This commit is contained in:
Li1304553726 2025-02-25 13:31:01 +08:00
commit d6edf9b856
10 changed files with 602 additions and 346 deletions

View File

@ -1,10 +1,12 @@
import { Checkbox, Divider, Radio, Space , Spin} from 'antd'; import { Checkbox, Divider, Radio, Space, Spin } from "antd";
import { categories, levels } from '../mockData'; import { categories, levels } from "../mockData";
import { TaxonomySlug, TermDto } from '@nice/common'; import { TaxonomySlug, TermDto } from "@nice/common";
import { useEffect, useMemo } from 'react'; import { useEffect, useMemo } from "react";
import { api } from '@nice/client'; import { api } from "@nice/client";
import { useSearchParams } from 'react-router-dom'; import { useSearchParams } from "react-router-dom";
import TermTree from "@web/src/components/models/term/term-tree";
import TermSelect from "@web/src/components/models/term/term-select";
interface FilterSectionProps { interface FilterSectionProps {
selectedCategory: string; selectedCategory: string;
@ -19,29 +21,31 @@ interface GetTaxonomyProps {
} }
function useGetTaxonomy({ type }): GetTaxonomyProps { function useGetTaxonomy({ type }): GetTaxonomyProps {
const {data,isLoading} :{data:TermDto[],isLoading:boolean}= api.term.findMany.useQuery({ const { data, isLoading }: { data: TermDto[]; isLoading: boolean } =
api.term.findMany.useQuery({
where: { where: {
taxonomy: { taxonomy: {
//TaxonomySlug.CATEGORY //TaxonomySlug.CATEGORY
slug:type slug: type,
} },
}, },
include: { include: {
children :true children: true,
}, },
take: 10, // 只取前10个 take: 10, // 只取前10个
orderBy: { orderBy: {
createdAt: 'desc', // 按创建时间降序排列 createdAt: "desc", // 按创建时间降序排列
}, },
}) });
const categories = useMemo(() => { const categories = useMemo(() => {
const allCategories = isLoading ? [] : data?.map((course) => course.name); const allCategories = isLoading
? []
: data?.map((course) => course.name);
return [...Array.from(new Set(allCategories))]; return [...Array.from(new Set(allCategories))];
}, [data]); }, [data]);
return {categories,isLoading} return { categories, isLoading };
} }
export default function FilterSection({ export default function FilterSection({
selectedCategory, selectedCategory,
selectedLevel, selectedLevel,
@ -50,42 +54,38 @@ export default function FilterSection({
}: FilterSectionProps) { }: FilterSectionProps) {
const gateGory: GetTaxonomyProps = useGetTaxonomy({ const gateGory: GetTaxonomyProps = useGetTaxonomy({
type: TaxonomySlug.CATEGORY, type: TaxonomySlug.CATEGORY,
}) });
const levels: GetTaxonomyProps = useGetTaxonomy({ const levels: GetTaxonomyProps = useGetTaxonomy({
type: TaxonomySlug.LEVEL, type: TaxonomySlug.LEVEL,
}) });
const [searchParams,setSearchParams] = useSearchParams() const [searchParams, setSearchParams] = useSearchParams();
useEffect(() => { useEffect(() => {
if(searchParams.get('category')) onCategoryChange(searchParams.get('category')) if (searchParams.get("category"))
},[searchParams.get('category')]) onCategoryChange(searchParams.get("category"));
}, [searchParams.get("category")]);
const { data: taxonomies } = api.taxonomy.getAll.useQuery({});
return ( return (
<div className="bg-white p-6 rounded-lg shadow-sm space-y-6"> <div className="bg-white p-6 rounded-lg shadow-sm space-y-6">
<div> <Form>
<h3 className="text-lg font-medium mb-4"></h3>
<Radio.Group
value={selectedCategory}
onChange={(e) => onCategoryChange(e.target.value)}
className="flex flex-col space-y-3"
>
{
gateGory.isLoading?
(<Spin/>)
:
(
<>
<Radio value="" ></Radio>
{gateGory.categories.map(category => (
<Radio key={category} value={category}>
{category}
</Radio>
))}
</>)
}
</Radio.Group> </Form>
{taxonomies.map((tax) => {
return (
<>
<div>
<h3 className="text-lg font-medium mb-4">
{tax?.name}
</h3>
<TermSelect
multiple
taxonomyId={tax?.id}></TermSelect>
</div> </div>
</>
);
})}
<Divider className="my-6" /> <Divider className="my-6" />
@ -94,23 +94,19 @@ export default function FilterSection({
<Radio.Group <Radio.Group
value={selectedLevel} value={selectedLevel}
onChange={(e) => onLevelChange(e.target.value)} onChange={(e) => onLevelChange(e.target.value)}
className="flex flex-col space-y-3" className="flex flex-col space-y-3">
> {levels.isLoading ? (
{ <Spin />
levels.isLoading ? ) : (
(<Spin/>)
:
(
<> <>
<Radio value=""></Radio> <Radio value=""></Radio>
{levels.categories.map(level => ( {levels.categories.map((level) => (
<Radio key={level} value={level}> <Radio key={level} value={level}>
{level} {level}
</Radio> </Radio>
))} ))}
</>) </>
} )}
</Radio.Group> </Radio.Group>
</div> </div>
</div> </div>

