MongoSF - Spatial MongoDB in OpenShift - script file
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This document provides instructions for adding spatial data to MongoDB. It details how to import a JSON file containing coordinate data into a MongoDB database hosted on OpenShift, build a 2D index on the coordinate field, perform spatial queries to find documents near a given location, insert new documents with location data to new and existing collections, and update the notes field of an existing document.
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![1 #commands for adding spatial data!
2 !
3 #Take a look at the file first!
4 less parkcoord.json!
5 #get the file on the server!
6 scp parkcoord.json 0b49d9219f2847c6a236820959f9a@parks-spmongo.rhcloud.com:parks/data/!
7 !
8 #ssh into the machine!
9 ssh 0b49d9219f2847c6a236820959f9a@parks-spmongo.rhcloud.com!
10 !
11 #import into mongo!
12 mongoimport -d parks -c mongosf --type json --file parks/data/parkcoord.json -h $OPENSHIFT_NOSQL_DB_HOST -u admin -p <your
… password>!
13 !
14 #open the mongo shell!
15 mongo -u admin -p <your password> $OPENSHIFT_NOSQL_DB_HOST/parks!
16 !
17 #build the index!
18 db.mongosf.ensureIndex({"pos":"2d"});!
19 !
20 #Now some queries!
21 #simple spatial!
22 db.mongosf.find({"pos" : { "$near" : [-37, 41]}});!
23 !
24 #spatial and text query using regex!
25 db.mongosf.find( { Name : /lincoln/i, pos : { $near : [-37,41] }} );!
26 !
27 #geonear TODO!
28 db.runCommand({ geoNear : "mongosf", near : [-37,41], num : 10 });!
29 !
30 !
31 #create a new collection from scratch!
32 db.createCollection("mongosfuserloc");!
33 db.mongosfuserloc.ensureIndex( { pos : "2d" } );!
34 !
35 #insert a new record!
36 db.mongosfuserloc.insert({ "created" : new Date(), "Notes" : 'just landed', "pos" : [-76.7302 , 25.5332 ] })!
37 ! !
38 #quick query to make sure it worked!
39 db.mongosfuserloc.find( { pos : { $near : [-37,41] } } )!
40 !
41 #add a second document closer to query point!
42 #this is an upsert - since we don't pass in the _id it creates a new record!
43 db.mongosfuserloc.save({ created : new Date(), Notes: 'that was a big step', pos : [-37.7302 , 40.5332 ]});!
44 !
45 #one way to update original document!
46 myDoc = db.mongosfuserloc.findOne({_id : ObjectId("ID for the first object")});!
47 myDoc.Notes = "really the landing";!
48 db.mongosfuserloc.save(myDoc);!
49](https://image.slidesharecdn.com/script-120504182831-phpapp01/85/MongoSF-Spatial-MongoDB-in-OpenShift-script-file-1-320.jpg)
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