我正在使用 Gatsby/Netlify CMS 堆栈,并一直在尝试在主页上显示 markdown 文件内容。例如,我在 src/pages/experience 中有一个目录,其中显示了所有体验降价文件。
所以使用graphql,我有一个实际有效的查询:
{
allMarkdownRemark(
limit: 3,
sort: { order: DESC, fields: [frontmatter___date] },
filter: { fileAbsolutePath: { regex: "/(experience)/" } }
) {
edges {
node {
id
frontmatter {
title
company_role
location
work_from
work_to
tags
}
excerpt
}
}
}
}
但是,在我的组件页面上运行它时,它显示 × TypeError: Cannot read property 'allMarkdownRemark' of undefined
但是,在返回之前输入此内容后:
if (!data) { return null };
错误消失了,但整个部分都消失了。下面是:
const Experience = ({data}) => {
return (
<div id="experience" className="section accent">
<div className="w-container">
<div className="section-title-group">
<Link to="#experience"><h2 className="section-heading centered">Experience</h2></Link>
</div>
<div className="columns w-row">
{data.allMarkdownRemark.edges.map(({node}) => (
<div className="column-2 w-col w-col-4 w-col-stack" key={node.id}>
<div className="text-block"><strong>{node.frontmatter.title}</strong></div>
<div className="text-block-4">{node.frontmatter.company_role}</div>
<div className="text-block-4">{node.frontmatter.location}</div>
<div className="text-block-3">{node.frontmatter.work_from} – {node.frontmatter.work_to}</div>
<p className="paragraph">{node.frontmatter.excerpt}</p>
<div className="skill-div">{node.frontmatter.tags}</div>
</div>
))}
</div>
</div>
</div>
)}
export default Experience
在 gatsby-config-js 中,我添加了一个独立于 /src/posts 的 gatsby-source-filesystem 解析到 /src/pages,其中体验目录是 src/pages/experience。
更新:2/7/2019 这是 gatsby-config-js 文件:
module.exports = {
siteMetadata: {
title: `Howard Tibbs Portfolio`,
description: `This is a barebones template for my portfolio site`,
author: `Howard Tibbs III`,
createdAt: 2019
},
plugins: [
`gatsby-plugin-react-helmet`,
{
resolve: `gatsby-source-filesystem`,
options: {
name: `images`,
path: `${__dirname}/src/images`,
},
},
{
resolve: 'gatsby-transformer-remark',
options: {
plugins: [
{
resolve: 'gatsby-remark-images',
},
],
},
},
{
resolve: `gatsby-source-filesystem`,
options: {
name: `posts`,
path: `${__dirname}/src/posts`,
},
},
{
resolve: `gatsby-source-filesystem`,
options: {
name: `pages`,
path: `${__dirname}/src/pages`,
},
},
`gatsby-plugin-netlify-cms`,
`gatsby-plugin-sharp`,
{
resolve: `gatsby-plugin-manifest`,
options: {
name: `gatsby-starter-default`,
short_name: `starter`,
start_url: `/`,
background_color: `#663399`,
theme_color: `#663399`,
display: `minimal-ui`,
icon: `src/images/gatsby-icon.png`, // This path is relative to the root of the site.