View File

@ -3,70 +3,116 @@ import { mockCourses } from "./mockData";
import FilterSection from "./components/FilterSection"; import FilterSection from "./components/FilterSection";
import CourseList from "./components/CourseList"; import CourseList from "./components/CourseList";
import { api } from "@nice/client"; import { api } from "@nice/client";
import { courseDetailSelect, CourseDto, LectureType, PostType } from "@nice/common"; import {
courseDetailSelect,
CourseDto,
LectureType,
PostType,
} from "@nice/common";
import { useSearchParams } from "react-router-dom"; import { useSearchParams } from "react-router-dom";
import { set } from "idb-keyval"; import { set } from "idb-keyval";
interface paginationData {
items:CourseDto[],
totalPages:number
}
export default function CoursesPage() { export default function CoursesPage() {
const [currentPage, setCurrentPage] = useState(1); const [currentPage, setCurrentPage] = useState(1);
const [selectedCategory, setSelectedCategory] = useState(""); const [selectedCategory, setSelectedCategory] = useState("");
const [selectedLevel, setSelectedLevel] = useState(""); const [selectedLevel, setSelectedLevel] = useState("");
const pageSize = 9; const pageSize = 12;
const [isAll,setIsAll] = useState(true) const [isAll,setIsAll] = useState(true)
const [searchParams, setSearchParams] = useSearchParams(); const [searchParams, setSearchParams] = useSearchParams();
let coursesData = []
let isCourseLoading = false const [coursesData, setCoursesData] = useState<CourseDto[]>([]);
if(!searchParams.get('searchValue')){ const [isCourseLoading, setIsCourseLoading] = useState(false);
console.log('no category') const [totalPagesNum, setTotalPagesNum] = useState(0);
const {data,isLoading} = api.post.findManyWithPagination.useQuery({
if(!searchParams.get('searchValue') && !searchParams.get('searchValue')){
const {data,isLoading} :{ data:paginationData,isLoading:boolean} = api.post.findManyWithPagination.useQuery({
where: { where: {
type: PostType.COURSE, type: PostType.COURSE,
terms:isAll?{}:{ terms: isAll
? {}
: {
some: { some: {
OR: [ OR: [
selectedCategory?{name:selectedCategory}:{}, selectedCategory
selectedLevel?{name:selectedLevel}:{} ? { name: selectedCategory }
: {},
selectedLevel
? { name: selectedLevel }
: {},
], ],
}, },
}, },
}, },
select:courseDetailSelect pageSize,
page:currentPage,
select:courseDetailSelect,
}); });
coursesData = data?.items console.log(data)
isCourseLoading = isLoading useEffect(()=>{
console.log(currentPage);
setIsCourseLoading(isLoading)
setCoursesData(data?.items)
setTotalPagesNum(data?.totalPages)
},[currentPage,data])
}else{ }else{
console.log('searchValue:'+searchParams.get('searchValue')) console.log('searchValue:'+searchParams.get('searchValue'))
const searchValue = searchParams.get('searchValue') const searchValue = searchParams.get('searchValue')
const {data,isLoading} = api.post.findManyWithPagination.useQuery({ const {data,isLoading} :{ data:paginationData,isLoading:boolean}= api.post.findManyWithPagination.useQuery({
where: { where: {
type: PostType.COURSE, type: PostType.COURSE,
OR: [ OR: [
{ title: { contains: searchValue, mode: 'insensitive' } }, { title: { contains: searchValue, mode: "insensitive" } },
{ subTitle: { contains: searchValue, mode: 'insensitive' } }, {
{ content: { contains: searchValue, mode: 'insensitive' } }, subTitle: {
