update()

Update all or specific records in the database.

Method Syntax
db.update(resource)

The .update() method is followed by second method that refers to the type of update to use: an update with .content(), .merge(), or .patch().

.update().content()

Updates all records in a table, or a specific record, in the database.

Method Syntax
db.update(resource).content(data)

Note

This function replaces the current document / record data with the specified data.

Arguments

Example usage

use serde::{Deserialize, Serialize};
use surrealdb::engine::remote::ws::Ws;
use surrealdb::opt::auth::Root;
use surrealdb::Surreal;

#[derive(Debug, Serialize, Deserialize, Default)]
struct Person {
    name: Option<String>,
    company: Option<String>,
    settings: Option<Settings>,
}

#[derive(Debug, Serialize, Deserialize)]
struct Settings {
    active: bool,
    marketing: bool,
}

#[derive(Debug, Serialize)]
struct Company {
    company: String,
}

#[tokio::main]
async fn main() -> surrealdb::Result<()> {
    let db = Surreal::new::<Ws>("127.0.0.1:8000").await?;

    db.signin(Root {
        username: "root",
        password: "root",
    })
    .await?;

    db.use_ns("ns").use_db("db").await?;

    db.query("CREATE person:tobie, person:jaime").await?;

    // Update all records in a table
    let people: Vec<Person> = db
        .update("person")
        .content(Company {
            company: "SurrealDB".into(),
        })
        .await?;
    dbg!(people);
    Ok(())
}

Translated query

This function will run the following query in the database:

UPDATE $resource CONTENT $data;

.update().merge()

Modifies all records in a table, or a specific record, in the database.

Method Syntax
db.update(resource).merge(data)

Note

This function merges the current document / record data with the specified data.

Arguments

Example usage

use serde::{Deserialize, Serialize};
use surrealdb::engine::remote::ws::Ws;
use surrealdb::opt::auth::Root;
use surrealdb::Surreal;

#[derive(Debug, Serialize, Deserialize, Default)]
struct Person {
    name: String,
    company: Option<String>,
    active: Option<bool>,
    marketing: Option<bool>,
}

#[derive(Debug, Serialize, Deserialize)]
struct Settings {
    active: bool,
    marketing: bool,
}

#[derive(Debug, Serialize)]
struct Company {
    company: String,
}

#[tokio::main]
async fn main() -> surrealdb::Result<()> {
    let db = Surreal::new::<Ws>("127.0.0.1:8000").await?;

    db.signin(Root {
        username: "root",
        password: "root",
    })
    .await?;

    db.use_ns("ns").use_db("db").await?;

    db.query("CREATE person:tobie SET name = 'Tobie'; CREATE person:jaime SET name = 'jaime';")
        .await?;

    // Update all records in a table
    let people: Vec<Person> = db
        .update("person")
        .merge(Company {
            company: "SurrealDB".into(),
        })
        .await?;
    dbg!(people);

    // Update a single record
    let person: Option<Person> = db
        .update(("person", "jaime"))
        .merge(Settings {
            active: true,
            marketing: true,
        })
        .await?;
    dbg!(person);
    Ok(())
}

Translated query

This function will run the following query in the database:

UPDATE $resource MERGE $data;

.update().patch()

Applies JSON Patch changes to all records, or a specific record, in the database.

Method Syntax
db.update(resource).patch(patch_op)

Note

This function patches the current document / record data with the specified JSON Patch data.

Arguments

Example usage

The .patch() method uses a struct called a PatchOp that contains the four methods add(), change(), remove(), and replace(). Each of these methods takes different arguments depending on the operation. For example, PathOp::remove() only takes a single argument (a path), while PathOp::replace() takes a second value for the replacement value.

use serde::{Deserialize, Serialize};
use surrealdb::engine::remote::ws::Ws;
use surrealdb::opt::auth::Root;
use surrealdb::opt::PatchOp;
use surrealdb::sql::Datetime;
use surrealdb::Surreal;

#[derive(Debug, Serialize, Deserialize, Default)]
struct Person {
    name: String,
    company: Option<String>,
    settings: Option<Settings>,
    created_at: Option<Datetime>,
    tags: Option<Vec<String>>,
}

#[derive(Debug, Serialize, Deserialize)]
struct Settings {
    active: bool,
}

#[tokio::main]
async fn main() -> surrealdb::Result<()> {
    let db = Surreal::new::<Ws>("127.0.0.1:8000").await?;

    db.signin(Root {
        username: "root",
        password: "root",
    })
    .await?;

    db.use_ns("ns").use_db("db").await?;

    db.query(
        "
        CREATE person:tobie SET name = 'Tobie', company = 'SurrealDB'; 
        CREATE person:jaime SET name = 'jaime', company = 'SurrealDB';",
    )
    .await?;

    // Update all records in a table
    let people: Vec<Person> = db
        .update("person")
        .patch(PatchOp::replace("/created_at", Datetime::default()))
        .await?;
    dbg!(people);

    // Update a record with a specific ID
    let person: Option<Person> = db
        .update(("person", "tobie"))
        .patch(PatchOp::replace("/settings/active", false))
        .patch(PatchOp::add("/tags", &["developer", "engineer"]))
        .patch(PatchOp::remove("/company"))
        .await?;
    dbg!(person);
    Ok(())
}

Translated query

This function will run the following query in the database:

UPDATE $resource PATCH $data;

See also

• .update() method on Docs.rs