Modelle hinzugefügt

migrations/20240530193519_typen.up.sql

@@ -1,5 +1,5 @@
 -- Add up migration script here
-CREATE TABLE typen (
+CREATE TABLE IF NOT EXISTS typen (
   typ_id SERIAL PRIMARY KEY,
   name VARCHAR NOT NULL
 );

migrations/20240530193528_hersteller.up.sql

@@ -1,5 +1,5 @@
 -- Add up migration script here
-CREATE TABLE hersteller (
+CREATE TABLE IF NOT EXISTS hersteller (
   hersteller_id SERIAL PRIMARY KEY,
   name VARCHAR NOT NULL
 );

migrations/20240530193533_modelle.up.sql

@@ -1,9 +1,9 @@
 -- Add up migration script here
-CREATE TABLE modelle (
+CREATE TABLE IF NOT EXISTS modelle (
   modell_id SERIAL PRIMARY KEY,
   name VARCHAR NOT NULL,
   typ_id SERIAL,
   hersteller_id SERIAL,
-  CONSTRAINT fk_typ FOREIGN KEY(typ_id) REFERENCES typen(typ_id),
+  CONSTRAINT fk_typ FOREIGN KEY(typ_id) REFERENCES typen(typ_id) ON DELETE NO ACTION ON UPDATE NO ACTION,
-  CONSTRAINT fk_hersteller FOREIGN KEY (hersteller_id) REFERENCES hersteller(hersteller_id)
+  CONSTRAINT fk_hersteller FOREIGN KEY (hersteller_id) REFERENCES hersteller(hersteller_id) ON DELETE NO ACTION ON UPDATE NO ACTION
 )

src/models/mod.rs

@@ -1,4 +1,3 @@
 pub mod hersteller;
 pub mod modell;
-pub mod modell_temp;
 pub mod typ;

src/models/modell.rs

@@ -1,49 +1,56 @@
 use anyhow::Result;
-use async_graphql::SimpleObject;
+use async_graphql::{InputObject, SimpleObject};
 use serde::{Deserialize, Serialize};
 use sqlx::{FromRow, PgPool};
 
+use super::{hersteller::Hersteller, typ::Typ};
+
 #[derive(SimpleObject, FromRow, Deserialize, Serialize)]
 pub struct Modell {
     /// Die Datenbank-ID
     pub modell_id: i32,
 
-    /// Der Typ
+    /// Der Geräte-Typ z.B. Monitor
-    typ_id: i32,
+    typ: Typ,
 
-    /// Der Hersteller
+    /// Der Geräte-Hersteller z.B. Dell
-    hersteller_id: i32,
+    hersteller: Hersteller,
 
     /// Der Name eines Modells
     name: String,
 }
 
-impl Modell {
+#[derive(InputObject)]
-    pub async fn create(
+pub struct ModellCreateInput {
-        pool: &PgPool,
+    pub name: String,
-        typ_id: i32,
+    pub typ_id: i32,
-        hersteller_id: i32,
+    pub hersteller_id: i32,
-        name: &str,
-    ) -> Result<Modell> {
-        let row = sqlx::query!(
-            "INSERT INTO modelle(typ_id, hersteller_id, name) VALUES ($1, $2, $3) RETURNING modell_id",
-            typ_id,
-            hersteller_id,
-            name
-        )
-        .fetch_one(pool)
-        .await?;
-
-        Ok(Modell {
-            modell_id: row.modell_id,
-            typ_id,
-            hersteller_id,
-            name: name.to_string(),
-        })
 }
 
+#[derive(InputObject)]
+pub struct ModellUpdateInput {
+    pub modell_id: i32,
+    pub name: Option<String>,
+    pub typ_id: Option<i32>,
+    pub hersteller_id: Option<i32>,
+}
+
+impl Modell {
     pub async fn read_one(pool: &PgPool, id: &i32) -> Result<Modell> {
-        let row = sqlx::query_as!(Modell, "SELECT * FROM modelle WHERE modell_id = $1", id)
+        let row = sqlx::query_as!(
+            Modell,
+            r#"
+             select
+               m.modell_id, m.name,
+               (t.typ_id, t.name) as "typ!: Typ",
+               (h.hersteller_id, h.name) as "hersteller!: Hersteller"
+             from modelle as m
+             join typen as t using(typ_id)
+             join hersteller as h using(hersteller_id)
+             where m.modell_id = $1;
+         "#,
+            id
+        )
         .fetch_one(pool)
         .await?;
 
