couchdb

问题 Using cradle, how am I able to pass parameters to a view in CouchDB? Update Say I want to return documents which match other properties than _key (the default)... // document format { _key, postHeading, postBody, postDate } What if I wanted to match documents against the postHeading property... How would I go about this? What would the view look like, and how would I pass a search string to that view? At the moment I'm doing this... database.get("980f2ba66d5c8f9c91b9204a4d00022a", function

问题 I didn't see any way to insert documents in bulk using Couchbase Python client. Any example of how to insert documents in bulk using REST api? 回答1: I am answering here for Couchbase only, as you probably know they are 2 different project with different features. The Python SDK does not have a way to bulk load the data. So to do that you can use: - the standard set/add methods - the cbdocloader command line tool that allows you to inject data from the file system into Couchbase Server see :

问题 I have a question, i have 2 kind of documents, one of them is like this: { "type": "PageType", "filename": "demo" "content": "zzz" } and another one like this: { "type": "PageCommentType", "refFilename": "demo" "content": "some comment content" } i need to emit document that contains .comments field which is array of PageCommentType documents that i link on condition PageType document filename == PageCommentType document refFilename fields. { "filename": "demo", "comments": [{}, {}, {}] }

问题 I have a news base that needs to work online and offline. I'm using CouchDB (IBM Cloudant ) and PouchDB to make this sync with the APP. The problem is that the news is relatively "heavy" for having photos and am having sync problems because the size of the "docs", and does not see any need to synchronize all the news base, will only fill the user's mobile phone with unnecessary records. I need to sync only some news, approx. five registers. I wonder how can I do this in CouchDB or PouchDB. I

问题 I want to administrate my User-entities in a grid. I want to sort them and I want to have a search filter for each column. My dynamic generated temporary view works fine: function(doc){ if(doc.type === 'User' && // Dynamic filters: WHERE firstName LIKE '%jim%' AND lastName LIKE '%knopf%' (doc.firstName.match(/.*?jim.*?/i) && doc.lastName.match(/.*?knopf.*?/i)) ) { // Dynamic sort emit(doc.lastName, doc); } } BUT everywhere is written you have to AVOID temporary views. IS there a better way?

问题 I want to find same value in CouchDB. My Map is function(doc) { var user = []; if(doc.type = 'user'){ user.push(doc.name); emit( doc.type, user); } } And I have the results like ["Bob"],["Peter"],["Bob"] .... I'd Like to Have a reduce like ["Bob","Peter","Bob"] Or an Array with only duplicate ["Bob","Bob"] I don't understand How reduce works. foreach value reduce is called or only when the map is finished? 回答1: Let's say you have the following three documents. Bob: { "_id":

问题 This is my JSON schema: {"emp_no": .., "salary": .., "from_date": .., "to_date": .., "type" : "salaries"} {"emp_no": .., "title": .., "from_date": .., "to_date" : .., "type" : "titles"} What i wanted to do, is to find the average salary for each active title. Active titles are document with "from_date" attribute set to "9999-01-01" Here is my Map Function function(doc) { if (doc.type == 'salaries') { var dateSalaries = null; dateSalaries = doc.to_date.split("-"); if(dateSalaries[0]

问题 I was working couchdb-python ( http://code.google.com/p/couchdb-python/ ) and i was wondering if I have any way to retrieve a full list of revisions that have occurred on a document level? Suppose I have a database named "movies" and it contains several documents. Each of my documents have more than 3 revisions. Can I retrieve my documents based on the revisions? If yes, how? I didn't see any obvious method to do it using CouchDB-Python 回答1: I am not sure about couchdb-python, however you can

问题 How to fetch multiple documents from CouchDB, in particular with couchdb-python? 回答1: Easiest way is to pass a include_docs=True arg to Database.view. Each row of the results will include the doc. e.g. >>> db = couchdb.Database('http://localhost:5984/test') >>> rows = db.view('_all_docs', keys=['docid1', 'docid2', 'missing'], include_docs=True) >>> docs = [row.doc for row in rows] >>> docs [<Document 'docid1'@'...' {}>, <Document 'docid2'@'...' {}>, None] Note that a row's doc will be None if

问题 I have a Hyperledger Fabric network setup with 3 peers, each with a CouchDB persistence container. If I go through the Fauxton interface and alter a JSON record, this state change is propagated to all three peers, which are in the same org. However, there is no record of the state change in the blockchain. No transaction is created for it. If it's not a blockchain transaction causing the state change to be propagated to all peers, what mechanism is causing it? How in the heck is the state