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Merge remote-tracking branch 'refs/remotes/origin/reboot-20201004' into reboot-20201004 

This code now uses the ParentId/NoteId dichotomy supported with
Shrinkwrap.  It's actually very nice.

* refs/remotes/origin/reboot-20201004:
  FEAT: Move note now works.
This commit is contained in:
Elf M. Sternberg 2020-10-12 20:53:59 -07:00
parent bb841c7769 1c0f3abd6c
commit 7639d1a6f2
5 changed files with 307 additions and 461 deletions
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366
server/nm-store/src/#store.rs#
View File

@ -1,366 +0,0 @@
use crate::errors::NoteStoreError;
use crate::row_structs::{
JustId, JustSlugs, NewNote, NewNoteBuilder, NewPage, NewPageBuilder, RawNote, RawPage,
};
use friendly_id;
use lazy_static::lazy_static;
use regex::Regex;
use shrinkwraprs::Shrinkwrap;
use slug::slugify;
use sqlx;
use sqlx::{
sqlite::{Sqlite, SqlitePool},
Executor,
};
use std::sync::Arc;
#[derive(Shrinkwrap, Copy, Clone)]
struct ParentId(i64);
#[derive(Shrinkwrap, Copy, Clone)]
struct NoteId(i64);
/// A handle to our Sqlite database.
#[derive(Clone, Debug)]
pub struct NoteStore(Arc<SqlitePool>);
type NoteResult<T> = core::result::Result<T, NoteStoreError>;
type SqlResult<T> = sqlx::Result<T>;
impl NoteStore {
pub async fn new(url: &str) -> NoteResult<Self> {
let pool = SqlitePool::connect(url).await?;
Ok(NoteStore(Arc::new(pool)))
}
// Erase all the data in the database and restore it
// to its original empty form. Do not use unless you
// really, really want that to happen.
pub async fn reset_database(&self) -> NoteResult<()> {
reset_database(&*self.0)
.await
.map_err(NoteStoreError::DBError)
}
/// Fetch page by slug
///
/// Supports the use case of the user navigating to a known place
/// via a bookmark or other URL. Since the title isn't clear from
/// the slug, the slug is insufficient to generate a new page, so
/// this use case says that in the event of a failure to find the
/// requested page, return a basic NotFound.
pub async fn get_page_by_slug(&self, slug: &str) -> NoteResult<(RawPage, Vec<RawNote>)> {
// let select_note_collection_for_root = include_str!("sql/select_note_collection_for_root.sql");
let mut tx = self.0.begin().await?;
let page = select_page_by_slug(&mut tx, slug).await?;
// let notes = sqlx::query_as(select_note_collection_for_root)
// .bind(page.note_id)
// .fetch(&tx)
// .await?;
tx.commit().await?;
Ok((page, vec![]))
}
/// Fetch page by title
///
/// Supports the use case of the user navigating to a page via
/// the page's formal title. Since the title is the key reference
/// of the system, if no page with that title is found, a page with
/// that title is generated automatically.
pub async fn get_page_by_title(&self, title: &str) -> NoteResult<(RawPage, Vec<RawNote>)> {
let mut tx = self.0.begin().await?;
let (page, notes) = match select_page_by_title(&mut tx, title).await {
Ok(page) => {
let note_id = page.note_id;
(
page,
select_note_collection_from_root(&mut tx, note_id).await?,
)
}
Err(sqlx::Error::RowNotFound) => {
let page = {
let new_root_note = create_unique_root_note();
let new_root_note_id = insert_one_new_note(&mut tx, &new_root_note).await?;
let new_page_slug = generate_slug(&mut tx, title).await?;
let new_page = create_new_page_for(&title, &new_page_slug, new_root_note_id);
let _ = insert_one_new_page(&mut tx, &new_page).await?;
select_page_by_title(&mut tx, &title).await?
