couchdb

问题 I'm new to CouchDB and I know my mindset is probably still too much in the relational DB sphere, but here goes: It appears that querying on Couch is all done via Views. I read that temporary views are very inefficient and should be avoided in production. So my question really is how would one do effective querying with parameters (as the views do not accept them). For example if I were to use Couch to power a blog site would I have to create a new view for each post equivalent to 'select post

问题 As many of you will know the response from a couchdb view is as follows {"rows":[ {"key":"1","value":{"Col1":"Some Value"}}, {"key":"2","value":{"Col1":"Another Value"}}, ]} Well I would like to collate that to [{"key":"1","value":{"Col1":"Some Value"}}, {"key":"2","value":{"Col1":"Another Value"}}] I am considering using a "List Function" to collate the response but I wanted to know the potential performance overhead of doing something like this?? Is it worth it... or should I consider

问题 I am trying to use the webclient module to query the couchDB rest interface (I am using it instead of the opa couchdb api because I need to get a specific number of documents). Here is the code used to make the query: listmydocs(dburi)= match WebClient.Get.try_get(dburi) with | { failure = _ } -> print("error\n") | {success=s} -> match WebClient.Result.get_class(s) with | {success} -> print("{s.content}") | _ -> print("Error {s.code}") end the result given in s.content is the following string

问题 In my application I am using couchdb for storage. I want to execute update operation in which the _rev value must be change. so kindly help me what i have to do in my java program. 回答1: The code for reading, modifying and then saving a document is: Document doc = db.getDocument("documentid1234"); doc.put("foo","bar"); db.saveDocument(doc); The doc object will contain the _rev from when the document was read with the getDocument() call. You don't generate the _rev value, couch does. 来源： https:

问题 The setup: A CouchDB 2.0 running in Docker on a Raspberry PI 3 A node-application that uses pouchdb, also in Docker on the same PI 3 The scenario: At any given moment, the CouchDB has at max 4 Databases with a total of about 60 documents the node application purges (using pouchdbs destroy) and recreates these databases periodically (some of them every two seconds, others every 15 minutes) The databases are always recreated with the newest entries The reason for purging the databases, instead

问题 I'd like to create a Model Class for an User. The data of the user are stored in an document based database like couchdb or mongodb. The class User should have an decorator and the fields ind the db are accessible over not really existing class attributes. For example @DocumentDB() class User(object): def doSomething(self): pass def doSomethingElse(self): pass u = User('thisIsAUniqUserId') print u.emailAddress print u.lastName I've played around with python decorators. Manipulating existing

问题 I would like to host couchdb in a free heroku instance. I found here on stackoverflow an answer and it says, it is possible to host erlang code on heroku. Now I had the idea, to host couchdb on heroku. But it doesn't work. Here is my try: .>git clone https://github.com/apache/couchdb .git Cloning into 'couchdb'... remote: Counting objects: 55066, done. remote: Compressing objects: 100% (1582/1582), done. remote: Total 55066 (delta 2125), reused 3094 (delta 1808) Receiving objects: 100% (55066

问题 I'm using couchdb4j to establish a connection with couchDB. It's working fine when im connecting to my local db, this is the code for that: Session LocalSession= new Session("localhost", 5984); But i'm trying to get a connection with this site: stockquotetest.cloudant.com but it's not working, can anybody spot the problem? Session NewSession = new Session("stockquotetest.cloudant.com/", 5984, "user", "pass"); i'm getting this error: INFO: basic authentication scheme selected I also get this

问题 Assuming i have an existing couchdb JSON document hosted on the server. And i want to add some data to that document using PUT how can i do that ? Lets say the document has the following data already : "users : [{"name" : "John","lastname" : doe"}] I want to add another user: "users : [{"name" : "jane","lastname" : doe"}] Can this be done with curl and PUT ? assuming i get the doc id of the document from the server and do something like : curl -X PUT -d $new http://127.0.0.1:5984/database/

问题 I want to create a cloud9 automated setup script for an application, which uses couchdb for database. Part of the script, is the setup of the application database, which needs couchdb running, in order to function properly. The problem is that the only available solution about couchdb on cloud9 helps you instantiate couchdb as a foreground procedure. So if you want to test the correctness of the instantiation, or execute any other command you need to open a second terminal tab as documented