couchdb

问题 I am about to write a filter function on CouchDB server side to filter documents specific to the user . This filter will allow replication only for those few selected documents that a particular user has access to rather than whole database of TBs of size. Here I found a similar question CouchDB: Restricting users to only replicating their own documents but it does not provide me the info that I need. SO my questions remain: What can be the best approach to specify such a filter? How should I

问题 I have an HTML form for authentication of users, with SQL language is easier to extract data select name, password from users where name='nameField' and password='passwordField' In couchdb I cant use local views just temp views: curl -X POST -H 'Content-Type: application/json' -d '{"map": "function (doc) {if (doc.name === "nameField" && doc.password === "passwordField") {emit (doc.name, doc.passWord)}}"}' http://localhost:5984/somedb/_temp_view But it isnt recommended (Click here), what

问题 I want to perform a LIKE-condition (SQL syntax) in CouchDB. How can this be done? The LIKE-condition will be used to perform auto complete in the browser. I want to write "co" in the input field and get the results Coffee, Couch, CouchDB ect. 回答1: It is very easy to search for letters at the beginning of a string. You just need a view that emits the string you want to search for as the key. Assuming the user input is stored in a variable q , you then call that view with the parameters

问题 I use the PouchDB-authentication plugin and I love it. However, I'm a little confused about the signup process and maybe I don't use it the right way. I use it to create new users in my CouchDB database but I don't understand why it is associated with a specific database? Since I create CouchDB user before his specific database, I have to use a dummy database to create the new user: // Create or get a database on the CouchDB server to further create a new user var remoteDB = new PouchDB('http

问题 I'm working with a locations database in CouchDB. I created a view where my key is an array with rounded values of latitude and longitude. Now I'm selecting with the following conditions: Startkey: [ 52.34, 4.883 ] Endkey: [ 52.37, 4.903 ] Here I expect that I'll only receive documents where the latitude is between 52.34 and 52.37. And the longitude between 4.883 and 4.903. The result I receive: [ 52.358, 4.919 ] [ 52.358, 4.919 ] [ 52.362, 4.861 ] [ 52.362, 4.861 ] [ 52.362, 4.861 ] As you

问题 I have a couchdb view set up using an array key value, in the format: [articleId, -timestamp] I want to query for all entries with the same article id. All timestamps are acceptable. Right now I am using a query like this: ?startkey=["A697CA3027682D5JSSC",-9999999999999]&endkey=["A697CA3027682D5JSSC",0] but I would like something a bit simpler. Is there an easy way to completely wildcard the second key element? What would be the simplest syntax for this? 回答1: First, as a comment pointed out,

问题 Is there any way to have multiple tag search implemented in CouchDB? I have documents (posts) each with multiple tags. I need to find posts that have been tagged with an arbitrary set of tags. How do I do it? I could of course do it with multiple calls to a view which gives me the documents for a tag and then sort it out in my app but I wanted to know if there was a way to achieve the same in the CouchDB view land. 回答1: In the more recent versions of CouchDB, you can POST to a view with a

问题 I have a CouchDB view map function that generates an abstract of a stored HTML document (first x characters of text). Unfortunately I have no browser environment to convert HTML to plain text. Currently I use this multi-stage regexp html.replace(/<style([\s\S]*?)<\/style>/gi, ' ') .replace(/<script([\s\S]*?)<\/script>/gi, ' ') .replace(/(<(?:.|\n)*?>)/gm, ' ') .replace(/\s+/gm, ' '); while it's a very good filter, it's obviously not a perfect one and some leftovers slip through sometimes. Is

问题 The setup: I have a project that is using CouchDB. The documents will have a field called "tags". This "tags" field is an array of strings (e.g., "tags":["tag1","tag2","etc"]). I am using couchdb-lucene as my search provider. The question: What function can be used to get couchdb-lucene to index the elements of "tags"? If you have an idea but no test environment, type it out, I'll try it and give the result here. 回答1: Well it was quite easy after I figured it out. Please realize that the $

问题 I'm using CouchDB. I'd like to be able to count occurrences of values of specific fields within a date range that can be specified at query time. I seem to be able to do parts of this, but I'm having trouble understanding the best way to pull it all together. Assuming documents that have a timestamp field and another field, e.g.: { date: '20120101-1853', author: 'bart' } { date: '20120102-1850', author: 'homer'} { date: '20120103-2359', author: 'homer'} { date: '20120104-1200', author: 'lisa'