labmem
ab83ad96b4
- 使用 Squirrel 与 sqlx 实现分类查询 - 集中组装依赖并向 handler 注入 model 接口 - 显式转换分类响应 DTO，统一空列表输出 - 补充路由与 handler 测试，同步架构文档 BREAKING CHANGE: 将 GET /hello 替换为 GET /test，响应由问候字符串改为分类列表
44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
package handler
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import (
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"lyra/internal/api"
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"lyra/internal/httpx"
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"lyra/internal/model"
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"net/http"
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"github.com/gin-gonic/gin"
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)
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type TestHandler struct {
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categoryModel model.CategoryModel
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}
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func NewTestHandler(categoryModel model.CategoryModel) *TestHandler {
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return &TestHandler{categoryModel: categoryModel}
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}
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func (h *TestHandler) Hello() gin.HandlerFunc {
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return func(c *gin.Context) {
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categories, err := h.categoryModel.FindAll(c.Request.Context())
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if err != nil {
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httpx.Fail(c, http.StatusInternalServerError, api.CodeInternalError, "获取分类列表失败")
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return
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}
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httpx.OK(c, toCategoryResponses(categories))
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}
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}
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// toCategoryResponses 显式把内部模型转换为响应 DTO；make 保证空结果输出 data:[] 而非 null。
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func toCategoryResponses(categories []*model.Category) []api.CategoryResponse {
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responses := make([]api.CategoryResponse, 0, len(categories))
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for _, category := range categories {
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responses = append(responses, api.CategoryResponse{
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ID: category.ID,
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Slug: category.Slug,
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Title: category.Title,
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Sort: category.Sort,
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})
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}
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return responses
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}
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