couchdb

问题 I set up a new CouchDB on my local computer. When I try to upload new documents to an existing database using HTTP POST method, CouchDB refuses the request and claims it was HTTP OPTIONS method. Typescript classes My service class looks as follows. import { Injectable } from '@angular/core'; import { HttpClient } from '@angular/common/http'; @Injectable() export class DbService { private static readonly BASE_URL = 'http://localhost:5984/'; private static readonly ENTRIES_URL = DbService.BASE

问题 I have this problem that I think would require me to do multiple(two) mapreduces to get the expected result. Is this possible in CouchDB? If not, A are there other database engines that might support this? 回答1: No . You could try Couldant hosting, which support map-reduce chaining, but that would lock you into that platform, as far as I can tell. If a delay is acceptable, you may use an asynchronous process to feed the view data back into CouchDB as input for the second view. 来源： https:/

问题 I've been working a lot with Cradle, the couchDB client. However, I have a document filled with key-value pairs, and I'm trying to delete a specific row in there. In the documentation, I cannot find a way to do deletion that doesn't include deleting the entire document or updating it with a null value. Can anyone point me in the right direction? I feel this is most likely a very simple issue that lots of people run into. 回答1: In CouchDB, there is no support for partial document updates

问题 We want to check if a document already exists in the database with the same fields and values of a new object we are trying to save to prevent duplicated item. Note: This question is not about updating documents or about duplicated document IDs, we only check the data to prevent saving a new document with the same data of an existing one. Preferably we'd like to accomplish this with Mango/Cloudant queries and not rely on views. The idea so far is: 1) Scan the the data that we are trying to

问题 This question already has an answer here : Mango search in Arrays (1 answer) Closed 6 months ago . I have the following json document on my couch db. { { "_id": "someid|goes|here", "collected": { "tags": ["abc", "def", "ghi"] } }, { "_id": "someid1|goes|here", "collected": { "tags": ["abc", "klm","pqr"] }, }, { "_id": "someid2|goes|here", "collected": { "tags": ["efg", "hij","klm"] }, } } How can I get the records where collected.tags contains abc ? What I have tried so far is { "selector": {

问题 I just stumbled across CouchDB and PouchDB sync features. Typically web applications have an application server implementing authentication, rights and business logic allowing to limit users access to specific resources/records. This brought up several questions in my mind: Is it possible to limit access to records within couch db. Eg. a super-admin sees everything, a department-manager everything of his department and a simple user only his own records or e.g. tasks assigned to him? Is

问题 I am trying to work with AngularJS and CouchDB with json type documents. Could you anyone please provide any examples on these integration like any CRUD examples to work and to integrate so that I can perform any crud operations and can save/retrieve any json documents in/from database. Thanks in advance. 回答1: You should take a look at PouchDB - https://pouchdb.com/ - you can use pouchdb as a http api and connect to a remote couchdb database from your angularJS services. There are also

问题 I want to store inline attachments along with new document. Can any body provide the java script snippet to store inline attachments. And is there any way to provide a key while attaching file. Thanks in advance 回答1: To begin, read the CouchDB attachments documentation. For example: In document my_doc To attach a file hello.html With content Hello, world You encode the content with base64. "Hello world" is "'SGVsbG8gd29ybGQ=" . And you create a document like this: { "_id": "my_doc", , "

问题 I am currently parsing a web service that give me Json Documents as response. I want to store those in CouchDb using java, but I cannot find a way. With the couchdb library for java (Ektorp, couchdb4j etc...) I can only store java documents in the database, which would mean I have to transform my raw json to java Document in order to store them. Do you have any idea how i could directly store raw json ? Many thanks in advance 回答1: The Ektop documentation provides an example of updating a

问题 I have Couch-DB map-reduce view which outputs this; { rows: [ { key: [ "2014-08-20", 2, "registration" ], value: 2 }, { key: [ "2014-08-20", 2, "search" ], value: 3 }, { key: [ "2014-08-21", 2, "registration" ], value: 3 }, { key: [ "2014-08-21", 2, "search" ], value: 4 } ] } I need to query all the records that has between 2014-08-20 and 2014-08-21 Also the same time I need the integer value in the middle to be 2 and the last value to be "registration". My curl request URL looks like this