Ingeza mafikirio ya Python kwenye MongoDB

Mafikirio ya MongoDB yana uhusiano na rekodi za mbio ya SQL.

Kuingiza kikaa

Kuingiza rekodi kwenye kikaa cha MongoDB, tunatumia insert_one() Mwongozo.

insert_one() Mwongozo wa kwanza ni mawili ambao inatumika kusababisha kila jina la kiwango na thamani ya kitabu kilichotumika kuingiza.

mwigina

Ingeza rekodi kwenye kikaa cha "customers":

import pymongo
myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["mydatabase"]
mycol = mydb["customers"]
mydict = { "name": "Bill", "address": "Highway 37" }
x = mycol.insert_one(mydict)

Kutumia Mifano

ina kwa upande wa _id

insert_one() Method inatuma mawasiliano ya InsertOneResult, ambayo ina tabia inserted_id, inatumika kusabaabisha idadi ya kitabu kilichotumika kuingiza.

mwigina

Ingeza rekodi mpya kwenye kikaa cha "customers" na kuwaachia idadi ya kundi ya _id:

mydict = { "name": "Peter", "address": "Lowstreet 27" }
x = mycol.insert_one(mydict)
print(x.inserted_id)

Kutumia Mifano

Ikiwa hataru inasababisha _id Ujumbe, ni hivyo hata kama ni kitu pekee, kwa sababu MongoDB itakataa idadi pekee ya ID kwa kila kitabu.

Kwenye mivuno hivi, hakuna ujumbe wa _id Makutano, kwa kuzingatia kwamba MongoDB inasababisha idadi pekee ya _id kwa kila rekodi (kitabu).

Kuingiza mafikirio mengi

Kuongeza mafikirio mengi kwenye kikaa cha MongoDB, tunatumia insert_many() Mwongozo.

insert_many() Mwongozo wa kwanza ni orodha ya mawili inayotumika kusababisha data iliyotumiwa:

mwigina

import pymongo
myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["mydatabase"]
mycol = mydb["customers"]
mylist = [
  { "name": "Amy", "address": "Apple st 652"},
  { "name": "Hannah", "address": "Mountain 21"},
  { "name": "Michael", "address": "Valley 345"},
  { "name": "Sandy", "address": "Ocean blvd 2"},
  { "name": "Betty", "address": "Green Grass 1"},
  { "name": "Richard", "address": "Sky st 331"},
  { "name": "Susan", "address": "One way 98"},
  { "name": "Vicky", "address": "Yellow Garden 2"},
  { "name": "Ben", "address": "Park Lane 38"},
  { "name": "William", "address": "Central st 954"},
  { "name": "Chuck", "address": "Main Road 989"},
  { "name": "Viola", "address": "Sideway 1633"}
]
x = mycol.insert_many(mylist)
# Kupiga Mawasiliano ya _id ya kina:
print(x.inserted_ids)

Kutumia Mifano

insert_many() Method inatuma matokeo ya InsertManyResult, ambao ina uingiliano inserted_idskwa kuhifadhi id za andiko zilizotumika.

Wingia andiko nyingi na ID zilizochaguliwa

Ikiwa huna lazima inafikie id ya kipya ya MongoDB kwa andiko yako, inaweza kuingiza kundi la _id wakati wa kuingiza andiko.

Tumekuja kumekuja, thamani haifuweza kumekuja kipya. Do kwa faili mbili haikupweza kuwa na id hiyo ya kipya.

mwigina

import pymongo
myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["mydatabase"]
mycol = mydb["customers"]
mylist = [
  { "_id": 1, "name": "John", "address": "Highway 37"},
  { "_id": 2, "name": "Peter", "address": "Lowstreet 27"},
  { "_id": 3, "name": "Amy", "address": "Apple st 652"},
  { "_id": 4, "name": "Hannah", "address": "Mountain 21"},
  { "_id": 5, "name": "Michael", "address": "Valley 345"},
  { "_id": 6, "name": "Sandy", "address": "Ocean blvd 2"},
  { "_id": 7, "name": "Betty", "address": "Green Grass 1"},
  {"_id": 8, "name": "Richard", "address": "Sky st 331"}
  {"_id": 9, "name": "Susan", "address": "One way 98"},
  {"_id": 10, "name": "Vicky", "address": "Yellow Garden 2"},
  {"_id": 11, "name": "Ben", "address": "Park Lane 38"},
  {"_id": 12, "name": "William", "address": "Central st 954"},
  {"_id": 13, "name": "Chuck", "address": "Main Road 989"},
  {"_id": 14, "name": "Viola", "address": "Sideway 1633"}
]
x = mycol.insert_many(mylist)
# Kupiga Mawasiliano ya _id ya kina:
print(x.inserted_ids)

Kutumia Mifano