
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Data: nil, |
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Count: 0, |
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} |
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} |
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oldRating := new(models.Rating) |
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if err := db.Joins("User").Joins("Deck").Where("ratings.user_id = ? AND ratings.deck_id = ?", rating.UserID, rating.DeckID).First(&oldRating).Error; err != nil { |
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if errors.Is(err, gorm.ErrRecordNotFound) { |
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db.Preload("User").Preload("Deck").Create(rating) |
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oldRating = rating |
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} |
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} else { |
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oldRating.Value = rating.Value |
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db.Preload("User").Preload("Deck").Save(oldRating) |
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} |
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return models.ResponseHTTP{ |
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Success: true, |
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Message: "Success rate the deck", |
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Data: *oldRating, |
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Count: 1, |
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} |
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} |
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// GenerateAccess |
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func GenerateAccess(c *fiber.Ctx, user *models.User, deck *models.Deck) models.ResponseHTTP { |
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db := database.DBConn |
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if deck.Status != models.DeckPublic && user.Permissions != models.PermAdmin { |
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return models.ResponseHTTP{ |
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Success: false, |
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Message: "You don't have the permissions to subscribe to this deck!", |
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Data: nil, |
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Count: 0, |
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} |
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} |
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access := new(models.Access) |
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if err := db.Joins("User").Joins("Deck").Where("accesses.user_id = ? AND accesses.deck_id =?", user.ID, deck.ID).Find(&access).Error; err != nil { |
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if errors.Is(err, gorm.ErrRecordNotFound) { |
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access.DeckID = deck.ID |
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access.UserID = user.ID |
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access.Permission = 1 |
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db.Preload("User").Preload("Deck").Create(access) |
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} |
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} else { |
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if access.Permission >= models.AccessStudent { |
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return models.ResponseHTTP{ |
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Success: false, |
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Message: "You are already subscribed to this deck", |
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Data: nil, |
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Count: 0, |
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} |
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} else { |
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access.DeckID = deck.ID |
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access.UserID = user.ID |
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access.Permission = 1 |
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db.Preload("User").Preload("Deck").Save(access) |
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} |
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} |
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return models.ResponseHTTP{ |
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Success: true, |
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Message: "Success register an access", |
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Data: *access, |
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Count: 1, |
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} |
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} |
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func CheckAccess(c *fiber.Ctx, user *models.User, card *models.Card) models.Access { |
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db := database.DBConn // DB Conn |
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access := new(models.Access) |
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if err := db.Joins("User").Joins("Deck").Where("accesses.user_id = ? AND accesses.deck_id = ?", user.ID, card.DeckID).First(&access).Error; err != nil { |
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access.Permission = 0 |
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return *access |
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} |
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return *access |
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} |
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func PostMem(c *fiber.Ctx, user models.User, card models.Card, validation models.CardResponseValidation) models.ResponseHTTP { |
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db := database.DBConn // DB Conn |
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memDate := new(models.MemDate) |
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if err := db.Joins("Card").Joins("User").Joins("Deck").Where("mem_dates.user_id = ? AND mem_dates.card_id = ?", |
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&user.ID, card.ID).First(&memDate).Error; err != nil { |
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return models.ResponseHTTP{ |
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Success: false, |
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Message: "MemDate Not Found", |
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Data: nil, |
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} |
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} |
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ex_mem := FetchMem(c, memDate, &user) |
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if ex_mem.Efactor == 0 { |
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ex_mem = models.Mem{ |
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UserID: user.ID, |
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CardID: card.ID, |
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Quality: 0, |
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Repetition: 0, |
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Efactor: 2.5, |
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Interval: 0, |
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} |
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} |
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core.UpdateMem(c, &ex_mem, validation) |
