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本节指标
- portainer 容器管理工具
- 数据库设计过程
- 数据库设计指标、标准、习惯
- graphql 条件查问、排序
- flutter 代码实现
视频
https://www.bilibili.com/vide…
代码
https://github.com/ducafecat/…
strapi 运行环境网盘下载
- 网盘
链接:https://pan.baidu.com/s/13Ujy…
明码:yu82
- 文件
名称 | 阐明 |
---|---|
strapi-docker-compose-00.zip | 洁净环境,已装置 graphql 插件 |
strapi-docker-compose-15.zip | 15 课内容 |
- 运行
须要用 docker-compose 启动
账号 admin
明码 123456
# 启动
docker-compose up -d --remove-orphans
# 敞开
docker-compose down
工具
- https://www.portainer.io
- https://www.draw.io
- https://app.quicktype.io
注释
装置 portainer
- https://www.portainer.io
docker run -d -p 9000:9000 \
--restart=always \
-v /var/run/docker.sock:/var/run/docker.sock \
--name portainer-local \
portainer/portainer
设计数据模型
- https://www.draw.io
- 规范数据库设计
ER 图 -> 设计范式 -> 数据库物理表
- ER
- 范式
https://zh.wikipedia.org/wiki…
- 设计规范 表前缀
sys* 零碎、用户、权限
dict* 字典表
bus_ 业务
- 设计数据 对象、属性、关系
创立 strapi 数据类型
- 创立外键表 新闻分类
- 创立外键表 新闻频道
- 创立业务表 新闻内容
- 创立链接外键 新闻内容、分类、频道
编写 graphql 查问
- 新闻
query News($category_code: String) {busNews(where: { dict_categories: { code: $category_code} }) {
title
dict_channel {
code
title
icon {url}
}
dict_categories {
code
title
}
author
url
addtime
thumbnail {url}
}
}
- 首页
query pageIndex {
# 分类
dictCategories(sort: "sortNum:desc") {
code
title
}
# 频道
dictChannels(sort: "sortNum:desc") {
code
title
icon {url}
}
# 热点
busNews(where: { dict_categories: { code: "news_hot"} }) {
title
dict_channel {
code
title
icon {url}
}
dict_categories {
code
title
}
author
url
addtime
thumbnail {url}
}
}
编写 flutter 代码
- 实例 entity
lib/common/entitys/gql_news.dart
// 首页
class GqlIndexResponseEntity {
GqlIndexResponseEntity({
this.dictCategories,
this.dictChannels,
this.busNews,
});
List<DictCategoryEntity> dictCategories;
List<DictChannelEntity> dictChannels;
List<GqlNewsResponseEntity> busNews;
factory GqlIndexResponseEntity.fromJson(Map<String, dynamic> json) =>
GqlIndexResponseEntity(
dictCategories: List<DictCategoryEntity>.from(json["dictCategories"].map((x) => DictCategoryEntity.fromJson(x))),
dictChannels: List<DictChannelEntity>.from(json["dictChannels"].map((x) => DictChannelEntity.fromJson(x))),
busNews: List<GqlNewsResponseEntity>.from(json["busNews"].map((x) => GqlNewsResponseEntity.fromJson(x))),
);
Map<String, dynamic> toJson() => {
"dictCategories":
List<dynamic>.from(dictCategories.map((x) => x.toJson())),
"dictChannels": List<dynamic>.from(dictChannels.map((x) => x.toJson())),
"busNews": List<dynamic>.from(busNews.map((x) => x.toJson())),
};
}
// 新闻
class GqlNewsResponseEntity {
GqlNewsResponseEntity({
this.title,
this.dictChannel,
this.dictCategories,
this.author,
this.url,
this.addtime,
this.thumbnail,
});
String title;
DictChannelEntity dictChannel;
List<DictCategoryEntity> dictCategories;
String author;
String url;
DateTime addtime;
ThumbnailEntity thumbnail;
factory GqlNewsResponseEntity.fromJson(Map<String, dynamic> json) =>
GqlNewsResponseEntity(title: json["title"],
