feat: add a server function for editing a project

src/errors/project_create_error.rs

@@ -6,12 +6,12 @@ use std::str::FromStr;
 use validator::{ValidationErrors, ValidationErrorsKind};
 
 #[derive(Serialize, Deserialize, Debug)]
-pub enum ProjectCreateError {
+pub enum ProjectError {
     TitleLengthInvalid,
     Error(Error),
 }
 
-impl From<ValidationErrors> for ErrorVec<ProjectCreateError> {
+impl From<ValidationErrors> for ErrorVec<ProjectError> {
     fn from(validation_errors: ValidationErrors) -> Self {
         validation_errors.errors()
             .iter()
@@ -21,31 +21,31 @@ impl From<ValidationErrors> for ErrorVec<ProjectCreateError> {
                         .iter()
                         .map(|validation_error| validation_error.code.as_ref())
                         .map(|code| match code {
-                            "title_length" => ProjectCreateError::TitleLengthInvalid,
+                            "title_length" => ProjectError::TitleLengthInvalid,
                             _ => panic!("Unexpected validation error code: `{code}`."),
                         })
-                        .collect::<Vec<ProjectCreateError>>(),
+                        .collect::<Vec<ProjectError>>(),
                     _ => panic!("Unexpected validation error kind."),
                 },
                 _ => panic!("Unexpected validation field name: `{field}`."),
             })
-            .collect::<Vec<ProjectCreateError>>()
+            .collect::<Vec<ProjectError>>()
             .into()
     }
 }
 
 // Has to be implemented for Dioxus server functions.
-impl Display for ProjectCreateError {
+impl Display for ProjectError {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         write!(f, "{:?}", self)
     }
 }
 
 // Has to be implemented for Dioxus server functions.
-impl FromStr for ProjectCreateError {
+impl FromStr for ProjectError {
     type Err = ();
 
     fn from_str(_: &str) -> Result<Self, Self::Err> {
-        Ok(ProjectCreateError::Error(Error::ServerInternal))
+        Ok(ProjectError::Error(Error::ServerInternal))
     }
 }

src/server/projects.rs

@@ -1,31 +1,31 @@
 use crate::errors::error::Error;
 use crate::errors::error_vec::ErrorVec;
-use crate::errors::project_create_error::ProjectCreateError;
+use crate::errors::project_create_error::ProjectError;
 use crate::models::project::{NewProject, Project};
 use crate::server::database_connection::establish_database_connection;
-use diesel::{QueryDsl, RunQueryDsl, SelectableHelper};
+use diesel::{ExpressionMethods, QueryDsl, RunQueryDsl, SelectableHelper};
 use dioxus::prelude::*;
 use validator::Validate;
 
 #[server]
 pub(crate) async fn create_project(new_project: NewProject)
-                                   -> Result<Project, ServerFnError<ErrorVec<ProjectCreateError>>> {
+                                   -> Result<Project, ServerFnError<ErrorVec<ProjectError>>> {
     use crate::schema::projects;
 
     new_project.validate()
-        .map_err::<ErrorVec<ProjectCreateError>, _>(|errors| errors.into())?;
+        .map_err::<ErrorVec<ProjectError>, _>(|errors| errors.into())?;
 
     let mut connection = establish_database_connection()
-        .map_err::<ErrorVec<ProjectCreateError>, _>(
-            |_| vec![ProjectCreateError::Error(Error::ServerInternal)].into()
+        .map_err::<ErrorVec<ProjectError>, _>(
+            |_| vec![ProjectError::Error(Error::ServerInternal)].into()
         )?;
 
     let new_project = diesel::insert_into(projects::table)
         .values(&new_project)
         .returning(Project::as_returning())
         .get_result(&mut connection)
-        .map_err::<ErrorVec<ProjectCreateError>, _>(
-            |_| vec![ProjectCreateError::Error(Error::ServerInternal)].into()
+        .map_err::<ErrorVec<ProjectError>, _>(
+            |_| vec![ProjectError::Error(Error::ServerInternal)].into()
         )?;
 
     Ok(new_project)
@@ -50,3 +50,28 @@ pub(crate) async fn get_projects()
 
     Ok(results)
 }
+
+#[server]
+pub(crate) async fn edit_project(project_id: i32, new_project: NewProject)
+    -> Result<Project, ServerFnError<ErrorVec<ProjectError>>> {
+    use crate::schema::projects::dsl::*;
+
+    new_project.validate()
+        .map_err::<ErrorVec<ProjectError>, _>(|errors| errors.into())?;
+
+    let mut connection = establish_database_connection()
+        .map_err::<ErrorVec<ProjectError>, _>(
+            |_| vec![ProjectError::Error(Error::ServerInternal)].into()
+        )?;
+
+    let updated_project = diesel::update(projects)
+        .filter(id.eq(project_id))
+        .set(title.eq(new_project.title))
+        .returning(Project::as_returning())
+        .get_result(&mut connection)
+        .map_err::<ErrorVec<ProjectError>, _>(
+            |_| vec![ProjectError::Error(Error::ServerInternal)].into()
+        )?;
+
+    Ok(updated_project)
+}