};
let note_id = page.note_id;
(
page,
select_note_collection_from_root(&mut tx, note_id).await?,
)
}
Err(e) => return Err(NoteStoreError::DBError(e)),
};
tx.commit().await?;
Ok((page, notes))
}
/// Insert a new note at the requested position under a parent note.
pub async fn insert_nested_note(
&self,
note: NewNote,
parent_note_uuid: &str,
position: i32,
) -> NoteResult<String> {
let mut new_note = note.clone();
new_note.uuid = friendly_id::create();
let mut tx = self.0.begin().await?;
let parent_id = select_note_id_for_uuid(&mut tx, parent_note_uuid).await?;
let new_note_id = insert_one_new_note(&mut tx, &new_note).await?;
let _ = make_room_for_new_note(&mut tx, parent_id, position).await?;
let _ = insert_note_note_relationship(&mut tx, parent_id, new_note_id, position).await?;
tx.commit().await?;
Ok(new_note.uuid)
}
pub async fn move_note(&self, note_uuid: &str, old_parent_note_uuid: &str, new_parent_note_uuid: &str, new_position: &str) -> NoteResult<()> {
// Get IDs of all things.
// Delete old note/parent relationship and tighten order
// Create new order under new parent
// Insert new note/parent relationship
todo!();
}
}
// ___ _ _
// | _ \_ _(_)_ ____ _| |_ ___
// | _/ '_| \ V / _` | _/ -_)
// |_| |_| |_|\_/\__,_|\__\___|
//
// I'm putting a lot of faith in Rust's ability to inline stuff. I'm
// sure this is okay. But really, this lets the API be clean and
// coherent and easily readable, and hides away the gnarliness of some
// of the SQL queries.
async fn reset_database<'a, E>(executor: E) -> SqlResult<()>
where
E: Executor<'a, Database = Sqlite>,
{
let initialize_sql = include_str!("sql/initialize_database.sql");
sqlx::query(initialize_sql)
.execute(executor)
.await
.map(|_| ())
}
async fn select_page_by_slug<'a, E>(executor: E, slug: &str) -> SqlResult<RawPage>
where
E: Executor<'a, Database = Sqlite>,
{
let select_one_page_by_slug_sql = concat!(
"SELECT id, title, slug, note_id, creation_date, updated_date, ",
"lastview_date, deleted_date FROM pages WHERE slug=?;"
);
Ok(sqlx::query_as(&select_one_page_by_slug_sql)
.bind(&slug)
.fetch_one(executor)
.await?)
}
async fn select_page_by_title<'a, E>(executor: E, title: &str) -> SqlResult<RawPage>
where
E: Executor<'a, Database = Sqlite>,
{
let select_one_page_by_title_sql = concat!(
"SELECT id, title, slug, note_id, creation_date, updated_date, ",
"lastview_date, deleted_date FROM pages WHERE title=?;"
);
Ok(sqlx::query_as(&select_one_page_by_title_sql)
.bind(&title)
.fetch_one(executor)
.await?)
}
async fn select_note_id_for_uuid<'a, E>(executor: E, uuid: &str) -> SqlResult<ParentId>
where
E: Executor<'a, Database = Sqlite>,
{
let select_note_id_for_uuid_sql = "SELECT id FROM notes WHERE uuid = ?";
let id: JustId = sqlx::query_as(&select_note_id_for_uuid_sql)
.bind(&uuid)
.fetch_one(executor)
.await?;
Ok(ParentId(id.id))
}
async fn make_room_for_new_note<'a, E>(
executor: E,
parent_id: ParentId,
position: i32,
) -> SqlResult<()>
where
E: Executor<'a, Database = Sqlite>,
{
let make_room_for_new_note_sql = concat!(
"UPDATE note_relationships ",
"SET position = position + 1 ",
"WHERE position >= ? and parent_id = ?;"
);
sqlx::query(make_room_for_new_note_sql)
.bind(&position)
.bind(&*parent_id)
.execute(executor)
.await
.map(|_| ())
}
async fn insert_note_note_relationship<'a, E>(
executor: E,
parent_id: ParentId,
note_id: NoteId,
position: i32,
) -> SqlResult<()>
where
E: Executor<'a, Database = Sqlite>,
{
let insert_note_note_relationship_sql = concat!(
"INSERT INTO note_relationships (parent_id, note_id, position, nature) ",
"values (?, ?, ?, ?)"