@@ -51,31 +58,55 @@ impl Modell {
     }
 
     pub async fn read_all(pool: &PgPool) -> Result<Vec<Modell>> {
-        let rows = sqlx::query_as!(
+        let row = sqlx::query_as!(
             Modell,
-            "SELECT modell_id, name, hersteller_id, typ_id FROM modelle"
+            r#"
+             select
+                m.modell_id, m.name,
+                (t.typ_id, t.name) as "typ!: Typ",
+               (h.hersteller_id, h.name) as "hersteller!: Hersteller"
+             from modelle as m
+             join typen as t using(typ_id)
+             join hersteller as h using(hersteller_id)
+         "#
         )
         .fetch_all(pool)
         .await?;
 
-        Ok(rows)
+        Ok(row)
     }
 
-    pub async fn update(pool: &PgPool, id: &i32, name: &str) -> Result<Modell> {
+    pub async fn create(pool: &PgPool, input: &ModellCreateInput) -> Result<Modell> {
-        sqlx::query!("UPDATE modelle SET name=$1 WHERE modell_id = $2", name, id)
+        let row = sqlx::query!(r#"INSERT INTO modelle(typ_id, hersteller_id, name) VALUES ($1, $2, $3) RETURNING modell_id"#, input.typ_id, input.hersteller_id, input.name
+        )
+        .fetch_one(pool)
+        .await?;
+
+        Self::read_one(pool, &row.modell_id).await
+    }
+
+    pub async fn update(pool: &PgPool, input: &ModellUpdateInput) -> Result<Modell> {
+        sqlx::query!(
+            "UPDATE modelle SET name=COALESCE($1, name), typ_id=COALESCE($2, typ_id), hersteller_id=COALESCE($3, hersteller_id) WHERE modell_id = $4",
+            input.name,
+            input.typ_id,
+            input.hersteller_id,
+            input.modell_id
+        )
         .execute(pool)
         .await?;
 
-        let t = Modell::read_one(pool, id).await?;
+        let t = Modell::read_one(pool, &input.modell_id).await?;
 
         Ok(t)
     }
 
     pub async fn delete(pool: &PgPool, id: &i32) -> Result<()> {
-        sqlx::query!("DELETE FROM modelle WHERE modell_id = $1", id)
+        let result = sqlx::query!("DELETE FROM modelle WHERE modell_id = $1", id)
             .execute(pool)
             .await?;
 
+        println!("{:#?}", result);
         Ok(())
     }
 }

src/models/modell_temp.rs

@@ -1,44 +0,0 @@
-use anyhow::Result;
-use async_graphql::SimpleObject;
-use serde::{Deserialize, Serialize};
-use sqlx::{FromRow, PgPool};
-
-use super::{hersteller::Hersteller, typ::Typ};
-
-#[derive(SimpleObject, Debug, FromRow, Deserialize, Serialize)]
-pub struct ModellTemp {
-    /// Die Datenbank-ID
-    pub modell_id: i32,
-
-    /// Der Typ
-    pub typ: Typ,
-
-    /// Der Hersteller
-    pub hersteller: Hersteller,
-
-    /// Der Name eines Modells
-    pub name: String,
-}
-
-impl ModellTemp {
-    pub async fn read_one(pool: &PgPool, id: &i32) -> Result<ModellTemp> {
-        let row = sqlx::query_as!(
-            ModellTemp,
-            r#"
-             select
-               m.modell_id, m.name,
-               (t.typ_id, t.name) as "typ!: Typ",
-               (h.hersteller_id, h.name) as "hersteller!: Hersteller"
-             from modelle as m
-             join typen as t using(typ_id)
-             join hersteller as h using(hersteller_id)
-             where m.modell_id = $1;
-         "#,
-            id
-        )
-        .fetch_one(pool)
-        .await?;
-
-        Ok(row)
-    }
-}

src/models/typ.rs

@@ -7,7 +7,7 @@ use sqlx::{FromRow, PgPool, Type};
 pub struct Typ {
     pub typ_id: i32,
 