{ terms: { some: { name: { contains: searchValue, mode: 'insensitive' } } } } contains: searchValue,
] mode: "insensitive",
}, },
select:courseDetailSelect },
{ content: { contains: searchValue, mode: "insensitive" } },
{
terms: {
some: {
name: {
contains: searchValue,
mode: "insensitive",
},
},
},
},
],
},
select:courseDetailSelect,
pageSize,
page:currentPage,
}) })
coursesData = data?.items useEffect(()=>{
isCourseLoading = isLoading setIsCourseLoading(isLoading)
setCoursesData(data?.items)
setTotalPagesNum(data?.totalPages)
},[currentPage])
} }
useEffect(() => { useEffect(() => {
if(searchParams.get('searchValue')==''){ if (searchParams.get("searchValue") == "") {
setSelectedCategory(''); setSelectedCategory("");
setSelectedLevel('') setSelectedLevel("");
} }
}, [searchParams.get('searchValue')]); }, [searchParams.get("searchValue")]);
const filteredCourses = useMemo(() => { const filteredCourses = useMemo(() => {
return isCourseLoading ? [] : coursesData; return isCourseLoading ? [] : coursesData;
}, [isCourseLoading, coursesData, selectedCategory, selectedLevel]); }, [isCourseLoading, coursesData, selectedCategory, selectedLevel]);
const paginatedCourses: CourseDto[] = useMemo(() => { const paginatedCourses: CourseDto[] = useMemo(() => {
const startIndex = (currentPage - 1) * pageSize; const startIndex = (currentPage - 1) * pageSize;
return isCourseLoading ? [] : (filteredCourses.slice(startIndex, startIndex + pageSize) as any as CourseDto[]); return isCourseLoading
? []
: (filteredCourses.slice(
startIndex,
startIndex + pageSize
) as any as CourseDto[]);
}, [filteredCourses, currentPage]); }, [filteredCourses, currentPage]);
const handlePageChange = (page: number) => { const handlePageChange = (page: number) => {
@ -74,9 +120,8 @@ export default function CoursesPage() {
window.scrollTo({ top: 0, behavior: "smooth" }); window.scrollTo({ top: 0, behavior: "smooth" });
}; };
useEffect(() => { useEffect(() => {
setCurrentPage(1) setCurrentPage(1);
},[]) }, []);
return ( return (
<div className="min-h-screen bg-gray-50"> <div className="min-h-screen bg-gray-50">
@ -93,13 +138,19 @@ export default function CoursesPage() {
setSelectedCategory(category); setSelectedCategory(category);
setCurrentPage(1); setCurrentPage(1);
setIsAll(!category) setIsAll(!category)
setSearchParams({ searchValue: ''}); setSearchParams(prev => {
prev.delete('searchValue');
return prev;
});
}} }}
onLevelChange={(level) => { onLevelChange={(level) => {
setSelectedLevel(level); setSelectedLevel(level);
setCurrentPage(1); setCurrentPage(1);
setIsAll(!level) setIsAll(!level)
setSearchParams({ searchValue: ''}); setSearchParams(prev => {
prev.delete('searchValue');
return prev;
});
}} }}
/> />
</div> </div>
@ -110,12 +161,12 @@ export default function CoursesPage() {
<div className="bg-white p-6 rounded-lg shadow-sm"> <div className="bg-white p-6 rounded-lg shadow-sm">
<div className="flex justify-between items-center mb-6"> <div className="flex justify-between items-center mb-6">
<span className="text-gray-600"> <span className="text-gray-600">
{filteredCourses.length} {totalPagesNum * pageSize || 0}
</span> </span>
</div> </div>
<CourseList <CourseList
courses={paginatedCourses} courses={paginatedCourses}
total={filteredCourses.length} total={totalPagesNum * pageSize}
pageSize={pageSize} pageSize={pageSize}
currentPage={currentPage} currentPage={currentPage}
onPageChange={handlePageChange} onPageChange={handlePageChange}