);
sqlx::query(insert_note_note_relationship_sql)
.bind(&*parent_id)
.bind(&*note_id)
.bind(&position)
.bind("note")
.execute(executor)
.await
.map(|_| ())
}
async fn select_note_collection_from_root<'a, E>(executor: E, root: i64) -> SqlResult<Vec<RawNote>>
where
E: Executor<'a, Database = Sqlite>,
{
let select_note_collection_from_root_sql =
include_str!("sql/select_note_collection_from_root.sql");
Ok(sqlx::query_as(&select_note_collection_from_root_sql)
.bind(&root)
.fetch_all(executor)
.await?)
}
async fn insert_one_new_note<'a, E>(executor: E, note: &NewNote) -> SqlResult<NoteId>
where
E: Executor<'a, Database = Sqlite>,
{
let insert_one_note_sql = concat!(
"INSERT INTO notes ( ",
" uuid, ",
" content, ",
" notetype, ",
" creation_date, ",
" updated_date, ",
" lastview_date) ",
"VALUES (?, ?, ?, ?, ?, ?);"
);
Ok(NoteId(
sqlx::query(insert_one_note_sql)
.bind(&note.uuid)
.bind(&note.content)
.bind(&note.notetype)
.bind(&note.creation_date)
.bind(&note.updated_date)
.bind(&note.lastview_date)
.execute(executor)
.await?
.last_insert_rowid(),
))
}
fn find_maximal_slug(slugs: &Vec<JustSlugs>) -> Option<u32> {
lazy_static! {
static ref RE_CAP_NUM: Regex = Regex::new(r"-(\d+)$").unwrap();
}
if slugs.len() == 0 {
return None;
}
let mut slug_counters: Vec<u32> = slugs
.iter()
.filter_map(|slug| RE_CAP_NUM.captures(&slug.slug))
.map(|cap| cap.get(1).unwrap().as_str().parse::<u32>().unwrap())
.collect();
slug_counters.sort_unstable();
slug_counters.pop()
}
// Given an initial string and an existing collection of slugs,
// generate a new slug that does not conflict with the current
// collection.
async fn generate_slug<'a, E>(executor: E, title: &str) -> SqlResult<String>
where
E: Executor<'a, Database = Sqlite>,
{
lazy_static! {
static ref RE_STRIP_NUM: Regex = Regex::new(r"-\d+$").unwrap();
}
let initial_slug = slugify(title);
let sample_slug = RE_STRIP_NUM.replace_all(&initial_slug, "");
let slug_finder_sql = "SELECT slug FROM pages WHERE slug LIKE '?%';";
let similar_slugs: Vec<JustSlugs> = sqlx::query_as(&slug_finder_sql)
.bind(&*sample_slug)
.fetch_all(executor)
.await?;
let maximal_slug = find_maximal_slug(&similar_slugs);
match maximal_slug {
None => Ok(initial_slug),
Some(max_slug) => Ok(format!("{}-{}", initial_slug, max_slug + 1)),
}
}
async fn insert_one_new_page<'a, E>(executor: E, page: &NewPage) -> SqlResult<i64>
where
E: Executor<'a, Database = Sqlite>,
{
let insert_one_page_sql = concat!(
"INSERT INTO pages ( ",
" slug, ",
" title, ",
" note_id, ",
" creation_date, ",
" updated_date, ",
" lastview_date) ",
"VALUES (?, ?, ?, ?, ?, ?);"
);
Ok(sqlx::query(insert_one_page_sql)
.bind(&page.slug)
.bind(&page.title)
.bind(&page.note_id)
.bind(&page.creation_date)
.bind(&page.updated_date)
.bind(&page.lastview_date)
.execute(executor)
.await?
