func AllProducts() (apiProducts []*duoerlapi.Product, err error) {
// Find all the products
dbProducts, err := products.FindAll(bson.M{})
if err != nil {
utils.PrintStackAndError(err)
return
}
// Collect brand/author Ids and find them
brandIds, authorIds := products.CollectBrandAndAuthorIds(dbProducts)
dbBrands, err := brands.FindByIds(brandIds)
if err != nil {
utils.PrintStackAndError(err)
return
}
dbAuthors, err := users.FindByIds(authorIds)
if err != nil {
utils.PrintStackAndError(err)
return
}
// Build the brandMap and authorMap
brandMap := brands.BuildBrandMap(dbBrands)
authorMap := users.BuildUserMap(dbAuthors)
apiProducts = toApiProducts(dbProducts, brandMap, authorMap)
return
}
func GetBrandFollowers(brandIdHex string) (apiUsers []*duoerlapi.User, err error) {
brandId, err := utils.ToObjectId(brandIdHex)
if err != nil {
utils.PrintStackAndError(err)
return
}
followbrandz, err := followbrands.FindByBrandId(brandId)
if err != nil {
utils.PrintStackAndError(err)
return
}
maxNum := len(followbrandz)
// Get random number users
if maxNum > configs.BRAND_SHOW_FOLLOWER_NUM {
randIndex, err := randutil.IntRange(0, maxNum)
if err != nil {
utils.PrintStackAndError(err)
randIndex = 0
}
leftIndex := randIndex - configs.BRAND_SHOW_FOLLOWER_NUM
if leftIndex < 0 {
followbrandz = followbrandz[0:configs.BRAND_SHOW_FOLLOWER_NUM]
} else {
followbrandz = followbrandz[leftIndex:randIndex]
}
}
followerIds := []bson.ObjectId{}
for _, followBrand := range followbrandz {
followerIds = append(followerIds, followBrand.UserId)
}
followers, err := users.FindByIds(followerIds)
if err != nil {
utils.PrintStackAndError(err)
return
}
apiUsers = toApiUsers(followers)
return
}
func makeApiReviews(reviewz []*reviews.Review) (apiReviews []*duoerlapi.Review, err error) {
authorIds, productIds := reviews.CollectAuthorAndProductIds(reviewz)
authorz, err := users.FindByIds(authorIds)
if err != nil {
utils.PrintStackAndError(err)
return
}
productz, err := products.FindByIds(productIds)
if err != nil {
utils.PrintStackAndError(err)
return
}
productMap := products.BuildProductMap(productz)
authorMap := users.BuildUserMap(authorz)
apiReviews = toApiReviews(reviewz, productMap, authorMap)
return
}