Adding bodymass support

db/createdb.sql

@@ -11,7 +11,18 @@ create table account (
 	id serial primary key,
 	name varchar not null,
 	login varchar not null,
-	birthdate date not null
+	birthdate date not null,
+	bodymass integer,
+	constraint fk_bodymass foreign key (bodymass) references bodymass(id)
+);
+create table bodymass (
+	id serial primary key,
+	account integer not null,
+	time timestamptz not null,
+	kilos numeric(4,1) not null,
+	constraint fk_account foreign key (account) references account(id),
+	constraint unique_account_time unique (account, time),
+	constraint time_not_infty check (time <> 'infinity'::timestamptz)
 );
 create table training (
 	id serial primary key,

db/readme.md

@@ -0,0 +1,26 @@
+## Joining to bodymass table by time
+
+Data in the bodymass table can be transformed as (for account 1):
+
+```sql
+select kilos, time as start, (case when lead(time) over (order by time asc) is null then 'infinity'::timestamptz else lead(time) over (order by time asc) end) as end from bodymass where account=1;
+```
+
+Thereby giving a table with clear timespans. Joining can then be performed by a nested table:
+
+```
+with bm_report as (
+select kilos, time as start,
+     (case when lead(time) over (order by time asc) is null 
+      then 'infinity'::timestamptz 
+      else lead(time) over (order by time asc) end) as end from bodymass
+      where account=1)
+select 
+   t.time, t.exercise, t.kilos, b.kilos as bodymass, round(100*t.kilos/b.kilos, 1) as ratio
+   from training t
+   inner join bm_report b on t.time >= b.start and t.time < b.end
+   where t.account=1 and exercise=1
+   order by 1;
+```
+
+

readme.md

@@ -41,7 +41,7 @@ of unix domain socket in `/var/run/postgresql`.
 Now training can be invoked with:
 
 ```
-train squat 3 10 60
+train report squat 3 10 60
 ```
 
 Which would register squauts, 3 runs of 10 reps of 60kg -- at local time and date. Optionally a

train-cli/src/main.rs

@@ -36,8 +36,9 @@ enum Commands {
 
         /// time, either "2025-05-20T14:15:20+0200", "2025-12-24 18:00:00" or "17:15:00"
         time: Option<String>,
-    }
+    },
-
+    Latest {
+    },
 }
 
 fn main() {
@@ -45,6 +46,7 @@ fn main() {
     match &args.command {
         Commands::Report { exercise, runs, reps, kilos, time } => insert_training(exercise, runs, reps, kilos, time),
         Commands::Message { text, time } => insert_message(text, time),
+        Commands::Latest {} => get_latest(),
     }
 }
 
@@ -119,3 +121,22 @@ fn insert_training (exercise: &String, runs: &i16, reps: &i16, kilos: &f32, time
         }
      });
 }
+
+fn get_latest () {
+    let mut client = get_client();
+    let res = client.query("with report as (select distinct on (t.exercise) t.time, t.exercise, t.kilos 
+                                            from training t inner join account a on a.id=t.account where a.login=$1 order by 2, 1 desc) 
+                            select date_trunc('second', r.time), e.name, r.kilos from report r inner join exercise e on e.id=r.exercise order by 2",
+                            &[&whoami::username()]);
+    match res {
+        Ok(resultset) => {
+            for r in resultset {
+                let time : DateTime<FixedOffset> = r.get(0);
+                let exercise : String= r.get(1);
+                let kilos: Decimal = r.get(2);
+                println!("{time} {exercise:>15} {kilos:>5}", time=time, exercise=exercise, kilos=kilos);
+            }
+        },
+        Err(e) => println!("Report not fetched, since: {}", e)
+    }
+}