http://stackoverflow.com/questions/17317677/mongodb-pymongo-update-didnt-work/

clip-mongodb-pymongo-update-didnt-work.py

# in most cases, less than 3 documents
es= list(jp.find({'title':t}))
if es:
    flagNotFound=False
    
    # init the correct_e
    the_e=None

    # if len(es)==1
    if len(es)==1:
        e=es[0]
        the_e = e if e['pt']==0 else jp.find_one({'_id':e['pt']})
        flagNotOnly=False
    else:
        ###note: local e, I should use `for ie in es: ...` , not the same e as jp.update(e,{...})
        for e in es:
            e_title= e['pt_title'] if e.has_key('pt_title') else e['title']
            # if the title return from getWord equals e['title] (should be hiragana)
            if e_title in titles_fromWord:
                title=e_title
                the_e = e if e['pt']==0 else jp.find_one({'_id':e['pt']})
                flagNotOnly=False
                break
            else:
                continue

    e=the_e
    if e:
        forms_to_push = list(set(titles+titles_fromWord) - set(e.get('forms', [])+[e['title']]))

        # some have forms==[]：
        # so check if len_forms=(e.get('forms',[])) equals 0 won't make sense
        len_forms=0
        if e.has_key('forms'):
            len_forms=len(e['forms'])

            ############# didn't get updated here
            jp.update(e,{'$set':{'sensesJa':sensesJa,'last':'#pushForms'},
                         '$push':{'forms':{'$each':forms_to_push}}
            })
        else:
            jp.update(e,{'$set':{'sensesJa':sensesJa,'forms':forms_to_push,'last':'#setForms'}})