MongoDB how to find documents by searching a Mixed Type field? - mongodb

Question

I am using the mongoose, and have a search text like Guo. I have following mongo document:
I want to find the text in the field "info.value"
{
"_id" : ObjectId("5aeefc3ce104b16c7e3337a2"),
...
"info" : [
{
"availbleNotInOrgs" : [],
"_id" : ObjectId("5b9e56dc09573f260c76af96"),
"field" : ObjectId("5b73d31ecebabf4b0d07a44c"),
"value" : "Guo"
},
{
"availbleNotInOrgs" : [],
"_id" : ObjectId("5b9e56dc09573f260c76af94"),
"field" : ObjectId("5b73d3a7cebabf4b0d07a48e"),
"value" : {
"id" : "a0",
"value" : "男"
}
},
{
"availbleNotInOrgs" : [],
"_id" : ObjectId("5b9e56dc09573f260c76af92"),
"field" : ObjectId("5b73d488cebabf4b0d07a4f9"),
"value" : [
7,
23
]
},
{
"availbleNotInOrgs" : [],
"_id" : ObjectId("5b9e56dc09573f260c76af90"),
"field" : ObjectId("5b73d50acebabf4b0d07a548"),
"value" : [
{
"country" : "中国",
"code" : "+86",
"phoneNumber" : "15699511079"
},
{
"country" : "中国",
"code" : "+86",
"phoneNumber" : "1841234123",
"placeholder" : "130xxxxxxxx"
}
]
}
]
}
The schema looks like:
const NewUserSchema = new Schema({
wechat: {
unionid: { type: String },
username: { type: String },
...
},
info: [{
field: { type: mongoose.Schema.Types.ObjectId, ref: 'field' },
value: Schema.Types.Mixed,
availbleNotInOrgs: [{ type: mongoose.Schema.Types.ObjectId, ref: 'organization' }]
}],
});
The type of "info.value" is Schema.Types.Mixed
so that value could be an array, an object, a string...
For instance, I expect to match the following documents that info.value contains Guo
{
"info" : [
{
"value" : [
{
"country" : "Guo",
"phoneNumber" : "15699511079"
},
{
"code" : "+86",
"phoneNumber" : "15699511079"
}
]
}
]
}
{
"info" : [
{
"value" : [
{
"code" : "+86",
"users" : ["15699511079","Guo"]
}
]
}
]
}
What can I do if I keep the type of "info.value"?