我在处理JS中的一些数据时感觉有些困难,我从API输出数据。对分层嵌套数据进行迭代并从中构建html
后端输出的是可以嵌套到第N级别的类别列表。
我试图做的是为他们生成一个不错的嵌套结构,使他们所代表的JSON结构,但在DOM:
<div>
Women's Fashion
<div>
Women's Clothes
<div>Dresses</div>
<div>Watches</div>
<div>Etc.</div>
</div>
<div>
Watches
</div>
<div>
Jewellery
<div>Swarowski</div>
<div>Other</div>
</div>
</div>
什么是一个好办法,我实现这个结构呢?
以下是我输出的数据的示例。这里的关键是每个类别可以有M个子类别,而结束深度实际上并不受限制。
{
"results": [
{
"id": 1,
"name": "Women's Fashion",
"hashtag": "#womensfashion",
"parent_id": null,
"parents_list": [],
"product_count": 9466,
"subcategories": [
{
"id": 2,
"name": "Womens Clothes",
"hashtag": "#womensclothes",
"parent_id": 1,
"parents_list": [
1
],
"product_count": 2940,
"subcategories": [
{
"id": 3,
"name": "Dresses",
"hashtag": "#dresses",
"parent_id": 2,
"parents_list": [
2,
1
],
"product_count": null,
"subcategories": []
},
{
"id": 4,
"name": "Tops",
"hashtag": "#womenstops",
"parent_id": 2,
"parents_list": [
2,
1
],
"product_count": null,
"subcategories": []
},
{
"id": 5,
"name": "Outwear",
"hashtag": "#womensoutwear",
"parent_id": 2,
"parents_list": [
2,
1
],
"product_count": null,
"subcategories": []
},
{
"id": 6,
"name": "Shirts",
"hashtag": "#womensshirts",
"parent_id": 2,
"parents_list": [
2,
1
],
"product_count": null,
"subcategories": []
},
{
"id": 7,
"name": "Pants and Shorts",
"hashtag": "#womenspantsandshorts",
"parent_id": 2,
"parents_list": [
2,
1
],
"product_count": null,
"subcategories": []
},
{
"id": 8,
"name": "Skirts",
"hashtag": "#skirts",
"parent_id": 2,
"parents_list": [
2,
1
],
"product_count": null,
"subcategories": []
},
{
"id": 9,
"name": "Jeans",
"hashtag": "#womensjeans",
"parent_id": 2,
"parents_list": [
2,
1
],
"product_count": null,
"subcategories": []
},
{
"id": 10,
"name": "Lingerie and Nightweare",
"hashtag": "#lingerieandnightweare",
"parent_id": 2,
"parents_list": [
2,
1
],
"product_count": null,
"subcategories": []
},
{
"id": 12,
"name": "Muslimawear",
"hashtag": "#womensmuslimawear",
"parent_id": 2,
"parents_list": [
2,
1
],
"product_count": null,
"subcategories": []
},
{
"id": 109,
"name": "Other Womensclothes",
"hashtag": "#otherwomensclothes",
"parent_id": 2,
"parents_list": [
2,
1
],
"product_count": null,
"subcategories": []
},
{
"id": 135,
"name": "Sweaters and Jackets",
"hashtag": "#womenssweatersandjackets",
"parent_id": 2,
"parents_list": [
2,
1
],
"product_count": null,
"subcategories": []
}
]
},
{
"id": 15,
"name": "Bags, Purses and Wallets",
"hashtag": "#womensbags",
"parent_id": 1,
"parents_list": [
1
],
"product_count": 1626,
"subcategories": []
},
{
"id": 16,
"name": "Shoes",
"hashtag": "#womensshoes",
"parent_id": 1,
"parents_list": [
1
],
"product_count": 811,
"subcategories": []
},
{
"id": 19,
"name": "Watches",
"hashtag": "#womenswatches",
"parent_id": 1,
"parents_list": [
1
],
"product_count": 513,
"subcategories": []
},
{
"id": 17,
"name": "Eyewear",
"hashtag": "#womenseyewear",
"parent_id": 1,
"parents_list": [
1
],
"product_count": 145,
"subcategories": []
},
{
"id": 18,
"name": "Jewellery",
"hashtag": "#womensjewellery",
"parent_id": 1,
"parents_list": [
1
],
"product_count": 289,
"subcategories": []
},
{
"id": 110,
"name": "Other Womensfashion",
"hashtag": "#otherwomensfashion",
"parent_id": 1,
"parents_list": [
1
],
"product_count": 129,
"subcategories": []
}
]
}
]
}
我在想我需要做的是声明一个函数,它遍历一个层次并返回所有内容。像
process_category(category)
{
let html = [];
for(var i = 0; i < category.length; i++)
{
let nested_html = null;
if(i.subcategories.length > 0)
{
nested_html = process_category(i.subcategories);
}
let new_html = [
<ListItem
primaryText={i.name}
onTouchTap={this.click_category.bind(this, i.id)}
nestedItems={[nested_html]}
/>
];
html = [...html, ...new_html];
}
return(html);
}
编辑: 倍感stupud不实现的JavaScript /每个作品(正在写一个python for x in categories: print x.name
)
固定代码的作品,但我不知道如何得到优化:
process_category(category)
{
let html = [];
for(var i in category)
{
let nested_html = null;
if(category[i].subcategories.length > 0)
{
nested_html = this.process_category(category[i].subcategories);
}
let new_html = [
<ListItem
primaryText={category[i].name}
// onTouchTap={this.click_category.bind(this, category[i].id)}
nestedItems={nested_html}
/>
];
html = [...html, ...new_html];
}
return(html);
}
你尝试过什么?请编辑您的问题以包含您迄今为止的代码。 –
对不起,我注意到这是非常不完整的,我刚刚编辑了一些我尝试过的东西。 –