feature:表格导出支持配置limit order和where条件 (#1665)

* feature:导出功能可携带条件

* feature:组件增加导出入参

* 带条件导出Excel功能

server/api/v1/system/sys_export_template.go

@@ -191,11 +191,12 @@ func (sysExportTemplateApi *SysExportTemplateApi) GetSysExportTemplateList(c *gi
 // @Router /sysExportTemplate/exportExcel [get]
 func (sysExportTemplateApi *SysExportTemplateApi) ExportExcel(c *gin.Context) {
 	templateID := c.Query("templateID")
+	queryParams := c.Request.URL.Query()
 	if templateID == "" {
 		response.FailWithMessage("模板ID不能为空", c)
 		return
 	}
-	if file, name, err := sysExportTemplateService.ExportExcel(templateID); err != nil {
+	if file, name, err := sysExportTemplateService.ExportExcel(templateID, queryParams); err != nil {
 		global.GVA_LOG.Error("获取失败!", zap.Error(err))
 		response.FailWithMessage("获取失败", c)
 	} else {

server/initialize/gorm.go

@@ -46,6 +46,7 @@ func RegisterTables() {
 		system.SysAuthorityBtn{},
 		system.SysAutoCode{},
 		system.SysExportTemplate{},
+		system.Condition{},
 
 		example.ExaFile{},
 		example.ExaCustomer{},

server/model/system/sys_export_template.go

@@ -8,8 +8,23 @@ import (
 // 导出模板 结构体  SysExportTemplate
 type SysExportTemplate struct {
 	global.GVA_MODEL
-	Name         string `json:"name" form:"name" gorm:"column:name;comment:模板名称;"`                       //模板名称
-	TableName    string `json:"tableName" form:"tableName" gorm:"column:table_name;comment:表名称;"`        //表名称
-	TemplateID   string `json:"templateID" form:"templateID" gorm:"column:template_id;comment:模板标识;"`    //模板标识
-	TemplateInfo string `json:"templateInfo" form:"templateInfo" gorm:"column:template_info;type:text;"` //模板信息
+	Name         string      `json:"name" form:"name" gorm:"column:name;comment:模板名称;"`                       //模板名称
+	TableName    string      `json:"tableName" form:"tableName" gorm:"column:table_name;comment:表名称;"`        //表名称
+	TemplateID   string      `json:"templateID" form:"templateID" gorm:"column:template_id;comment:模板标识;"`    //模板标识
+	TemplateInfo string      `json:"templateInfo" form:"templateInfo" gorm:"column:template_info;type:text;"` //模板信息
+	Limit        int         `json:"limit" form:"limit" gorm:"column:limit;comment:导出限制"`
+	Order        string      `json:"order" form:"order" gorm:"column:order;comment:排序"`
+	Conditions   []Condition `json:"conditions" form:"conditions" gorm:"foreignKey:TemplateID;references:TemplateID;comment:条件"`
+}
+
+type Condition struct {
+	global.GVA_MODEL
+	TemplateID string `json:"templateID" form:"templateID" gorm:"column:template_id;comment:模板标识"`
+	From       string `json:"from" form:"from" gorm:"column:from;comment:条件取的key"`
+	Column     string `json:"column" form:"column" gorm:"column:column;comment:作为查询条件的字段"`
+	Operator   string `json:"operator" form:"operator" gorm:"column:operator;comment:操作符"`
+}
+
+func (Condition) TableName() string {
+	return "sys_export_template_condition"
 }

server/service/system/sys_export_template.go

@@ -11,6 +11,7 @@ import (
 	"github.com/xuri/excelize/v2"
 	"gorm.io/gorm"
 	"mime/multipart"
+	"net/url"
 	"strings"
 )
 
@@ -41,14 +42,31 @@ func (sysExportTemplateService *SysExportTemplateService) DeleteSysExportTemplat
 // UpdateSysExportTemplate 更新导出模板记录
 // Author [piexlmax](https://github.com/piexlmax)
 func (sysExportTemplateService *SysExportTemplateService) UpdateSysExportTemplate(sysExportTemplate system.SysExportTemplate) (err error) {
-	err = global.GVA_DB.Save(&sysExportTemplate).Error
-	return err
+	return global.GVA_DB.Transaction(func(tx *gorm.DB) error {
+		conditions := sysExportTemplate.Conditions
+		e := tx.Delete(&[]system.Condition{}, "template_id = ?", sysExportTemplate.TemplateID).Error
+		if e != nil {
+			return e
+		}
+		sysExportTemplate.Conditions = nil
+		e = tx.Updates(&sysExportTemplate).Error
+		if e != nil {
+			return e
+		}
+		if len(conditions) > 0 {
+			for i := range conditions {
+				conditions[i].ID = 0
+			}
+			e = tx.Create(&conditions).Error
+		}
+		return e
+	})
 }
 
 // GetSysExportTemplate 根据id获取导出模板记录
 // Author [piexlmax](https://github.com/piexlmax)
 func (sysExportTemplateService *SysExportTemplateService) GetSysExportTemplate(id uint) (sysExportTemplate system.SysExportTemplate, err error) {
-	err = global.GVA_DB.Where("id = ?", id).First(&sysExportTemplate).Error
+	err = global.GVA_DB.Where("id = ?", id).Preload("Conditions").First(&sysExportTemplate).Error
 	return
 }
 
@@ -88,9 +106,9 @@ func (sysExportTemplateService *SysExportTemplateService) GetSysExportTemplateIn
 
 // ExportExcel 导出Excel
 // Author [piexlmax](https://github.com/piexlmax)
-func (sysExportTemplateService *SysExportTemplateService) ExportExcel(templateID string) (file *bytes.Buffer, name string, err error) {
+func (sysExportTemplateService *SysExportTemplateService) ExportExcel(templateID string, values url.Values) (file *bytes.Buffer, name string, err error) {
 	var template system.SysExportTemplate
-	err = global.GVA_DB.First(&template, "template_id = ?", templateID).Error
+	err = global.GVA_DB.Preload("Conditions").First(&template, "template_id = ?", templateID).Error
 	if err != nil {
 		return nil, "", err
 	}
@@ -119,7 +137,27 @@ func (sysExportTemplateService *SysExportTemplateService) ExportExcel(templateID
 	}
 	selects := strings.Join(columns, ", ")
 	var tableMap []map[string]interface{}
-	err = global.GVA_DB.Select(selects).Table(template.TableName).Find(&tableMap).Error
+	db := global.GVA_DB.Select(selects).Table(template.TableName)
+
+	if len(template.Conditions) > 0 {
+		for _, condition := range template.Conditions {
+			sql := fmt.Sprintf("%s %s ?", condition.Column, condition.Operator)
+			value := values.Get(condition.From)
+			if value != "" {
+				if condition.Operator == "LIKE" {
+					value = "%" + value + "%"
+				}
+				db = db.Where(sql, value)
+			}
+		}
+	}
+	if template.Limit != 0 {
+		db = db.Limit(template.Limit)
+	}
+	if template.Order != "" {
+		db = db.Order(template.Order)
+	}
+	err = db.Find(&tableMap).Error
 	if err != nil {
 		return nil, "", err
 	}