},
},
`gatsby-transformer-sharp`
],
}
我的感觉是,在 gatsby-node-js 的某个地方,我没有创建一个实例来处理该类型的查询。
const path = require('path')
const { createFilePath } = require('gatsby-source-filesystem')
const PostTemplate = path.resolve('./src/templates/post-template.js')
const BlogTemplate = path.resolve('./src/templates/blog-template.js')
exports.onCreateNode = ({ node, getNode, actions }) => {
const { createNodeField } = actions
if (node.internal.type === 'MarkdownRemark') {
const slug = createFilePath({ node, getNode, basePath: 'posts' })
createNodeField({
node,
name: 'slug',
value: slug,
})
}
}
exports.createPages = async ({ graphql, actions }) => {
const { createPage } = actions
const result = await graphql(`
{
allMarkdownRemark (limit: 1000) {
edges {
node {
fields {
slug
}
}
}
}
}
`)
const posts = result.data.allMarkdownRemark.edges
posts.forEach(({ node: post }) => {
createPage({
path: `posts${post.fields.slug}`,
component: PostTemplate,
context: {
slug: post.fields.slug,
},
})
})
const postsPerPage = 2
const totalPages = Math.ceil(posts.length / postsPerPage)
Array.from({ length: totalPages }).forEach((_, index) => {
const currentPage = index + 1
const isFirstPage = index === 0
const isLastPage = currentPage === totalPages
createPage({
path: isFirstPage ? '/blog' : `/blog/${currentPage}`,
component: BlogTemplate,
context: {
limit: postsPerPage,
skip: index * postsPerPage,
isFirstPage,
isLastPage,
currentPage,
totalPages,
},
})
})
}
想知道是否有人能够得到类似工作的东西?非常感谢您的帮助。
更新:2019 年 2 月 6 日
所以对我的代码从 pageQuery 到 StaticQuery 进行了一些更改,不幸的是它仍然不起作用,但我相信它正朝着正确的方向发展:
export default() => (
<div id="experience" className="section accent">
<div className="w-container">
<div className="section-title-group">
<Link to="#experience"><h2 className="section-heading centered">Experience</h2></Link>
</div>
<div className="columns w-row">
<StaticQuery
query={graphql`
query ExperienceQuery {
allMarkdownRemark(
limit: 2,
sort: { order: DESC, fields: [frontmatter___date]},
filter: {fileAbsolutePath: {regex: "/(experience)/"}}
) {
edges {
node {
id
frontmatter {
title
company_role
location
work_from
work_to
tags
}
excerpt
}
}
}
}
`}
render={data => (
<div className="column-2 w-col w-col-4 w-col-stack" key={data.allMarkdownRemark.id}>
<div className="text-block"><strong>{data.allMarkdownRemark.frontmatter.title}</strong></div>
<div className="text-block-4">{data.allMarkdownRemark.frontmatter.company_role}</div>
<div className="text-block-4">{data.allMarkdownRemark.frontmatter.location}</div>
<div className="text-block-3">{data.allMarkdownRemark.frontmatter.work_from} – {data.allMarkdownRemark.frontmatter.work_to}</div>
<p className="paragraph">{data.allMarkdownRemark.frontmatter.excerpt}</p>
<div className="skill-div">{data.allMarkdownRemark.frontmatter.tags}</div>
</div>
)}
/>
</div>
</div>
</div>
);
我收到此错误 TypeError: Cannot read property 'title' of undefined
所以我想要完成的是本节中的这个实例。当然这是一个占位符,但我希望用每个降价的内容替换该占位符。 体验剪辑
更新:2019 年 2 月 7 日
所以今天没有变化,但想发布一些字段,以便更好地了解我正在尝试做的事情。这是来自 NetlifyCMS 的 config.yml 文件,它在其中显示集合。这就是我正在完成的(注意:测试 repo 只是为了查看实际的 CMS,我会寻求改变):
backend:
name: test-repo
branch: master
media_folder: static/images
public_folder: /images
display_url: https://gatsby-netlify-cms-example.netlify.com/
# This line should *not* be indented
publish_mode: editorial_workflow
collections:
- name: "experience"
label: "Experience"
folder: "experience"
create: true
fields:
- { name: "title", label: "Company Title", widget: "string" }
- { name: "company_role", label: "Position Title", widget: "string" }
- { name: "location", label: "Location", widget: "string" }