.last_insert_rowid())
}
fn create_unique_root_note() -> NewNote {
NewNoteBuilder::default()
.uuid(friendly_id::create())
.content("".to_string())
.notetype("root".to_string())
.build()
.unwrap()
}
fn create_new_page_for(title: &str, slug: &str, note_id: NoteId) -> NewPage {
NewPageBuilder::default()
.slug(slug.to_string())
.title(title.to_string())
.note_id(*note_id)
.build()
.unwrap()
}

1
server/nm-store/src/.#store.rs
View File

@ -1 +0,0 @@
elf@elsa.12937:1599450965

69
server/nm-store/src/lib.rs
View File

@ -38,25 +38,70 @@ mod tests {
#[tokio::test(threaded_scheduler)] #[tokio::test(threaded_scheduler)]
async fn fetching_unfound_page_by_title_works() { async fn fetching_unfound_page_by_title_works() {
let title = "Nonexistent Page"; let title = "Nonexistent Page";
let _now = chrono::Utc::now(); let now = chrono::Utc::now();
let storagepool = fresh_inmemory_database().await; let storagepool = fresh_inmemory_database().await;
let newpageresult = storagepool.get_page_by_title(&title).await; let newpageresult = storagepool.get_page_by_title(&title).await;
assert!(newpageresult.is_ok(), "{:?}", newpageresult); assert!(newpageresult.is_ok(), "{:?}", newpageresult);
let (newpage, _newnotes) = newpageresult.unwrap(); let (newpage, newnotes) = newpageresult.unwrap();
assert_eq!(newpage.title, title, "{:?}", newpage.title); assert_eq!(newpage.title, title, "{:?}", newpage.title);
assert_eq!(newpage.slug, "nonexistent-page"); assert_eq!(newpage.slug, "nonexistent-page");
assert_eq!(newnotes.len(), 1);
assert_eq!(newnotes[0].notetype, "root");
assert_eq!(newpage.note_id, newnotes[0].id);
assert!((newpage.creation_date - now).num_minutes() < 1);
assert!((newpage.updated_date - now).num_minutes() < 1);
assert!((newpage.lastview_date - now).num_minutes() < 1);
assert!(newpage.deleted_date.is_none());
} }
// // TODO: This should be 1, not 0 fn make_new_note(content: &str) -> row_structs::NewNote {
// assert_eq!(newnotes.len(), 0); row_structs::NewNoteBuilder::default()
// // assert_eq!(newnotes[0].notetype, "root"); .content(content.to_string())
// // assert_eq!(newpage.note_id, newnotes[0].id); .build()
// .unwrap()
// assert!((newpage.creation_date - now).num_minutes() < 1.0); }
// assert!((newpage.updated_date - now).num_minutes() < 1.0);
// assert!((newpage.lastview_date - now).num_minutes() < 1.0); #[tokio::test(threaded_scheduler)]
// assert!(newpage.deleted_date.is_none()); async fn can_nest_notes() {
// } let title = "Nonexistent Page";
let storagepool = fresh_inmemory_database().await;
let newpageresult = storagepool.get_page_by_title(&title).await;
let (_newpage, newnotes) = newpageresult.unwrap();
let root = &newnotes[0];
let note1 = make_new_note("1");
let note1_uuid = storagepool.insert_nested_note(&note1, &root.uuid, 0).await;
assert!(note1_uuid.is_ok(), "{:?}", note1_uuid);
let note1_uuid = note1_uuid.unwrap();
let note2 = make_new_note("2");
let note2_uuid = storagepool.insert_nested_note(&note2, &root.uuid, 0).await;
assert!(note2_uuid.is_ok(), "{:?}", note2_uuid);
let note2_uuid = note2_uuid.unwrap();
let note3 = make_new_note("3");
let note3_uuid = storagepool.insert_nested_note(&note3, &note1_uuid, 0).await;
