add: journal page memberships

add: "Joined" write access option

crates/core/src/database/memberships.rs

@@ -0,0 +1,87 @@
+use super::*;
+use crate::cache::Cache;
+use crate::model::{
+    Error, Result, auth::User, journal::JournalPageMembership,
+    journal_permissions::JournalPermission, permissions::FinePermission,
+};
+use crate::{auto_method, execute, get, query_row};
+
+#[cfg(feature = "sqlite")]
+use rusqlite::Row;
+
+#[cfg(feature = "postgres")]
+use tokio_postgres::Row;
+
+impl DataManager {
+    /// Get a [`JournalEntry`] from an SQL row.
+    pub(crate) fn get_membership_from_row(
+        #[cfg(feature = "sqlite")] x: &Row<'_>,
+        #[cfg(feature = "postgres")] x: &Row,
+    ) -> JournalPageMembership {
+        JournalPageMembership {
+            id: get!(x->0(u64)) as usize,
+            created: get!(x->1(u64)) as usize,
+            owner: get!(x->2(u64)) as usize,
+            journal: get!(x->3(u64)) as usize,
+            role: JournalPermission::from_bits(get!(x->4(u32))).unwrap(),
+        }
+    }
+
+    auto_method!(get_membership_by_id()@get_membership_from_row -> "SELECT * FROM memberships WHERE id = $1" --name="journal membership" --returns=JournalPageMembership --cache-key-tmpl="atto.membership:{}");
+
+    /// Get a journal page membership by `owner` and `journal`.
+    pub async fn get_membership_by_owner_journal(
+        &self,
+        owner: usize,
+        journal: usize,
+    ) -> Result<JournalPageMembership> {
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = query_row!(
+            &conn,
+            "SELECT * FROM memberships WHERE owner = $1 AND journal = $2",
+            &[&owner, &journal],
+            |x| { Ok(Self::get_membership_from_row(x)) }
+        );
+
+        if res.is_err() {
+            return Err(Error::GeneralNotFound("journal membership".to_string()));
+        }
+
+        Ok(res.unwrap())
+    }
+
+    /// Create a new journal page membership in the database.
+    ///
+    /// # Arguments
+    /// * `data` - a mock [`JournalPageMembership`] object to insert
+    pub async fn create_membership(&self, data: JournalPageMembership) -> Result<()> {
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = execute!(
+            &conn,
+            "INSERT INTO memberships VALUES ($1, $2, $3, $4, $5",
+            &[
+                &data.id.to_string().as_str(),
+                &data.created.to_string().as_str(),
+                &data.owner.to_string().as_str(),
+                &data.journal.to_string().as_str(),
+                &(data.role.bits()).to_string().as_str(),
+            ]
+        );
+
+        if let Err(e) = res {
+            return Err(Error::DatabaseError(e.to_string()));
+        }
+
+        Ok(())
+    }
+
+    auto_method!(delete_membership()@get_membership_by_id:MANAGE_MEMBERSHIPS -> "DELETE FROM memberships WHERE id = $1" --cache-key-tmpl="atto.membership:{}");
+}