feat(trade): implement second-hand trading/flea market feature
Add complete trade functionality including: - TradeItem, TradeImage, TradeFavorite models with auto-migration - TradeRepository with CRUD and favorite operations - TradeService with business logic for listing, creating, updating, status management - TradeHandler with RESTful endpoints for trade operations - DTOs and converters for request/response handling Routes include: list, get by id, create, update, delete, status update, view recording, favorite/unfavorite.
This commit is contained in:
lafay
101
internal/dto/trade_converter.go
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101
internal/dto/trade_converter.go
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package dto
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import (
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"with_you/internal/model"
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)
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func ConvertTradeImageToResponse(img *model.TradeImage) TradeImageResponse {
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if img == nil {
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return TradeImageResponse{}
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}
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return TradeImageResponse{
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ID: img.ID,
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URL: img.URL,
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ThumbnailURL: img.ThumbnailURL,
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PreviewURL: img.PreviewURL,
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PreviewURLLarge: img.PreviewURLLarge,
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Width: img.Width,
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Height: img.Height,
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}
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}
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func ConvertTradeImagesToResponse(images []model.TradeImage) []TradeImageResponse {
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result := make([]TradeImageResponse, 0, len(images))
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for i := range images {
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result = append(result, ConvertTradeImageToResponse(&images[i]))
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}
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return result
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}
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func ConvertTradeItemToResponse(item *model.TradeItem, isFavorited bool) *TradeItemResponse {
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if item == nil {
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return nil
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}
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resp := &TradeItemResponse{
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ID: item.ID,
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UserID: item.UserID,
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TradeType: string(item.TradeType),
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Category: string(item.Category),
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Title: item.Title,
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Content: item.Content,
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Price: item.Price,
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OriginalPrice: item.OriginalPrice,
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Condition: item.Condition,
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Location: item.Location,
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Status: string(item.Status),
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ViewsCount: item.ViewsCount,
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FavoritesCount: item.FavoritesCount,
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IsFavorited: isFavorited,
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Images: ConvertTradeImagesToResponse(item.Images),
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CreatedAt: item.CreatedAt.Format("2006-01-02T15:04:05Z07:00"),
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UpdatedAt: item.UpdatedAt.Format("2006-01-02T15:04:05Z07:00"),
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}
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if len(item.Segments) > 0 {
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resp.Segments = item.Segments
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}
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if item.User != nil {
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resp.Author = ConvertUserToResponse(item.User)
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}
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return resp
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}
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func ConvertTradeItemsToResponse(items []*model.TradeItem, favoriteMap map[string]bool) []*TradeItemResponse {
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result := make([]*TradeItemResponse, 0, len(items))
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for _, item := range items {
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isFav := favoriteMap[item.ID]
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result = append(result, ConvertTradeItemToResponse(item, isFav))
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}
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return result
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}
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func ConvertTradeItemToDetailResponse(item *model.TradeItem, isFavorited bool) *TradeItemDetailResponse {
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if item == nil {
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return nil
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}
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resp := &TradeItemDetailResponse{
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ID: item.ID,
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UserID: item.UserID,
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TradeType: string(item.TradeType),
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Category: string(item.Category),
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Title: item.Title,
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Content: item.Content,
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Price: item.Price,
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OriginalPrice: item.OriginalPrice,
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Condition: item.Condition,
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Location: item.Location,
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Status: string(item.Status),
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ViewsCount: item.ViewsCount,
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FavoritesCount: item.FavoritesCount,
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IsFavorited: isFavorited,
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Images: ConvertTradeImagesToResponse(item.Images),
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CreatedAt: item.CreatedAt.Format("2006-01-02T15:04:05Z07:00"),
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UpdatedAt: item.UpdatedAt.Format("2006-01-02T15:04:05Z07:00"),
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}
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if len(item.Segments) > 0 {
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resp.Segments = item.Segments
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}
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if item.User != nil {
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resp.Author = ConvertUserToResponse(item.User)
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}
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return resp
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}
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100
internal/dto/trade_dto.go
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100
internal/dto/trade_dto.go