View File

@ -3,7 +3,7 @@ import { Typography, Button, Spin } from 'antd';
import { stringToColor, TaxonomySlug, TermDto } from '@nice/common'; import { stringToColor, TaxonomySlug, TermDto } from '@nice/common';
import { api,} from '@nice/client'; import { api,} from '@nice/client';
import { ControlOutlined } from '@ant-design/icons'; import { ControlOutlined } from '@ant-design/icons';
import { useNavigate } from 'react-router-dom'; import { useNavigate, useSearchParams } from 'react-router-dom';
const { Title, Text } = Typography; const { Title, Text } = Typography;
@ -124,6 +124,7 @@ const CategorySection = () => {
onClick={()=>{ onClick={()=>{
console.log(category.name) console.log(category.name)
navigate(`/courses?category=${category.name}`) navigate(`/courses?category=${category.name}`)
window.scrollTo({ top: 0, behavior: 'smooth' })
}} }}
> >
<div className="absolute -inset-0.5 bg-gradient-to-r from-gray-200 to-gray-300 opacity-50 rounded-2xl transition-all duration-700 group-hover:opacity-75" /> <div className="absolute -inset-0.5 bg-gradient-to-r from-gray-200 to-gray-300 opacity-50 rounded-2xl transition-all duration-700 group-hover:opacity-75" />

View File

@ -48,12 +48,11 @@ const carouselItems: CarouselItem[] = [
const HeroSection = () => { const HeroSection = () => {
const carouselRef = useRef<CarouselRef>(null); const carouselRef = useRef<CarouselRef>(null);
const { statistics, baseSetting } = useAppConfig(); const { statistics, baseSetting } = useAppConfig();
const platformStats: PlatformStat[] = [ const platformStats: PlatformStat[] = [
{ icon: <TeamOutlined />, value: "50,000+", label: "注册学员" }, { icon: <TeamOutlined />, value: statistics.staffs.toString(), label: "注册学员" },
{ icon: <BookOutlined />, value: "1,000+", label: "精品课程" }, { icon: <StarOutlined />, value: statistics.courses.toString(), label: "精品课程" },
// { icon: <StarOutlined />, value: '98%', label: '好评度' }, { icon: <BookOutlined />, value: statistics.lectures.toString(), label: '课程章节' },
{ icon: <EyeOutlined />, value: "4552", label: "观看次数" }, { icon: <EyeOutlined />, value: statistics.reads.toString(), label: "观看次数" },
]; ];
const handlePrev = useCallback(() => { const handlePrev = useCallback(() => {
carouselRef.current?.prev(); carouselRef.current?.prev();
@ -119,8 +118,8 @@ const HeroSection = () => {
</div> </div>
{/* Stats Container */} {/* Stats Container */}
<div className="absolute -bottom-24 left-1/2 -translate-x-1/2 w-1/2 max-w-6xl px-4"> <div className="absolute -bottom-20 left-1/2 -translate-x-1/2 w-2/3 max-w-6xl px-4">
<div className="rounded-2xl grid grid-cols-2 md:grid-cols-3 gap-4 md:gap-8 p-6 md:p-8 bg-white border shadow-xl hover:shadow-2xl transition-shadow duration-500 will-change-[transform,box-shadow]"> <div className="rounded-2xl grid grid-cols-2 md:grid-cols-4 gap-4 md:gap-8 p-6 md:p-8 bg-white border shadow-xl hover:shadow-2xl transition-shadow duration-500 will-change-[transform,box-shadow]">
{platformStats.map((stat, index) => ( {platformStats.map((stat, index) => (
<div <div
key={index} key={index}

