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POpymongo justOne & multi
 

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  1. POpymongo justOne & multi
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    <p>I have a database "testdb" with collection "testcol" which looks like this:</p> <pre><code>{u'_id': ObjectId('50eeb8029b75941b9af614bd'), u'birth': 1} {u'_id': ObjectId('50eeb82e9b75941bc820f22c'), u'birth': 2} {u'_id': ObjectId('50eeb82e9b75941bc820f22d'), u'birth': 3} {u'_id': ObjectId('50eeb82f9b75941bce96032c'), u'birth': 2} {u'_id': ObjectId('50eeb82f9b75941bce96032d'), u'birth': 3} </code></pre> <p>The code is like:</p> <pre><code>m_connection = MongoClient(M.HOST,M.PORT) col = m_connection['testdb']['testcol'] #some_operation cursor = col.find() for doc in cursor: print doc </code></pre> <p>Im trying to update all the documents with birth higher than one, so I replace some_operation with <code>col.update({'birth':{'$gt':1}},{'$set':{'death':'near'}},{'multi':True})</code> I get the error: <code>TypeError: upsert must be an instance of bool</code></p> <p>Similarly, I want to delete only one out of all the documents that have birth as 2 0r 3.<br> I replace some_operation with <code>col.remove({'birth' : {'$in' : [2,3]}},{'justOne' : 1})</code> I get the error: <code>TypeError: Wrong type for safe, value must be a boolean</code></p> <p>I tried using direct booleans in place of {} array, but only one document is update and all those with birth as 2 or 3 are deleted. </p> <p>Just in case it has something to do with versions: I have pymongo-2.4.1 and Python2.7 Any clues where im going wrong?? Thanks a lot.</p> <p>Edit: The documentation says: update(spec, document[, upsert=False[, manipulate=False[, safe=None[, multi=False[, check_keys=True[, **kwargs]]]]]])</p> <p>Does it mean that: if i want to use 'multi'=True, i have to compulsarily go around defining values for whatever (upsert, manipulate, safe) comes before it?</p> <p>Also, for remove, it says: remove([spec_or_id=None[, safe=None[, **kwargs]]]) Where is the 'justOne' mentioned <a href="http://docs.mongodb.org/manual/applications/delete/" rel="nofollow">here</a>??</p>
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