Doctrine CouchDB v2.x Client
, (*1)
Simple API that wraps around CouchDBs v2.x HTTP API., (*2)
Features
- Create, Delete, List Databases
- Create, Update, Delete Documents
- Bulk API for Creating/Updating Documents
- Find Documents by ID
- Generate UUIDs
- Design Documents
- Query
_all_docs view
- Query Changes Feed
- Query Views
- Compaction Info and Triggering APIs
- Replication API
- Symfony Console Commands
- Find Documents using Mango Query
Installation
With Composer:, (*3)
{
"require": {
"doctrine/couchdb": "@dev"
}
}
Usage
Basic Operations
Covering the basic CRUD Operations for databases and documents:, (*4)
<?php
$client = \Doctrine\CouchDB\CouchDBClient::create(array('dbname' => 'doctrine_example'));
// Create a database.
$client->createDatabase($client->getDatabase());
// Create a new document.
list($id, $rev) = $client->postDocument(array('foo' => 'bar'));
// Update a existing document. This will increment the revision.
list($id, $rev) = $client->putDocument(array('foo' => 'baz'), $id, $rev);
// Fetch single document by id.
$doc = $client->findDocument($id);
// Fetch multiple documents at once.
$docs = $client->findDocuments(array($id));
// Return all documents from database (_all_docs?include_docs=true).
$allDocs = $client->allDocs();
// Delete a single document.
$client->deleteDocument($id, $rev);
// Delete a database.
$client->deleteDatabase($client->getDatabase());
//Search documents using Mango Query CouchDB v2.x
$selector = ['_id'=>['$gt'=>null]];
$options = ['limit'=>1,'skip'=>1,'use_index'=>['_design/doc','index'],'sort'=>[['_id'=>'desc']]];
$query = new \Doctrine\CouchDB\Mango\MangoQuery($selector,$options);
$docs = $client->find($query);
$query = new \Doctrine\CouchDB\Mango\MangoQuery();
$query->select(['_id', 'name'])->where(['$and'=> [
[
'name'=> [
'$eq'=> 'Under the Dome',
],
'genres'=> [
'$in'=> ['Drama','Comedy'],
],
],
])->sort([['_id'=>'desc']])->limit(1)->skip(1)->use_index(['_design/doc','index']);
$docs = $client->find($query);
Views
A simple example demonstrating how to create views and query them:, (*5)
<?php
class ArticlesDesignDocument implements \Doctrine\CouchDB\View\DesignDocument
{
public function getData()
{
return array(
'language' => 'javascript',
'views' => array(
'by_author' => array(
'map' => 'function(doc) {
if(\'article\' == doc.type) {
emit(doc.author, doc._id);
}
}',
'reduce' => '_count'
),
),
);
}
}
$client->createDesignDocument('articles', new ArticlesDesignDocument());
// Fill database with some data.
foreach (array('Alice', 'Bob', 'Bob') as $author) {
$client->postDocument(array(
'type' => 'article',
'author' => $author,
'content' => 'Lorem ipsum'
));
}
// Query all articles.
$query = $client->createViewQuery('articles', 'by_author');
$query->setReduce(false);
$query->setIncludeDocs(true);
$result = $query->execute();
foreach ($result as $row) {
$doc = $row['doc'];
echo 'Article by ', $doc['author'], ': ', $doc['content'], "\n";
}
// Article by Alice: Lorem ipsum
// Article by Bob: Lorem ipsum
// Article by Bob: Lorem ipsum
// Query all articles written by bob.
$query = $client->createViewQuery('articles', 'by_author');
$query->setKey('Bob');
// ...
// Query the _count of articles each author has written.
$query = $client->createViewQuery('articles', 'by_author');
$query->setReduce(true);
$query->setGroupLevel(1); // group_level=1 means grouping by author.
$result = $query->execute();
foreach ($result as $row) {
echo 'Author ', $row['key'], ' has written ', $row['value'], ' articles', "\n";
}
// Author Alice has written 1 articles
// Author Bob has written 2 articles
Wallogit.com
