use std::ops::Deref;
use anyhow::Result;
use surrealdb_types::{SqlFormat, ToSql};
use super::AlterKind;
use crate::catalog::providers::DatabaseProvider;
use crate::catalog::{ModuleName, Permission};
use crate::ctx::FrozenContext;
use crate::dbs::Options;
use crate::expr::Base;
use crate::iam::{Action, ResourceKind};
use crate::val::Value;
#[derive(Clone, Debug, Eq, PartialEq, Hash)]
pub(crate) struct AlterModuleStatement {
pub name: ModuleName,
pub if_exists: bool,
pub comment: AlterKind<String>,
pub permissions: Option<Permission>,
}
impl AlterModuleStatement {
#[instrument(level = "trace", name = "AlterModuleStatement::compute", skip_all)]
pub(crate) async fn compute(&self, ctx: &FrozenContext, opt: &Options) -> Result<Value> {
ctx.is_allowed(opt, Action::Edit, ResourceKind::Module, Base::Db)?;
let (_, _) = opt.ns_db()?;
let (ns, db) = ctx.expect_ns_db_ids(opt).await?;
let txn = ctx.tx();
let storage_name = self.name.get_storage_name();
let mut md = match txn.get_db_module(ns, db, &storage_name, None).await {
Ok(v) => v.deref().clone(),
Err(e) => {
if self.if_exists {
return Ok(Value::None);
}
return Err(e);
}
};
match self.comment {
AlterKind::Set(ref v) => md.comment = Some(v.clone()),
AlterKind::Drop => md.comment = None,
AlterKind::None => {}
}
if let Some(ref p) = self.permissions {
md.permissions = p.clone();
}
txn.put_db_module(ns, db, &md).await?;
txn.clear_cache();
Ok(Value::None)
}
}
impl ToSql for AlterModuleStatement {
fn fmt_sql(&self, f: &mut String, fmt: SqlFormat) {
let stmt: crate::sql::statements::alter::AlterModuleStatement = self.clone().into();
stmt.fmt_sql(f, fmt);
}
}