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@@ -0,0 +1,100 @@
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package dto
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import (
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"with_you/internal/model"
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)
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type TradeImageResponse struct {
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ID string `json:"id"`
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URL string `json:"url"`
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ThumbnailURL string `json:"thumbnail_url"`
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PreviewURL string `json:"preview_url"`
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PreviewURLLarge string `json:"preview_url_large"`
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Width int `json:"width"`
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Height int `json:"height"`
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}
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type TradeItemResponse struct {
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ID string `json:"id"`
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UserID string `json:"user_id"`
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TradeType string `json:"trade_type"`
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Category string `json:"category"`
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Title string `json:"title"`
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Content string `json:"content"`
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Segments model.MessageSegments `json:"segments,omitempty"`
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Images []TradeImageResponse `json:"images"`
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Price *float64 `json:"price,omitempty"`
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OriginalPrice *float64 `json:"original_price,omitempty"`
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Condition string `json:"condition,omitempty"`
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Location string `json:"location,omitempty"`
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Status string `json:"status"`
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ViewsCount int `json:"views_count"`
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FavoritesCount int `json:"favorites_count"`
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IsFavorited bool `json:"is_favorited"`
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Author *UserResponse `json:"author"`
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CreatedAt string `json:"created_at"`
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UpdatedAt string `json:"updated_at"`
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}
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type TradeItemDetailResponse struct {
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ID string `json:"id"`
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UserID string `json:"user_id"`
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TradeType string `json:"trade_type"`
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Category string `json:"category"`
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Title string `json:"title"`
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Content string `json:"content"`
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Segments model.MessageSegments `json:"segments,omitempty"`
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Images []TradeImageResponse `json:"images"`
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Price *float64 `json:"price,omitempty"`
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OriginalPrice *float64 `json:"original_price,omitempty"`
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Condition string `json:"condition,omitempty"`
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Location string `json:"location,omitempty"`
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Status string `json:"status"`
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ViewsCount int `json:"views_count"`
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FavoritesCount int `json:"favorites_count"`
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IsFavorited bool `json:"is_favorited"`
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Author *UserResponse `json:"author"`
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CreatedAt string `json:"created_at"`
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UpdatedAt string `json:"updated_at"`
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}
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type CreateTradeItemRequest struct {
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TradeType string `json:"trade_type" binding:"required,oneof=sell buy"`
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Category string `json:"category" binding:"required,oneof=digital book clothing daily cosmetics sport ticket other"`
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Title string `json:"title" binding:"required,max=100"`
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Content string `json:"content"`
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Segments model.MessageSegments `json:"segments"`
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Images []string `json:"images"`
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Price *float64 `json:"price"`
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OriginalPrice *float64 `json:"original_price"`
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Condition string `json:"condition" binding:"omitempty,oneof=brand_new like_new lightly_used well_used"`
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Location string `json:"location" binding:"omitempty,max=100"`
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}
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type UpdateTradeItemRequest struct {
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TradeType *string `json:"trade_type" binding:"omitempty,oneof=sell buy"`
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Category *string `json:"category" binding:"omitempty,oneof=digital book clothing daily cosmetics sport ticket other"`
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Title *string `json:"title" binding:"omitempty,max=100"`
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Content *string `json:"content"`
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Segments model.MessageSegments `json:"segments"`
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Images []string `json:"images"`
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Price *float64 `json:"price"`
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OriginalPrice *float64 `json:"original_price"`
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Condition *string `json:"condition" binding:"omitempty,oneof=brand_new like_new lightly_used well_used"`
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Location *string `json:"location" binding:"omitempty,max=100"`
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}
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type UpdateTradeItemStatusRequest struct {
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Status string `json:"status" binding:"required,oneof=active sold bought offline"`
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}
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type TradeCursorPageResponse struct {
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Items []*TradeItemResponse `json:"list"`
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NextCursor string `json:"next_cursor,omitempty"`
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PrevCursor string `json:"prev_cursor,omitempty"`
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HasMore bool `json:"has_more"`
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}
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type TradeFavoriteResponse struct {
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Favorited bool `json:"favorited"`
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}
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