dictChannel: DictChannelEntity.fromJson(json["dict_channel"]),
dictCategories: List<DictCategoryEntity>.from(json["dict_categories"].map((x) => DictCategoryEntity.fromJson(x))),
author: json["author"],
url: json["url"],
addtime: DateTime.parse(json["addtime"]),
thumbnail: ThumbnailEntity.fromJson(json["thumbnail"]),
);
Map<String, dynamic> toJson() => {
"title": title,
"dict_channel": dictChannel.toJson(),
"dict_categories":
List<dynamic>.from(dictCategories.map((x) => x.toJson())),
"author": author,
"url": url,
"addtime":
"${addtime.year.toString().padLeft(4,'0')}-${addtime.month.toString().padLeft(2,'0')}-${addtime.day.toString().padLeft(2,'0')}",
"ThumbnailEntity": thumbnail.toJson(),};
}
// 分类
class DictCategoryEntity {
DictCategoryEntity({
this.code,
this.title,
});
String code;
String title;
factory DictCategoryEntity.fromJson(Map<String, dynamic> json) =>
DictCategoryEntity(code: json["code"],
title: json["title"],
);
Map<String, dynamic> toJson() => {
"code": code,
"title": title,
};
}
// 频道
class DictChannelEntity {
DictChannelEntity({
this.code,
this.title,
this.icon,
});
String code;
String title;
ThumbnailEntity icon;
factory DictChannelEntity.fromJson(Map<String, dynamic> json) =>
DictChannelEntity(code: json["code"],
title: json["title"],
icon: ThumbnailEntity.fromJson(json["icon"]),
);
Map<String, dynamic> toJson() => {
"code": code,
"title": title,
"icon": icon.toJson(),};
}
// 图
class ThumbnailEntity {
ThumbnailEntity({this.url,});
String url;
factory ThumbnailEntity.fromJson(Map<String, dynamic> json) =>
ThumbnailEntity(url: json["url"],
);
Map<String, dynamic> toJson() => {"url": url,};
}
- api
lib/common/apis/gql_news.dart
/// 新闻
class GqlNewsAPI {
/// 首页
static Future<GqlIndexResponseEntity> indexPageInfo({
@required BuildContext context,
Map<String, dynamic> params,
}) async {
QueryResult response =
await GraphqlClientUtil.query(context: context, schema: GQL_INDEX_PAGE);
return GqlIndexResponseEntity.fromJson(response.data);
}
/// 翻页
static Future<List<GqlNewsResponseEntity>> newsPageList({
@required BuildContext context,
Map<String, dynamic> params,
}) async {
QueryResult response = await GraphqlClientUtil.query(context: context, schema: GQL_NEWS_LIST, variables: params);
return response.data['busNews']
.map<GqlNewsResponseEntity>((item) => GqlNewsResponseEntity.fromJson(item))
.toList();}
}
- 界面业务代码
lib/pages/main/main.dart
GqlIndexResponseEntity _indexPageData; // 首页数据
// 读取所有数据
_loadAllData() async {_indexPageData = await GqlNewsAPI.indexPageInfo(context: context);
...
if (mounted) {setState(() {});
}
}
// 拉取举荐、新闻
_loadNewsData(
categoryCode, {bool refresh = false,}) async {
_selCategoryCode = categoryCode;
_newsPageList = await GqlNewsAPI.newsPageList(context: context, params: {"category_code": categoryCode});
if (mounted) {setState(() {});
}
}
...
详见 git
资源
设计稿蓝湖预览
https://lanhuapp.com/url/lYuz1
明码: gSKl
蓝湖当初免费了,所以查看标记还请本人上传 xd 设计稿
商业设计稿文件不好间接分享, 能够加微信分割 ducafecat
© 猫哥
https://ducafecat.tech
正文完