105 lines
2.8 KiB
Go
105 lines
2.8 KiB
Go
package handlers
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import (
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"net/http"
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"strconv"
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"sale/internal/models"
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"sale/internal/schemas"
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"sale/internal/utils"
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"github.com/gin-gonic/gin"
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)
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type PurchaseGroupHandler struct{}
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func NewPurchaseGroupHandler() *PurchaseGroupHandler {
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return &PurchaseGroupHandler{}
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}
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func (h *PurchaseGroupHandler) List(c *gin.Context) {
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var groups []models.PurchaseGroup
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utils.DB.Order("sort_order ASC, id ASC").Preload("Categories").Find(&groups)
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c.JSON(http.StatusOK, gin.H{"data": groups})
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}
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func (h *PurchaseGroupHandler) Create(c *gin.Context) {
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var req schemas.CreatePurchaseGroupRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
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return
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}
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var existing models.PurchaseGroup
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if err := utils.DB.Where("name = ?", req.Name).First(&existing).Error; err == nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "分组名称已存在"})
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return
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}
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group := models.PurchaseGroup{
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Name: req.Name,
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Description: req.Description,
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SortOrder: req.SortOrder,
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}
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if err := utils.DB.Create(&group).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to create purchase group"})
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return
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}
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c.JSON(http.StatusCreated, gin.H{"data": group})
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}
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func (h *PurchaseGroupHandler) Update(c *gin.Context) {
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id, _ := strconv.Atoi(c.Param("id"))
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var group models.PurchaseGroup
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if err := utils.DB.First(&group, id).Error; err != nil {
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c.JSON(http.StatusNotFound, gin.H{"error": "Purchase group not found"})
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return
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}
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var req schemas.UpdatePurchaseGroupRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
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return
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}
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if req.Name != nil && *req.Name != group.Name {
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var existing models.PurchaseGroup
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if err := utils.DB.Where("name = ? AND id != ?", *req.Name, id).First(&existing).Error; err == nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "分组名称已存在"})
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return
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}
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}
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updates := make(map[string]interface{})
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if req.Name != nil {
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updates["name"] = *req.Name
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}
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if req.Description != nil {
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updates["description"] = *req.Description
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}
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if req.SortOrder != nil {
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updates["sort_order"] = *req.SortOrder
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}
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utils.DB.Model(&group).Updates(updates)
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c.JSON(http.StatusOK, gin.H{"data": group})
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}
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func (h *PurchaseGroupHandler) Delete(c *gin.Context) {
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id, _ := strconv.Atoi(c.Param("id"))
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var categoryCount int64
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utils.DB.Model(&models.Category{}).Where("purchase_group_id = ?", id).Count(&categoryCount)
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if categoryCount > 0 {
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c.JSON(http.StatusBadRequest, gin.H{"error": "该分组下有分类，无法删除"})
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return
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}
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if err := utils.DB.Delete(&models.PurchaseGroup{}, id).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to delete purchase group"})
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return
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}
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c.JSON(http.StatusOK, gin.H{"message": "Purchase group deleted successfully"})
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} |