- { name: "work_from", label: "From", widget: "date", format: "MMM YYYY" }
- { name: "work_to", label: "To", default: "Present", widget: "date", format: "MMM YYYY" }
- { name: "description", label: "Description", widget: "text" }
- { name: "tags", label: "Skills Tags", widget: "select", multiple: "true",
options: ["ReactJS", "NodeJS", "HTML", "CSS", "Sass", "PHP", "Typescript", "Joomla", "CMS Made Simple"] }
- name: "blog"
label: "Blog"
folder: "blog"
create: true
slug: "{{year}}-{{month}}-{{day}}_{{slug}}"
fields:
- { name: path, label: Path }
- { label: "Image", name: "image", widget: "image" }
- { name: title, label: Title }
- { label: "Publish Date", name: "date", widget: "datetime" }
- {label: "Category", name: "category", widget: "string"}
- { name: "body", label: "body", widget: markdown }
- { name: tags, label: Tags, widget: list }
- name: "projects"
label: "Projects"
folder: "projects"
create: true
fields:
- { name: date, label: Date, widget: date }
- {label: "Category", name: "category", widget: "string"}
- { name: title, label: Title }
- { label: "Image", name: "image", widget: "image" }
- { label: "Description", name: "description", widget: "text" }
- { name: body, label: "Details", widget: markdown }
- { name: tags, label: Tags, widget: list}
- name: "about"
label: "About"
folder: "src/pages/about"
create: false
slug: "{{slug}}"
fields:
- {
label: "Content Type",
name: "contentType",
widget: "hidden",
default: "about",
}
- { label: "Path", name: "path", widget: "hidden", default: "/about" }
- { label: "Title", name: "title", widget: "string" }
- { label: "Body", name: "body", widget: "markdown" }
对于降价页面的示例,这将是在体验部分中查找的格式,因为正如您在图片中看到的那样,它显示在整个容器中:
---
title: Test Company
company_role: Test Role
location: Anytown, USA
work_from: January, 2020
work_to: January, 2020
tags: Test, Customer Service
---
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.
更新:2019 年 2 月 8 日
我确实对下面提供的代码进行了一些更新,但在我开始之前,这里有一些我想要完成的图像。这些是我希望替换为真实数据的占位符。这是针对每个部分的:
我已经运行了@staypuftman 在下面的答案中提供的代码,并出现了这个错误:
您网站的“gatsby-node.js”创建了一个页面,其中包含一个不存在的组件。
除了已经存在的代码之外,我还添加了代码并处理了该错误。这就是我最初认为会发生的事情,也是我想独立使用 StaticQuery 的原因。这实际上是我在文档和入门存储库中遇到的主要问题,没有人真正在 node.js 中创建多个变量。
我还尝试了来自@DerekNguyen 的修订版,看起来像这样:
import React from "react"
import { Link, graphql, StaticQuery } from "gatsby"
export default(data) => (
<div id="experience" className="section accent">
<div className="w-container">
<div className="section-title-group">
<Link to="#experience"><h2 className="section-heading centered">Experience</h2></Link>
</div>
<div className="columns w-row">
<StaticQuery
query={graphql`
query ExperienceQuery {
allMarkdownRemark(
limit: 2,
sort: { order: DESC, fields: [frontmatter___date]},
filter: {fileAbsolutePath: {regex: "/(experience)/"}}
) {
edges {
node {
id
frontmatter {
title
company_role
location
work_from
work_to
tags
}
excerpt
}
}
}
}
`}
render={data.allMarkdownRemark.edges.map(({ node }) => (
<div className="column-2 w-col w-col-4 w-col-stack" key={node.id}>
<div className="text-block"><strong>{node.frontmatter.title}</strong></div>
<div className="text-block-4">{node.frontmatter.company_role}</div>
<div className="text-block-4">{node.frontmatter.location}</div>
<div className="text-block-3">{node.frontmatter.work_from} – {node.frontmatter.work_to}</div>
<p className="paragraph">{node.frontmatter.excerpt}</p>
<div className="skill-div">{node.frontmatter.tags}</div>
</div>
))}
/>
</div>
</div>
</div>
);
然而,这也带来了一个错误:
TypeError:无法读取未定义的属性“边缘”
仍在努力,但我认为它越来越接近解决方案。请记住,我还必须为其他变量创建它。
更新:2019 年 2 月 10 日
对于那些想看看我是如何使用 gatsby-starter 构建网站的人,这里是: