fix(User Management): The variable value is a date, not a range. After selecting a date value, it is necessary to verify whether this value is within the date range set for the variable.

frontend/src/i18n/en.json

@@ -8,6 +8,7 @@
     "Details": "Details"
   },
   "variables": {
+    "please_select_date": "Please select a date",
     "number_variable_error": "Please enter the correct numerical range.",
     "built_in": "Built-in",
     "normal_value": "Normal value",

frontend/src/i18n/ko-KR.json

@@ -24,6 +24,7 @@
     "return_to_view": "화면으로 돌아가기"
   },
   "variables": {
+    "please_select_date": "날짜를 선택하십시오",
     "number_variable_error": "올바른 숫자 범위를 입력하십시오.",
     "built_in": "내장형",
     "normal_value": "정상값",
@@ -944,4 +945,4 @@
     "to_doc": "API 보기",
     "trigger_limit": "최대 {0}개의 API 키 생성 지원"
   }
-}
+}

frontend/src/i18n/zh-CN.json

@@ -24,6 +24,7 @@
     "return_to_view": "返回查看"
   },
   "variables": {
+    "please_select_date": "请选择日期",
     "number_variable_error": "请输入正确的数值范围",
     "built_in": "已内置",
     "normal_value": "常规值",

frontend/src/views/system/user/User.vue

@@ -452,12 +452,10 @@
             <el-date-picker
               v-else
               v-model="state.form.system_variables[index].variableValues"
-              type="daterange"
-              style="max-width: 236px"
+              type="date"
+              style="width: 236px"
               value-format="YYYY-MM-DD"
-              range-separator=""
-              :start-placeholder="$t('variables.start_date')"
-              :end-placeholder="$t('variables.end_date')"
+              :placeholder="$t('variables.please_select_date')"
             />
             <el-tooltip
               :offset="14"
@@ -1099,12 +1097,9 @@ const validateSystemVariables = () => {
 
       if (obj.var_type === 'datetime') {
         const [min, max] = obj.value
-        const [minVal, maxVal] = ele.variableValues
         if (
-          +new Date(minVal) > +new Date(max) ||
-          +new Date(maxVal) < +new Date(min) ||
-          +new Date(maxVal) > +new Date(max) ||
-          +new Date(minVal) < +new Date(min)
+          +new Date(ele.variableValues) > +new Date(max) ||
+          +new Date(ele.variableValues) < +new Date(min)
         ) {
           ElMessage.error(
             t('variables.1_to_100_de', {