在Gatsby JS中获取WordPress子菜单 [英] Get WordPress Submenus in Gatsby JS
问题描述
我正在摆弄Gatsby JS(使用WP作为后端),到目前为止一切都很好.现在,我试图插入菜单,该菜单对于主菜单项的作用与预期的一样.我不能真正动脑筋的是如何拉入子菜单.
I am fiddling around with Gatsby JS using WP as the backend and so far so good. Now I was trying to pull in the menu which for main menu items works just as expected. What I can't really wrap my head around is how to get the submenus pulled in.
我发现的唯一相关内容是 https://github.com/gatsbyjs/gatsby/issues/2426 ,如果我记录数据,它确实会给我子菜单.只是无法将它们拉入菜单.
The only related thing I found was https://github.com/gatsbyjs/gatsby/issues/2426 which does give me the submenus if I log the data. Just can't get them to be pulled into the menu.
这是我在layouts/index.js中的查询:
Here is my query in layouts/index.js:
export const query = graphql`
query LayoutQuery {
allWordpressWpApiMenusMenusItems {
edges {
node {
name
count
items {
order
title
url
wordpress_children {
wordpress_id
title
url
}
}
}
}
}
}
`
这是我的菜单组件:
class MainMenu extends Component {
render(){
const data = this.props.menu.allWordpressWpApiMenusMenusItems.edges["0"].node.items
console.log(data)
return(
<div>
<h1>Menu</h1>
<ul>
{data.map((item) =>
<li key={item.object_slug}>
<Link to={item.url}>
{item.title}
</Link>
</li>
)}
</ul>
</div>
)
}
}
export default MainMenu
我尝试摆弄
{item.children["0"].wordpress_children.title}
但无法使其正常工作:/任何想法或指示都将不胜感激!
but just can't get it to work:/ Any ideas or pointers would be much appreciated!
推荐答案
我刚刚对此进行了测试,您的逻辑很合理,您需要的是显示子项的另一个循环.因此,在MainMenu.js中,您可以执行以下操作:
I just tested this, and your logic is sound all you need is another loop to display subitems. So in your MainMenu.js you can do something like this:
class MainMenu extends Component {
render() {
const data = this.props.menu.allWordpressWpApiMenusMenusItems.edges[0].node.items
console.log(data)
return (
<div>
<h1>Main Menu</h1>
<ul>
{data.map((item) =>
<li key={item.object_slug}>
<Link to={item.url}>
{item.title}
</Link>
<ul>
{item.wordpress_children && item.wordpress_children.map((subitem) =>
<li key={item.wordpress_id}>
<Link to={subitem.url}>
{subitem.title}
</Link>
</li>
)}
</ul>
</li>
)}
</ul>
</div>
)
}
}
这一行非常重要 {item.wordpress_children&&item.wordpress_children.map((子项目)
这将检查您的菜单项是否包含子项,如果包含子项,则将其映射并遍历它们.
This will check if your menu item has subitems, and if it does it will map them and iterate through them.
我希望这对您有用,我对其进行了测试,并且它可以正常工作.
I hope this works for you, I tested it and it works.
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