assert!(note3_uuid.is_ok(), "{:?}", note3_uuid);
let note3_uuid = note3_uuid.unwrap();
let note4 = make_new_note("4");
let note4_uuid = storagepool.insert_nested_note(&note4, &note2_uuid, 0).await;
assert!(note4_uuid.is_ok(), "{:?}", note4_uuid);
let note4_uuid = note4_uuid.unwrap();
let newpageresult = storagepool.get_page_by_title(&title).await;
let (newpage, newnotes) = newpageresult.unwrap();
assert_eq!(newpage.title, title, "{:?}", newpage.title);
assert_eq!(newpage.slug, "nonexistent-page");
assert_eq!(newnotes.len(), 5);
assert_eq!(newnotes[0].notetype, "root");
assert_eq!(newpage.note_id, newnotes[0].id);
}
} }

9
server/nm-store/src/row_structs.rs
View File

@ -47,6 +47,7 @@ pub struct NewPage {
#[derive(Clone, Serialize, Deserialize, Debug, Builder)] #[derive(Clone, Serialize, Deserialize, Debug, Builder)]
pub struct NewNote { pub struct NewNote {
#[builder(default = r#""".to_string()"#)]
pub uuid: String, pub uuid: String,
pub content: String, pub content: String,
#[builder(default = r#""note".to_string()"#)] #[builder(default = r#""note".to_string()"#)]
@ -76,6 +77,14 @@ pub(crate) struct JustId {
pub id: i64, pub id: i64,
} }
#[derive(Clone, Serialize, Deserialize, Debug, FromRow)]
pub(crate) struct NoteRelationship {
pub parent_id: i64,
pub note_id: i64,
pub position: i64,
pub nature: String,
}
#[cfg(test)] #[cfg(test)]
mod tests { mod tests {
use super::*; use super::*;

193
server/nm-store/src/store.rs
View File

@ -1,6 +1,7 @@
use crate::errors::NoteStoreError; use crate::errors::NoteStoreError;
use crate::row_structs::{ use crate::row_structs::{
JustId, JustSlugs, NewNote, NewNoteBuilder, NewPage, NewPageBuilder, RawNote, RawPage, JustId, JustSlugs, NewNote, NewNoteBuilder, NewPage, NewPageBuilder, NoteRelationship, RawNote,
RawPage,
}; };
use friendly_id; use friendly_id;
use lazy_static::lazy_static; use lazy_static::lazy_static;
@ -9,9 +10,10 @@ use shrinkwraprs::Shrinkwrap;
use slug::slugify; use slug::slugify;
use sqlx; use sqlx;
use sqlx::{ use sqlx::{
sqlite::{Sqlite, SqlitePool}, sqlite::{Sqlite, SqlitePool, SqliteRow},
Executor, Done, Executor, Row,
}; };
use std::collections::HashMap;
use std::sync::Arc; use std::sync::Arc;
#[derive(Shrinkwrap, Copy, Clone)] #[derive(Shrinkwrap, Copy, Clone)]
@ -53,12 +55,10 @@ impl NoteStore {
// let select_note_collection_for_root = include_str!("sql/select_note_collection_for_root.sql"); // let select_note_collection_for_root = include_str!("sql/select_note_collection_for_root.sql");
let mut tx = self.0.begin().await?; let mut tx = self.0.begin().await?;
let page = select_page_by_slug(&mut tx, slug).await?; let page = select_page_by_slug(&mut tx, slug).await?;
// let notes = sqlx::query_as(select_note_collection_for_root) let note_id = page.note_id;
// .bind(page.note_id) let notes = select_note_collection_from_root(&mut tx, note_id).await?;
// .fetch(&tx)
// .await?;
tx.commit().await?; tx.commit().await?;
Ok((page, vec![])) Ok((page, notes))
} }
/// Fetch page by title /// Fetch page by title
@ -98,12 +98,13 @@ impl NoteStore {
Ok((page, notes)) Ok((page, notes))
} }
/// Insert a new note at the requested position under a parent note. // TODO: Make sure the position is sane.
