React&Draft.js-convertFromRaw不起作用
我正在使用Draft.js来实现文本编辑器。我想将编辑器的内容保存到数据库中,然后检索它,然后再次将其注入到编辑器中,例如,在重新访问编辑器页面时。
import { ContentState, EditorState, convertToRaw, convertFromRaw } from 'draft-js';
saveBlogPostToStore(blogPost) { const JSBlogPost = { ...blogPost, content: convertToRaw(blogPost.content.getCurrentContent())};
this.props.dispatch(blogActions.saveBlogPostToStore(JSBlogPost));
}
现在,当我检查数据库时,得到以下对象:
[{"_id":null,"url":"2016-8-17-sample-title","title":"Sample Title","date":"2016-09-17T14:57:54.649Z","content":{"blocks":[{"key":"4ads4","text":"Sample Text Block","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[]}]},"author":"Lukas Gisder-Dubé","__v":0,"tags":[]}]
到目前为止,我想还不错,我尝试了一些其他方法,并且数据库中的对象肯定已转换。例如,当我保存内容而不调用convertToRaw()方法时,会有更多字段。
为了从数据库检索数据并将其设置为EditorState,我也做了很多尝试。以下是我的最佳猜测:
constructor(props) { super(props);
const DBEditorState = this.props.blogPost.content;
console.log(DBEditorState); // logs the same Object as above
this.state = { ...this.props.blogPost, content: EditorState.createWithContent(
convertFromRaw(DBEditorState)
)};
}
渲染组件时出现以下错误:
convertFromRawToDraftState.js:38 Uncaught TypeError: Cannot convert undefined or null to object
任何帮助是极大的赞赏!
回答:
似乎MongoDB / Mongoose不喜欢ContentState中的原始内容。在将数据发送到数据库之前将数据转换为String可以达到以下目的:
saveBlogPostToStore(blogPost) { const JSBlogPost = { ...blogPost, content: JSON.stringify(convertToRaw(blogPost.content.getCurrentContent()))};
this.props.dispatch(blogActions.saveBlogPostToStore(JSBlogPost));
}
constructor(props) { super(props);
const DBEditorState = convertFromRaw(JSON.parse(this.props.blogPost.content));
this.state = { ...this.props.blogPost, content: EditorState.createWithContent(
DBEditorState
)};
}
以上是 React&Draft.js-convertFromRaw不起作用 的全部内容, 来源链接: utcz.com/qa/401107.html