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return models.ResponseHTTP{ |
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Success: true, |
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Message: "Success Post Mem", |
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Data: nil, |
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} |
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} |
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func PopulateMemDate(c *fiber.Ctx, user *models.User, deck *models.Deck) models.ResponseHTTP { |
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db := database.DBConn // DB Conn |
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var cards []models.Card |
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if err := db.Joins("Deck").Where("cards.deck_id = ?", deck.ID).Find(&cards).Error; err != nil { |
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return models.ResponseHTTP{ |
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Success: false, |
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Message: err.Error(), |
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Data: nil, |
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Count: 0, |
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} |
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} |
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for _, s := range cards { |
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_ = GenerateMemDate(c, user, &s) |
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} // TODO: Handle errors |
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return models.ResponseHTTP{ |
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Success: true, |
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Message: "Success generated mem_date", |
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Data: nil, |
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Count: 0, |
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} |
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} |
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func GenerateMemDate(c *fiber.Ctx, user *models.User, card *models.Card) models.ResponseHTTP { |
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db := database.DBConn // DB Conn |
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memDate := new(models.MemDate) |
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if err := db.Joins("User").Joins("Card").Where("mem_dates.user_id = ? AND mem_dates.card_id = ?", user.ID, card.ID).First(&memDate).Error; err != nil { |
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if errors.Is(err, gorm.ErrRecordNotFound) { |
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memDate = &models.MemDate{ |
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UserID: user.ID, |
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CardID: card.ID, |
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DeckID: card.DeckID, |
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NextDate: time.Now(), |
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} |
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db.Preload("User").Preload("Card").Create(memDate) |
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} else { |
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return models.ResponseHTTP{ |
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Success: false, |
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Message: err.Error(), |
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Data: nil, |
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Count: 0, |
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} |
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} |
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} |
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return models.ResponseHTTP{ |
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Success: true, |
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Message: "Success generate MemDate", |
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Data: *memDate, |
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Count: 1, |
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} |
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} |
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// FetchAnswers |
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func FetchAnswers(c *fiber.Ctx, card *models.Card) []models.Answer { |
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var answers []models.Answer |
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db := database.DBConn // DB Conn |
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249
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if err := db.Joins("Card").Where("answers.card_id = ?", card.ID).Limit(3).Order("random()").Find(&answers).Error; err != nil { |
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return nil |
251
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} |
252
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253
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return answers |
254
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} |
255
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256
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func FetchMem(c *fiber.Ctx, memDate *models.MemDate, user *models.User) models.Mem { |
257
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db := database.DBConn // DB Conn |
258
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259
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mem := new(models.Mem) |
260
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if err := db.Joins("Card").Where("mems.card_id = ? AND mems.user_id = ?", memDate.CardID, user.ID).Order("id desc").First(&mem).Error; err != nil { |
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mem.Efactor = 0 |
262
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} |
263
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return *mem |
264
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} |
265
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266
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func GenerateAnswers(c *fiber.Ctx, memDate *models.MemDate) []string { |
267
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var answersList []string |
268
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269
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res := FetchAnswers(c, &memDate.Card) |
270
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271
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if len(res) >= 3 { |
272
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answersList = append(answersList, res[0].Answer, res[1].Answer, res[2].Answer, memDate.Card.Answer) |
273
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274
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rand.Seed(time.Now().UnixNano()) |
275
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rand.Shuffle(len(answersList), func(i, j int) { answersList[i], answersList[j] = answersList[j], answersList[i] }) |
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} |
277
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278
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return answersList |
279
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280
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} |
281
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282
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func FetchNextCard(c *fiber.Ctx, user *models.User) models.ResponseHTTP { |
283
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db := database.DBConn // DB Conn |
284
