使用flask和python从mongo中提取多个记录

我还在这里学习，目前正在尝试使用FLASK创建Restful接口

我想做的是从mongo数据库中取出一组记录。 我发现_one（）工作得很好，现在正在探索如何在光标上移动

当我知道至少有5条记录时，此代码仅显示一条记录

@app.route('/oer/api/v1.0/getType/', methods = ['GET'])
def getType():

    # Prepare a dictionary object to hold the result of any processing
    result = {}

    # Get hold of DB connection
    db_connection = getDbConnection()
    db = db_connection['OER']
    # Extract all records passed for the paramater that matches "Type": ie MOOC
    oerType = request.args.get("oerType");
    # test to see that there is something in the string if so try to get a record
    # Not doing this test yet lets get it working with a known record first 

    for d in db.oer_records.find({"Type":oerType}): 
        result.update(make_public_page(d))

    return jsonify(result) 

所以它可以工作，但只返回一个json文档，而不是一个集合？我以为result.update每次通过时都会附加一条新记录 仅供参考，make_public_page（）删除野牛ID以允许jsonify工作

这就是它的回报

{
    "Account No": 1,
    "Country/ continent": "Argentina",
    "Educational Level": "Schools",
    "Educational Level (ISCED)": "2|3",
    "End year": "",
    "Funders": "",
    "Geolocation": "",
    "Initiative HQ address": "",
    "Initiative HQ city": "",
    "Initiative URL": "http://www.gleducar.org.ar",
    "Type": "OER"
}

谢谢你的帮助

---

感谢当使用

dict.update（dict2）

时，您正在向dict添加dictionary dict2的键值对，从而生成一个大dict。您可能需要做的是创建一个dict列表

mylist = []
mylist.append(dict)

翻译成您的代码：

@app.route('/oer/api/v1.0/getType/', methods = ['GET'])
def getType():

    # Prepare a dictionary object to hold the result of any processing
    result = []  # create a list instead of dict

    # Get hold of DB connection
    db_connection = getDbConnection()
    db = db_connection['OER']
    # Extract all records passed for the paramater that matches "Type": ie MOOC
    oerType = request.args.get("oerType");
    # test to see that there is something in the string if so try to get a record
    # Not doing this test yet lets get it working with a known record first 

    for d in db.oer_records.find({"Type":oerType}): 
        result.append(make_public_page(d))  # append to the list of dicts

    return jsonify(items=result) 

---

python和flask仍然非常新，您的意思是在result={}下添加mylist=[]，然后添加mylist.append（make_public_page（d））？我得到了ValueError:dictionary update sequence元素#0的长度为36；2是必需的吗？谢谢你的意见@Richard将最后一行更改为

返回jsonify（items=result）

。我忘记了jsonify不能返回数组

make_public\u page（d）

返回一个dict，对吗？这就是诀窍，谢谢-现在需要整理空seraches的响应，以及如何将它们分为10个记录的批次，但作为一组打印会产生很大的不同！