View File

@ -1,9 +1,10 @@
import HeroSection from './components/HeroSection'; import HeroSection from "./components/HeroSection";
import CategorySection from './components/CategorySection'; import CategorySection from "./components/CategorySection";
import CoursesSection from './components/CoursesSection'; import CoursesSection from "./components/CoursesSection";
import FeaturedTeachersSection from './components/FeaturedTeachersSection'; import FeaturedTeachersSection from "./components/FeaturedTeachersSection";
import { api } from '@nice/client'; import { api } from "@nice/client";
import { useEffect, useState } from 'react'; import { useEffect, useState } from "react";
import TermTree from "@web/src/components/models/term/term-tree";
interface Courses { interface Courses {
id: number; id: number;
title: string; title: string;
@ -17,7 +18,6 @@ interface Courses{
thumbnail: string; thumbnail: string;
} }
const HomePage = () => { const HomePage = () => {
// const mockCourses = [
// { // {
// id: 1, // id: 1,
// title: 'Python 零基础入门', // title: 'Python 零基础入门',
@ -115,25 +115,29 @@ const HomePage = () => {
// thumbnail: '/images/course8.jpg', // thumbnail: '/images/course8.jpg',
// }, // },
// ]; // ];
const { data ,isLoading}: { data: Courses[] , isLoading:boolean} = api.post.findMany.useQuery({ const { data, isLoading }: { data: Courses[]; isLoading: boolean } =
api.post.findMany.useQuery({
where: {}, where: {},
include: { include: {
instructors: true, instructors: true,
}, },
orderBy: { orderBy: {
createdAt: 'desc' // 按创建时间降序排列 createdAt: "desc", // 按创建时间降序排列
}, },
take: 8 // 只获取前8个课程 take: 8, // 只获取前8个课程
}); });
useEffect(() => { useEffect(() => {
if (data) { if (data) {
console.log('Courses data:', data); console.log("mockCourses data:", data);
} }
}, [data]); }, [data]);
// 数据处理逻辑
// 修正依赖数组
return ( return (
<div className="min-h-screen"> <div className="min-h-screen">
<HeroSection /> <HeroSection />
<CoursesSection <CoursesSection
title="推荐课程" title="推荐课程"
description="最受欢迎的精品课程,助你快速成长" description="最受欢迎的精品课程,助你快速成长"

View File

@ -2,7 +2,7 @@ import { useState } from "react";
import { Input, Layout, Avatar, Button, Dropdown } from "antd"; import { Input, Layout, Avatar, Button, Dropdown } from "antd";
import { EditFilled, SearchOutlined, UserOutlined } from "@ant-design/icons"; import { EditFilled, SearchOutlined, UserOutlined } from "@ant-design/icons";
import { useAuth } from "@web/src/providers/auth-provider"; import { useAuth } from "@web/src/providers/auth-provider";
import { useNavigate } from "react-router-dom"; import { useNavigate, useSearchParams } from "react-router-dom";
import { UserMenu } from "./UserMenu/UserMenu"; import { UserMenu } from "./UserMenu/UserMenu";
import { NavigationMenu } from "./NavigationMenu"; import { NavigationMenu } from "./NavigationMenu";
@ -12,6 +12,7 @@ export function MainHeader() {
const [searchValue, setSearchValue] = useState(""); const [searchValue, setSearchValue] = useState("");
const { isAuthenticated, user } = useAuth(); const { isAuthenticated, user } = useAuth();
const navigate = useNavigate(); const navigate = useNavigate();
const [searchParams,setSearchParams] = useSearchParams();
return ( return (
<Header className="select-none flex items-center justify-center bg-white shadow-md border-b border-gray-100 fixed w-full z-30"> <Header className="select-none flex items-center justify-center bg-white shadow-md border-b border-gray-100 fixed w-full z-30">
@ -37,7 +38,11 @@ export function MainHeader() {
onChange={(e) => setSearchValue(e.target.value)} onChange={(e) => setSearchValue(e.target.value)}
onPressEnter={(e) => { onPressEnter={(e) => {
//console.log(e) //console.log(e)
setSearchValue(""); //setSearchValue("");
setSearchParams((prev)=>{
if(searchParams.get("category")) prev.delete("category")
return prev
})
navigate( navigate(
`/courses/?searchValue=${searchValue}` `/courses/?searchValue=${searchValue}`
); );

View File

@ -23,7 +23,7 @@ export default function TermSelect({
value, value,
onChange, onChange,
className, className,
placeholder = "选择单位", placeholder = "选择分类",
multiple = false, multiple = false,
taxonomyId, taxonomyId,
domainId, domainId,