/// Insert a note as the child of an existing note, at a set position.
pub async fn insert_nested_note( pub async fn insert_nested_note(
&self, &self,
note: NewNote, note: &NewNote,
parent_note_uuid: &str, parent_note_uuid: &str,
position: i32, position: i64,
) -> NoteResult<String> { ) -> NoteResult<String> {
let mut new_note = note.clone(); let mut new_note = note.clone();
new_note.uuid = friendly_id::create(); new_note.uuid = friendly_id::create();
@ -115,8 +116,67 @@ impl NoteStore {
tx.commit().await?; tx.commit().await?;
Ok(new_note.uuid) Ok(new_note.uuid)
} }
}
// TODO: Make sure the new position is sane.
/// Move a note from one location to another.
pub async fn move_note(
&self,
note_uuid: &str,
old_parent_uuid: &str,
new_parent_uuid: &str,
new_position: i64,
) -> NoteResult<()> {
let sample = vec![note_uuid, old_parent_uuid, new_parent_uuid];
let mut tx = self.0.begin().await?;
// This is one of the few cases where we we're getting IDs for
// notes, but the nature of the ID isn't known at this time.
// This has to be handled manually, in the next paragraph
// below.
let found_id_vec = bulk_select_ids_for_note_uuids(&mut tx, &sample).await?;
let found_ids: HashMap<String, i64> = found_id_vec.into_iter().collect();
if found_ids.len() != 3 {
return Err(NoteStoreError::NotFound);
}
let old_parent_id = ParentId(*found_ids.get(old_parent_uuid).unwrap());
let new_parent_id = ParentId(*found_ids.get(new_parent_uuid).unwrap());
let note_id = NoteId(*found_ids.get(note_uuid).unwrap());
let old_note_position = get_note_note_relationship(&mut tx, old_parent_id, note_id)
.await?
.position;
let _ = delete_note_note_relationship(&mut tx, old_parent_id, note_id).await?;
let _ = close_hole_for_deleted_note(&mut tx, old_parent_id, old_note_position).await?;
let _ = make_room_for_new_note(&mut tx, new_parent_id, new_position).await?;
let _ =
insert_note_note_relationship(&mut tx, new_parent_id, note_id, new_position).await?;
tx.commit().await?;
Ok(())
}
/// Embed or reference a note from a different location.
pub async fn reference_or_embed_note(
&self,
note_uuid: &str,
new_parent_uuid: &str,
new_position: i64,
new_nature: &str,
) -> NoteResult<()> {
todo!()
}
/// Delete a note
pub async fn delete_note(&self, note_uuid: &str, note_parent_uuid: &str) -> NoteResult<()> {
todo!()
}
/// Update a note's content
pub async fn update_note_content(&self, note_uuid: &str, content: &str) -> NoteResult<()> {
todo!()
}
}
// ___ _ _ // ___ _ _
// | _ \_ _(_)_ ____ _| |_ ___ // | _ \_ _(_)_ ____ _| |_ ___
// | _/ '_| \ V / _` | _/ -_) // | _/ '_| \ V / _` | _/ -_)
@ -182,7 +242,7 @@ where
async fn make_room_for_new_note<'a, E>( async fn make_room_for_new_note<'a, E>(
executor: E, executor: E,
parent_id: ParentId, parent_id: ParentId,
position: i32, position: i64,
) -> SqlResult<()> ) -> SqlResult<()>
where where
E: Executor<'a, Database = Sqlite>, E: Executor<'a, Database = Sqlite>,
@ -205,7 +265,7 @@ async fn insert_note_note_relationship<'a, E>(
executor: E, executor: E,
parent_id: ParentId, parent_id: ParentId,
note_id: NoteId, note_id: NoteId,
position: i32, position: i64,
) -> SqlResult<()> ) -> SqlResult<()>
where where
E: Executor<'a, Database = Sqlite>, E: Executor<'a, Database = Sqlite>,
@ -309,7 +369,7 @@ where
} }
} }
async fn insert_one_new_page<'a, E>(executor: E, page: &NewPage) -> SqlResult<i64> async fn insert_one_new_page<'a, E>(executor: E, page: &NewPage) -> SqlResult<NoteId>
where where
E: Executor<'a, Database = Sqlite>, E: Executor<'a, Database = Sqlite>,
{ {
@ -324,7 +384,8 @@ where
"VALUES (?, ?, ?, ?, ?, ?);" "VALUES (?, ?, ?, ?, ?, ?);"
); );
Ok(sqlx::query(insert_one_page_sql) Ok(NoteId(
sqlx::query(insert_one_page_sql)
.bind(&page.slug) .bind(&page.slug)
.bind(&page.title) .bind(&page.title)
.bind(&page.note_id) .bind(&page.note_id)
@ -333,7 +394,105 @@ where
.bind(&page.lastview_date) .bind(&page.lastview_date)
.execute(executor) .execute(executor)
.await? .await?
