mongodbを用いたPythonクラスインスタンスのdumpとrestoreとquery検索 ref: http://qiita.com/mountcedar/items/f63006a6d5d5e14acc93

file0.txt

import numpy
import logging
from datetime import datetime
from dbarchive import Base

class Sample(Base):
    def __init__(self, maxval=10):
        self.base = "hoge"
        self.bin = numpy.arange(maxval)
        self.created = datetime.now()

print 'create sample instance'
sample01 = Sample(10)
sample01.save()
sample02 = Sample(3)
sample02.save()

for sample in Sample.objects.all():
    print 'sample: ', type(sample)
    print '\tbase: ', sample.base
    print '\tbin: ', sample.bin
    print '\tcreated: ', sample.created

sample01.bin = numpy.arange(20)
sample01.save()

for sample in Sample.objects.all():
    print 'sample: ', type(sample)
    print '\tbase: ', sample.base
    print '\tbin: ', sample.bin
    print '\tcreated: ', sample.created

print "all task completed"

file1.txt

class Sample(Base):
    def __init__(self, maxval=10):
        self.base = "hoge"
        self.bin = numpy.arange(maxval)
        self.created = datetime.now()

file2.txt

print 'create sample instance'
sample01 = Sample(10)
sample01.save()
sample02 = Sample(3)
sample02.save()

file3.txt

for sample in Sample.objects.all():
    print 'sample: ', type(sample)
    print '\tbase: ', sample.base
    print '\tbin: ', sample.bin
    print '\tcreated: ', sample.created