View File

@ -0,0 +1,199 @@
import React, { useEffect, useState, useCallback } from "react";
import { Tree } from "antd";
import type { DataNode, TreeProps } from "antd/es/tree";
import { getUniqueItems } from "@nice/common";
import { api } from "@nice/client";
interface TermData {
value?: string;
children?: TermData[];
key?: string;
hasChildren?: boolean;
isLeaf?: boolean;
pId?: string;
title?: React.ReactNode;
data?: any;
order?: string;
id?: string;
}
interface TermTreeProps {
defaultValue?: string | string[];
value?: string | string[];
onChange?: (value: string | string[]) => void;
multiple?: boolean;
taxonomyId?: string;
disabled?: boolean;
className?: string;
domainId?: string;
style?: React.CSSProperties;
}
const TermTree: React.FC<TermTreeProps> = ({
defaultValue,
value,
onChange,
className,
multiple = false,
taxonomyId,
domainId,
disabled = false,
style,
}) => {
const utils = api.useUtils();
const [treeData, setTreeData] = useState<TermData[]>([]);
const processTermData = (terms: TermData[]): TermData[] => {
return terms.map((term) => ({
...term,
key: term.key || term.id || "",
title: term.title || term.value,
children: term.children
? processTermData(term.children)
: undefined,
}));
};
const fetchParentTerms = useCallback(
async (termIds: string | string[], taxonomyId?: string) => {
const idsArray = Array.isArray(termIds)
? termIds
: [termIds].filter(Boolean);
try {
const result = await utils.term.getParentSimpleTree.fetch({
termIds: idsArray,
taxonomyId,
domainId,
});
return processTermData(result);
} catch (error) {
console.error(
"Error fetching parent terms for termIds",
idsArray,
":",
error
);
throw error;
}
},
[utils, domainId]
);
const fetchTerms = useCallback(async () => {
try {
const rootTerms = await utils.term.getChildSimpleTree.fetch({
taxonomyId,
domainId,
});
let combinedTerms = processTermData(rootTerms);
if (defaultValue) {
const defaultTerms = await fetchParentTerms(
defaultValue,
taxonomyId
);
combinedTerms = getUniqueItems(
[...treeData, ...combinedTerms, ...defaultTerms],
"key"
);
}
if (value) {
const valueTerms = await fetchParentTerms(value, taxonomyId);
combinedTerms = getUniqueItems(
[...treeData, ...combinedTerms, ...valueTerms],
"key"
);
}
setTreeData(combinedTerms);
} catch (error) {
console.error("Error fetching terms:", error);
}
}, [
defaultValue,
value,
taxonomyId,
utils,
fetchParentTerms,
domainId,
treeData,
]);
useEffect(() => {
fetchTerms();
}, [fetchTerms]);
const onLoadData = async ({ key }: any) => {
try {
const result = await utils.term.getChildSimpleTree.fetch({
termIds: [key],
taxonomyId,
domainId,
});
const processedResult = processTermData(result);
const newItems = getUniqueItems(
[...treeData, ...processedResult],
"key"
);
setTreeData(newItems);
} catch (error) {
console.error(
"Error loading data for node with key",
key,
":",
error
);
}
};
const handleCheck: TreeProps["onCheck"] = (checkedKeys, info) => {
if (onChange) {
if (multiple) {
onChange(checkedKeys as string[]);
} else {
onChange((checkedKeys as string[])[0] || "");
}
}
};
const handleExpand = async (expandedKeys: React.Key[]) => {
try {
const allKeyIds = expandedKeys
.map((key) => key.toString())
.filter(Boolean);
const expandedNodes = await utils.term.getChildSimpleTree.fetch({
termIds: allKeyIds,
taxonomyId,
domainId,
});
const processedNodes = processTermData(expandedNodes);
const newItems = getUniqueItems(
[...treeData, ...processedNodes],
"key"
);
setTreeData(newItems);
} catch (error) {
console.error(
"Error expanding nodes with keys",
expandedKeys,
":",
error
);
}
};
return (
<Tree
checkable={multiple}
disabled={disabled}
className={className}
style={style}
treeData={treeData as DataNode[]}
checkedKeys={Array.isArray(value) ? value : value ? [value] : []}
onCheck={handleCheck}
loadData={onLoadData}
onExpand={handleExpand}
/>
);
};
export default TermTree;

View File

@ -1,4 +1,5 @@
import { TreeDataNode } from "@nice/common" import { TreeDataNode } from "@nice/common";
import React from "react";
export const treeVisitor = ( export const treeVisitor = (
data: TreeDataNode[], data: TreeDataNode[],
key: React.Key, key: React.Key,