[英]How to query nested field with pymongo
我有一個包含訂單數據的 JSON 文件,因此每個訂單都有一個如下所示的字段(每個 line_items 列表中僅包含 1 個元素):
"line_items": [
{
"id": 1994,
"name": "Hoodie - Blue, No",
"product_id": 21,
"variation_id": 39,
"quantity": 5,
"tax_class": "",
"subtotal": "225.00",
"subtotal_tax": "0.00",
"total": "225.00",
"total_tax": "0.00",
"taxes": [],
"meta_data": [
{
"id": 14439,
"key": "pa_color",
"value": "blue",
"display_key": "Color",
"display_value": "Blue"
},
{
"id": 14440,
"key": "logo",
"value": "No",
"display_key": "Logo",
"display_value": "No"
}
],
"sku": "woo-hoodie-blue",
"price": 45,
"parent_name": "Hoodie"
}
],
我正在嘗試使用以下代碼進行 pymongo 搜索:
mongo_orders = list(col_orders.find({"line_items[0].product_id": 21}, {"_id": 0}))
但它總是什么都不返回。 我該如何正確地做到這一點?
嘗試:
mongo_orders = list(col_orders.find({"line_items.0.product_id": 21}, {"_id": 0}))
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