Mongo Db - PHP Day Workshop

WORKSHOP ::: 1º PHP-DAY MongoDB: alternativa intuitiva e não-relacional ao Mysql Diego Sana

Sobre mim ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sumário ,[object Object],[object Object],[object Object],[object Object],[object Object]

Motivação ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],Porém…

[object Object],[object Object],[object Object],[object Object],RDBMS e a web …

[object Object],[object Object],[object Object],[object Object],Podemos fazer melhor: NoSQL

[object Object],[object Object],[object Object],[object Object],Exemplos: BigTable

[object Object],[object Object],[object Object],[object Object],Exemplos: Dynamo

[object Object],[object Object],[object Object],[object Object],Exemplos: Memcache

[object Object],[object Object],[object Object],[object Object],Exemplos: CouchDB

[object Object],[object Object],[object Object],[object Object],O que todos eles tem em comum

[object Object],[object Object],[object Object],Mongo DB: o melhor dos dois mundos

[object Object],[object Object],Quem faz

[object Object],[object Object],[object Object],Filosofia

[object Object],[object Object],[object Object],[object Object],Funcionalidades

[object Object],[object Object],[object Object],[object Object],[object Object],Pros

[object Object],[object Object],[object Object],[object Object],Contras

[object Object],[object Object],[object Object],[object Object],Adequado para

[object Object],[object Object],[object Object],Inadequado para

[object Object],[object Object],[object Object],[object Object],[object Object],Ei, mais eu só quero fazer o site da padaria do meu tio!!!

[object Object],[object Object],[object Object],[object Object],Modelo de dados

[object Object],[object Object],[object Object],[object Object],Databases

[object Object],[object Object],[object Object],Coleções

[object Object],[object Object],[object Object],Documentos

[object Object],[object Object],[object Object],BSON

[object Object],[object Object],[object Object],Baixando o MongoDB

[object Object],[object Object],[object Object],[object Object],[object Object],Instalação do Servidor MongoDB

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Instalação do Driver PHP

[object Object],[object Object],[object Object],Incluso com MongoDB

[object Object],[object Object],[object Object],Usando MongoDB com PHP $conn_mongodb = new Mongo(); // Assume mongod rodando em localhost:27017 (default)

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Alguns métodos básicos

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Implementando um MongoLog 

[object Object],[object Object],[object Object],Modelagem

Criando e inserindo na coleção "users" ,[object Object],[object Object],[object Object],[object Object],$doc = array("_id" => 1, "email" => "meu@email.com", "nome" => "Joaozinho", "nivel" => "admin_supremo"); $conn_mongodb->selectDB("blogs")->selectCollection("users")->save($doc);

Fazendo uma consulta ,[object Object],[object Object],[object Object],$query = array("nome" => "Joaozinho"); $cursor = $conn_mongodb->selectDB("blogs")->selectCollection("users") ->find($query) $query = array("nome" => "Joaozinho"); $fields = array("email" => true); $cursor = $conn_mongodb->selectDB("blogs")->selectCollection("users") ->find($query,$fields);

find() vs findOne() ,[object Object],[object Object],[object Object],$query = array(“_id” => “1”); $col = $conn_mongodb->selectDB("blogs")->selectCollection("users"); $cursor = $col->find($query); while($cursor->hasNext()) { $doc = $cursor->getNext(); } $query = array(“_id” => “1”); $col = $conn_mongodb->selectDB("blogs")->selectCollection("users"); $doc = $col->findOne($query);

Inserindo um post ,[object Object],[object Object],[object Object],$doc = array(“titulo” => “Titulo do meu post”, “texto” => “Aqui vai meu textículo”, “data” => new MongoDate(), “ idAutor” => 1)); $col->insert($doc); // método português: adiciona tags ao array $doc e o salva no db: $doc[“tags”] = array(“teste”,”mongodb”); $col->save($doc) // método l337: usando o “modificador” $set $query = array(“_id” => $doc[‘_id’]); $updatefields = array(‘$set’ => array(“tags” => array(“teste”,”mongodb”) )); $col->update($query,$updatefields,true);

Inserindo comentários num post ,[object Object],[object Object],[object Object],$comentario = array(“nome” => “Comentador”, “email” => “me@obriga.com” “ comentario” => “Que legal”); $query = array(“_id” => $doc[“_id”]); $updatefields = array(‘$push’ => array(“comentarios” => $comentario)); $col->update($query,$updatefields,true);

Contador de Visitas ,[object Object],[object Object],[object Object],$query = array(“_id” => $doc[“_id”]); $updatefields = array(‘$inc’ => array(“visitas” => 1)); $col->update($query,$updatefields,true); $updatefields = array(“$inc” => array(“visitas” => 2));

Lista de amigos ,[object Object],[object Object],[object Object],$col = $db->selectCollection(“friends”); $idUser = 1; $idFriend = 2; $query = array(“_id” => $idUser); $updatefields = array(‘$push’ => array(“ids” => $idFriend)); $col->update($query,$updatefields,true); $query = array(“_id” => 1); $updatefields = array(“$pull” => array(“ids” => 2)); $col->update($query,$updatefields);

Contador, paginação e ordenação ,[object Object],[object Object],[object Object],$col = $db->selectCollection(“posts”); $cursor = $col->find(); $cursor_ascendente = $cursor->sort(array(“data” => 1)); $cursor_descendente = $cursor->sort(array(“data” => -1)); $col = $db->selectCollection(“posts”); $contador = $col->count(); $cursor = $col->find(); $cursor->sort(array(“data” => -1)); $cursor->skip(2); $cursor->limit(1);

Querys usando operadores ,[object Object],[object Object],[object Object],$col = $db->selectCollection(“posts”); $query = array(“visitas” => array(‘$gt’ => 2)) $cursor = $col->find($query); $col = $db->selectCollection(“posts”); $query = array(“comentarios” => array(‘$exists’ => false)) $cursor = $col->find($query); $col = $db->selectCollection(“posts”); $query = array(“tags” => array(‘$in’ => “mongo”)) $cursor = $col->find($query);

Querys usando operadores ,[object Object],[object Object],[object Object],$col = $db->selectCollection(“posts”); $query = array(“visitas” => array(‘$gt’ => 1, ‘$lt’ => 3)) $cursor = $col->find($query); $col = $db->selectCollection(“posts”); $query = array(“comentarios” => array(‘$size’ => 2)) $cursor = $col->find($query); $col = $db->selectCollection(“posts”); $query = array(“tags” => array(‘$in’ => array(“mongo”, “teste”, “php”)) $cursor = $col->find($query);

Índices ,[object Object],[object Object],[object Object],$col = $db->selectCollection(“posts”); $col->ensureIndex(“tags”); $col = $db->selectCollection(“posts”); $col->ensureIndex(array(“data” => 1)); // índice com ordem crescente $col->ensureIndex(array(“data” => -1)); // índice com ordem decrescente $query = array(“tags” => “mongodb”); $cursor = $col->find($query); var_dump($cursor->explain());

Outras querys: remoção ,[object Object],[object Object],[object Object],[object Object],$col->remove(); $col = $db->selectCollection(“users”); $query = array(“nome” => “Joaozinho”); $col->remove($query); $db->dropCollection(“users”); $db->drop();

Outras querys: Erros ,[object Object],$doc = array(“_id” => 1); $col = $db->selectCollection(“error”); $col->insert($doc); if($error = $conn_mongodb->lastError()) { echo "Error: "; var_dump($error); }

Indo além ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mongo Db - PHP Day Workshop

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