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added a find function to model

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This commit is contained in:
Chris Cochrun 2024-10-09 15:47:53 -05:00
parent 125289ace1
commit 3e1e46ce2b
5 changed files with 16 additions and 11 deletions
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6
src/rust/core/images.rs
View file

@ -45,7 +45,7 @@ mod test {
pub fn test_db_and_model() {
let mut image_model: Model<Image> = Model::default();
image_model.load_from_db();
if let Some(image) = image_model.get_item(|i| i.id == 3) {
if let Some(image) = image_model.find(|i| i.id == 3) {
let test_image = test_image("nccq5".into());
assert_eq!(test_image.title, image.title);
} else {
@ -61,10 +61,10 @@ mod test {
let new_image = test_image("A newer image".into());
match result {
Ok(_) => {
assert_eq!(&image, image_model.get_item(|i| i.id == 0).unwrap());
assert_eq!(&image, image_model.find(|i| i.id == 0).unwrap());
assert_ne!(
&new_image,
image_model.get_item(|i| i.id == 0).unwrap()
image_model.find(|i| i.id == 0).unwrap()
);
}
Err(e) => assert!(

9
src/rust/core/model.rs
View file

@ -36,11 +36,16 @@ impl<T> Model<T> {
Ok(())
}
pub fn get_item<P>(&self, f: P) -> Option<&T>
pub fn get_item(&self, index: i32) -> Option<&T>
{
self.items.get(index as usize)
}
pub fn find<P>(&self, f: P) -> Option<&T>
where
P: FnMut(&&T) -> bool,
{
self.items.iter().filter(f).next()
self.items.iter().find(f)
}
pub fn insert_item(&mut self, item: T, index: i32) -> Result<()> {

2
src/rust/core/presentations.rs
View file

@ -88,7 +88,7 @@ mod test {
let mut presentation_model: Model<Presentation> =
Model::default();
presentation_model.load_from_db();
if let Some(presentation) = presentation_model.get_item(|p| p.id == 10) {
if let Some(presentation) = presentation_model.find(|p| p.id == 54) {
let test_presentation = test_presentation();
assert_eq!(&test_presentation, presentation);
} else {

4
src/rust/core/songs.rs
View file

@ -282,7 +282,7 @@ You saved my soul"
pub fn test_db_and_model() {
let mut song_model: Model<Song> = Model::default();
song_model.load_from_db();
if let Some(song) = song_model.get_item(|s| s.id == 7) {
if let Some(song) = song_model.find(|s| s.id == 7) {
let test_song = test_song();
assert_eq!(&test_song, song);
} else {
@ -310,7 +310,7 @@ You saved my soul"
match song_model.update_item(song, 2) {
Ok(()) => assert_eq!(
&cloned_song,
song_model.get_item(|s| s.id == 7).unwrap()
song_model.find(|s| s.id == 7).unwrap()
),
Err(e) => assert!(false, "{e}"),
}

6
src/rust/core/videos.rs
View file

@ -48,7 +48,7 @@ mod test {
pub fn test_db_and_model() {
let mut video_model: Model<Video> = Model::default();
video_model.load_from_db();
if let Some(video) = video_model.get_item(|v| v.id == 3) {
if let Some(video) = video_model.find(|v| v.id == 73) {
let test_video = test_video("Getting started with Tokio. The ultimate starter guide to writing async Rust.".into());
assert_eq!(test_video.title, video.title);
} else {
@ -64,10 +64,10 @@ mod test {
let new_video = test_video("A newer video".into());
match result {
Ok(_) => {
assert_eq!(&video, video_model.get_item(|v| v.id == 0).unwrap());
assert_eq!(&video, video_model.find(|v| v.id == 0).unwrap());
assert_ne!(
&new_video,
video_model.get_item(|v| v.id == 0).unwrap()
video_model.find(|v| v.id == 0).unwrap()
);
}
Err(e) => assert!(