-    /// Der Name eines Typs
+    /// Name eines Typs
     pub name: String,
 }
 

src/mutations/mod.rs

@@ -1,7 +1,11 @@
 pub mod hersteller;
+pub mod modell;
 pub mod typ;
-
 use async_graphql::MergedObject;
 
 #[derive(MergedObject, Default)]
-pub struct Mutation(typ::TypMutation, hersteller::HerstellerMutation);
+pub struct Mutation(
+    typ::TypMutation,
+    hersteller::HerstellerMutation,
+    modell::ModellMutation,
+);

src/mutations/modell.rs

@@ -0,0 +1,35 @@
+use crate::models::modell::*;
+use async_graphql::{Context, FieldResult};
+use sqlx::postgres::PgPool;
+
+#[derive(Default)]
+pub struct ModellMutation;
+
+#[async_graphql::Object]
+impl ModellMutation {
+    async fn create_modell(
+        &self,
+        ctx: &Context<'_>,
+        modell: ModellCreateInput,
+    ) -> FieldResult<Modell> {
+        let pool = ctx.data::<PgPool>()?;
+        let row = Modell::create(pool, &modell).await?;
+        Ok(row)
+    }
+
+    async fn update_modell(
+        &self,
+        ctx: &Context<'_>,
+        modell: ModellUpdateInput,
+    ) -> FieldResult<Modell> {
+        let pool = ctx.data::<PgPool>()?;
+        let row = Modell::update(pool, &modell).await?;
+        Ok(row)
+    }
+    async fn delete_typ(&self, ctx: &Context<'_>, id: i32) -> FieldResult<bool> {
+        let pool = ctx.data::<PgPool>()?;
+
+        Modell::delete(pool, &id).await?;
+        Ok(true)
+    }
+}

src/queries/mod.rs

@@ -1,6 +1,5 @@
 pub mod hersteller;
 pub mod modell;
-pub mod modell_temp;
 pub mod typ;
 
 use async_graphql::MergedObject;
@@ -9,6 +8,5 @@ use async_graphql::MergedObject;
 pub struct Query(
     typ::TypQuery,
     modell::ModellQuery,
-    modell_temp::ModellTempQuery,
     hersteller::HerstellerQuery,
 );

src/queries/modell.rs

@@ -10,25 +10,16 @@ pub struct ModellQuery {
 
 #[Object(extends)]
 impl ModellQuery {
-    // #[graphql(external)]
-    // async fn id(&self) -> &i32 {
-    //     &self.id
-    // }
-
-    async fn modelle<'a>(&self, ctx: &'a Context<'_>) -> FieldResult<Vec<Modell>> {
-        let pool = ctx.data::<PgPool>()?;
-        let rows = Modell::read_all(pool).await?;
-        Ok(rows)
-    }
-
     async fn modell<'a>(&self, ctx: &'a Context<'_>, id: i32) -> FieldResult<Modell> {
         let pool = ctx.data::<PgPool>()?;
         let row = Modell::read_one(pool, &id).await?;
         Ok(row)
     }
 
-    // #[graphql(entity)]
+    async fn modelle<'a>(&self, ctx: &'a Context<'_>) -> FieldResult<Vec<Modell>> {
-    // async fn find_modell_by_id(&self, id: i32) -> Modell {
+        let pool = ctx.data::<PgPool>()?;
-    //     Modell { id }
+        let output = Modell::read_all(pool).await?;
-    // }
+
+        Ok(output)
+    }
 }

src/queries/modell_temp.rs

@@ -1,22 +0,0 @@
-use async_graphql::{Context, FieldResult, Object};
-use sqlx::postgres::PgPool;
-
-use crate::models::modell_temp::ModellTemp;
-
-#[derive(Default)]
-pub struct ModellTempQuery {}
-
-#[Object(extends)]
-impl ModellTempQuery {
-    // async fn modelle<'a>(&self, ctx: &'a Context<'_>) -> FieldResult<Vec<ModellTemp>> {
-    //     let pool = ctx.data::<PgPool>()?;
-    //     let rows = ModellTemp::read_all(pool).await?;
-    //     Ok(rows)
-    // }
-
-    async fn modell_temp<'a>(&self, ctx: &'a Context<'_>, id: i32) -> FieldResult<ModellTemp> {
-        let pool = ctx.data::<PgPool>()?;
-        let row = ModellTemp::read_one(pool, &id).await?;
-        Ok(row)
-    }
-}