[pdm-devel] [PATCH datacenter-manager v4 01/10] pdm-api-types: resources: add helper methods for fields

[Wolfgang Bumiller]

On Wed, Sep 03, 2025 at 09:38:22AM +0200, Dominik Csapak wrote:
> 
> 
> On 9/2/25 4:29 PM, Wolfgang Bumiller wrote:
> > On Thu, Aug 28, 2025 at 03:16:00PM +0200, Dominik Csapak wrote:
> > > namely 'resource_type' and 'status'. All resources have those fields
> > > in one way or another, so adding a helper that one does not have to
> > > use `match` on every call site makes code there shorter.
> > > 
> > > Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
> > > ---
> > > no changes in v4
> > >   lib/pdm-api-types/src/resource.rs | 27 +++++++++++++++++++++++++++
> > >   1 file changed, 27 insertions(+)
> > > 
> > > diff --git a/lib/pdm-api-types/src/resource.rs b/lib/pdm-api-types/src/resource.rs
> > > index 6227855..0dfadd5 100644
> > > --- a/lib/pdm-api-types/src/resource.rs
> > > +++ b/lib/pdm-api-types/src/resource.rs
> > > @@ -62,6 +62,33 @@ impl Resource {
> > >               Resource::PbsDatastore(r) => r.name.as_str(),
> > >           }
> > >       }
> > > +
> > > +    pub fn resource_type(&self) -> &str {
> > 
> > ^ This may be nicer as simple `enum` with a `Display`/`FromStr`
> > implementation.
> > 
> 
> mhmm the only use i have of that currently would it make harder to use with
> a separate enum
> (also we'd copy the type with `to_string()` once more)
> 
> e.g. i use
> 
> `resource.resource_type().starts_with(...)`
> 
> with a separate enum it would be
> 
> `resource.resource_type().to_string().starts_with(...)`
> 
> which is more to write and one string copy extra...

The enum would just have a `fn as_str(&self) -> &'static str`...

(Btw. many of these could probably be explicitly `'static`)

But it's not that important for now...

> 
> > > +        match self {
> > > +            Resource::PveStorage(_) => "storage",
> > > +            Resource::PveQemu(_) => "qemu",
> > > +            Resource::PveLxc(_) => "lxc",
> > > +            Resource::PveNode(_) | Resource::PbsNode(_) => "node",
> > > +            Resource::PbsDatastore(_) => "datastore",
> > > +        }
> > > +    }
> > > +
> > > +    pub fn status(&self) -> &str {
> > > +        match self {
> > > +            Resource::PveStorage(r) => r.status.as_str(),
> > > +            Resource::PveQemu(r) => r.status.as_str(),
> > > +            Resource::PveLxc(r) => r.status.as_str(),
> > > +            Resource::PveNode(r) => r.status.as_str(),
> > > +            Resource::PbsNode(r) => {
> > > +                if r.uptime > 0 {
> > > +                    "online"
> > > +                } else {
> > > +                    "offline"
> > > +                }
> > > +            }
> > > +            Resource::PbsDatastore(_) => "online",
> > > +        }
> > > +    }
> > >   }
> > >   #[api(
> > > -- 
> > > 2.47.2
>