map - CouchDB View with 2 Keys -


i looking general solution problem couchdb views.

for example, have view result this:

{"total_rows":4,"offset":0,"rows":[ {"id":"1","key":["imported","1"],"value":null}, {"id":"2","key":["imported","2"],"value":null}, {"id":"3","key":["imported","3"],"value":null}, {"id":"4","key":["mapped","4"],"value":null}, {"id":"5,"key":["mapped","5"],"value":null} ]

1) if want select "imported" documents use this:

view?startkey=["imported"]&endkey=["imported",{}]

2) if want select imported documents higher id 2:

view?startkey=["imported",2]&endkey=["imported",{}]

3) if want select imported documents id between 2 , 4:

view?startkey=["imported",2]&endkey=["imported",4]

my questtion is: how can select rows id between 2 , 4?

i ran same problem little while ago i'll explain solution. inside of map function can have multiple emit() calls. map function in case might like:

function(doc) {   emit([doc.number, doc.category], null);   emit([doc.category, doc.number], null); }

you can use ?include_docs=true documents of queries. query rows 2 4 be

view?startkey=[2]&endkey=[4,{}]

you can view rules sorting @ couchdb view collation


Comments

Post a Comment

Popular posts from this blog

java - Play! framework 2.0: How to display multiple image? -

i need display gallery of photos. here template: @(photos: list[photo]) @title = { <bold>gallery</bold> } @main(title,"photo"){ <ul class="thumbnails"> @for(photo <- photos) { <li class="span3"> <a href="#" class="thumbnail"> <img src="@photo.path" alt=""> </a> </li> } </ul> } and here controller method: public static result getphotos() { return ok(views.html.photo.gallery.render(photo.get())); } and here photo bean : @entity public class photo extends model { @id public long id; @required public string label; public string path; public photo(string path, string label) { this.path = path; this.label = label; } private static finder<long, photo> find = new finder<long, photo>( long.class, photo.class); public static list<phot...
Read more

gmail - Is there any documentation for read-only access to the Google Contacts API? -

i want read-only access user's google contacts. there stackoverflow member wanted this, , received following answer : yes, there is, use https://www.googleapis.com/auth/contacts.readonly scope , "view contacts". this exchange reference read-only access google contacts can find using google. simply using access token obtained attempt read usual google contacts api (i.e. https://www.google.com/m8/feeds ) fails insufficient permissions. similarly, using google contacts api on new target fails 404 errors (for example https://www.googleapis.com/auth/contacts.readonly/default/full ). is there documentation anywhere on how use api, or permissible way access google contacts api full read-write access?
Read more

php - Controller/JToolBar not working in Joomla 2.5 -

relevant code: jtoolbarhelper::custom('savecategories', 'save', '', 'save', false, false); ... <input type="hidden" name="controller" value="easyblogcontroller"> according can dig docs , own previous questions, should call savecategories() function in easyblogcontroller . i've tried setting value easyblog , easyblog.php (file name) current easyblogcontroller (class name). clicking on save button refreshes page. not redirect, echo or var_dump test code put in savecategories() function. var_dump ing jrequest::getvar('controller') , 'task' return correct values. creating controller object , using $controller->execute('task'); works. the values going depend on location of controller trying call, , have couple options here. typically there controller in base folder of component (likely components/com_easyblog) in file called controller.php , class name inside ...
Read more