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Difference between revisions of "Returning documents"

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Line 18: Line 18:
 
<div style='height:25em;'>
 
<div style='height:25em;'>
 
</div>
 
</div>
<div class=q data-lang="py3">MapReduce
+
<div class=q data-lang="py3">
 
<pre class=def>
 
<pre class=def>
 
pp.pprint(db.world.find_one())
 
pp.pprint(db.world.find_one())
pp.pprint(db.world.find()[1])
+
pp.pprint(db.world.find()[0])
pp.pprint(db.world.find().limit(1))
+
pp.pprint(list(db.world.find().limit(1)))
pp.pprint(db.world.aggregate([{"$limit":1}])
+
pp.pprint(list(db.world.aggregate([{"$limit":1}])))
 
</pre>
 
</pre>
 
</div>
 
</div>

Revision as of 15:48, 26 July 2015

#ENCODING
import io
import sys
sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-16')
#MONGO
from pymongo import MongoClient
client = MongoClient()
client.progzoo.authenticate('scott','tiger')
db = client['progzoo']
#PRETTY
import pprint
pp = pprint.PrettyPrinter(indent=4)
#CODE
from bson.code import Code
pp.pprint(db.world.find_one())
pp.pprint(db.world.find()[0])
pp.pprint(list(db.world.find().limit(1)))
pp.pprint(list(db.world.aggregate([{"$limit":1}])))