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285
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memDate := new(models.MemDate) |
286
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var answersList []string |
287
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288
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// Get next card |
289
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if err := db.Joins( |
290
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"left join accesses ON mem_dates.deck_id = accesses.deck_id AND accesses.user_id = ?", |
291
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user.ID).Joins("Card").Joins("Deck").Where("mem_dates.user_id = ? AND accesses.permission >= ?", |
292
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&user.ID, models.AccessStudent).Limit(1).Order("next_date asc").Find(&memDate).Error; err != nil { |
293
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return models.ResponseHTTP{ |
294
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Success: false, |
295
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Message: "Next card not found", |
296
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Data: nil, |
297
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} |
298
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} |
299
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300
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mem := FetchMem(c, memDate, user) |
301
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if mem.Efactor <= 1.4 || mem.Quality <= 1 || mem.Repetition < 2 { |
302
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answersList = GenerateAnswers(c, memDate) |
303
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if len(answersList) == 4 { |
304
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memDate.Card.Type = 2 // MCQ |
305
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} |
306
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} |
307
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308
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return models.ResponseHTTP{ |
309
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Success: true, |
310
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Message: "Get Next Card", |
311
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Data: models.ResponseCard{ |
312
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Card: memDate.Card, |
313
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Answers: answersList, |
314
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}, |
315
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} |
316
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} |
317
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318
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func FetchNextCardByDeck(c *fiber.Ctx, user *models.User, deckID string) models.ResponseHTTP { |
319
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db := database.DBConn // DB Conn |
320
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321
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memDate := new(models.MemDate) |
322
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var answersList []string |
323
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324
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// Get next card |
325
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if err := db.Joins("Card").Joins("User").Joins("Deck").Where("mem_dates.user_id = ? AND mem_dates.deck_id = ?", |
326
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&user.ID, deckID).Limit(1).Order("next_date asc").Find(&memDate).Error; err != nil { |
327
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return models.ResponseHTTP{ |
328
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Success: false, |
329
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Message: "Next card by deck not found", |
330
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Data: nil, |
331
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} |
332
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} |
333
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|
334
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mem := FetchMem(c, memDate, user) |
335
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if mem.Efactor <= 1.4 || mem.Quality <= 1 || mem.Repetition < 2 { |
336
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answersList = GenerateAnswers(c, memDate) |
337
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if len(answersList) == 4 { |
338
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memDate.Card.Type = 2 // MCQ |
339
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} |
340
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} |
341
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342
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return models.ResponseHTTP{ |
343
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Success: true, |
344
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Message: "Get Next Card By Deck", |
345
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Data: models.ResponseCard{ |
346
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Card: memDate.Card, |
347
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Answers: answersList, |
348
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}, |
349
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} |
350
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} |
351
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352
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// FetchNextTodayCard |
353
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func FetchNextTodayCard(c *fiber.Ctx, user *models.User) models.ResponseHTTP { |
354
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|
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db := database.DBConn // DB Conn |
355
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memDate := new(models.MemDate) |
356
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357
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var answersList []string |
358
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359
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// Get next card with date condition |
360
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t := time.Now() |
361
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362
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if err := db.Joins( |
363
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"left join accesses ON mem_dates.deck_id = accesses.deck_id AND accesses.user_id = ?", |
364
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|
|
user.ID).Joins("Card").Joins("Deck").Where("mem_dates.user_id = ? AND mem_dates.next_date < ? AND accesses.permission >= ?", |
365
|
|
|
&user.ID, t.AddDate(0, 0, 1).Add( |
366
|
|
|
time.Duration(-t.Hour())*time.Hour), models.AccessStudent).Limit(1).Order("next_date asc").Find(&memDate).Error; err != nil { |
367
|
|
|
return models.ResponseHTTP{ |
368
|
|
|
Success: false, |
369
|
|
|
Message: "Next today card not found", |
370
|
|
|
Data: nil, |
371
|
|
|
} |
372
|
|
|
} |
373
|
|
|
mem := FetchMem(c, memDate, user) |
374
|
|
|
if mem.Efactor <= 1.4 || mem.Quality <= 1 || mem.Repetition < 2 { |
375
|
|
|
answersList = GenerateAnswers(c, memDate) |
376
|
|
|
if len(answersList) == 4 { |
377
|
|
|
memDate.Card.Type = 2 // MCQ |
378
|
|
|
} |
379
|
|
|
} |
380
|
|
|
|
381
|
|
|
return models.ResponseHTTP{ |
382
|
|
|
Success: true, |
383
|
|
|
Message: "Get Next Today Card", |
384
|
|
|
Data: models.ResponseCard{ |
385
|
|
|
Card: memDate.Card, |
386
|
|
|
Answers: answersList, |
387
|
|
|
}, |
388
|
|
|
} |
389
|
|
|
} |
390
|
|
|
|