.last_insert_rowid()) .last_insert_rowid(),
))
}
async fn bulk_select_ids_for_note_uuids<'a, E>(
executor: E,
ids: &Vec<&str>,
) -> SqlResult<Vec<(String, i64)>>
where
E: Executor<'a, Database = Sqlite>,
{
let bulk_select_ids_for_note_uuids_sql = "SELECT uuid, id FROM notes WHERE uuid IN ("
.to_string()
+ &["?"].repeat(ids.len()).join(",")
+ &");".to_string();
let mut request = sqlx::query(&bulk_select_ids_for_note_uuids_sql);
for id in ids.iter() {
request = request.bind(id);
}
Ok(request
.try_map(|row: SqliteRow| {
let l = row.try_get::<String, _>(0)?;
let r = row.try_get::<i64, _>(1)?;
Ok((l, r))
})
.fetch_all(executor)
.await?
.into_iter()
.collect())
}
async fn get_note_note_relationship<'a, E>(
executor: E,
parent_id: ParentId,
note_id: NoteId,
) -> SqlResult<NoteRelationship>
where
E: Executor<'a, Database = Sqlite>,
{
let get_note_note_relationship_sql = concat!(
"SELECT parent_id, note_id, position, nature ",
"FROM note_relationships ",
"WHERE parent_id = ? and note_id = ? ",
"LIMIT 1"
);
sqlx::query_as(get_note_note_relationship_sql)
.bind(&*parent_id)
.bind(&*note_id)
.fetch_one(executor)
.await
}
async fn delete_note_note_relationship<'a, E>(
executor: E,
parent_id: ParentId,
note_id: NoteId,
) -> SqlResult<()>
where
E: Executor<'a, Database = Sqlite>,
{
let delete_note_note_relationship_sql = concat!(
"DELETE FROM note_relationships ",
"WHERE parent_id = ? and note_id = ? "
);
let count = sqlx::query(delete_note_note_relationship_sql)
.bind(&*parent_id)
.bind(&*note_id)
.execute(executor)
.await?
.rows_affected();
match count {
1 => Ok(()),
_ => Err(sqlx::Error::RowNotFound),
}
}
async fn close_hole_for_deleted_note<'a, E>(
executor: E,
parent_id: ParentId,
position: i64,
) -> SqlResult<()>
where
E: Executor<'a, Database = Sqlite>,
{
let close_hole_for_deleted_note_sql = concat!(
"UPDATE note_relationships ",
"SET position = position - 1 ",
"WHERE position > ? and parent_id = ?;"
);
sqlx::query(close_hole_for_deleted_note_sql)
.bind(&position)
.bind(&*parent_id)
.execute(executor)
.await
.map(|_| ())
} }
fn create_unique_root_note() -> NewNote { fn create_unique_root_note() -> NewNote {