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|
//! Helpers and types for dealing with the edit lifecycle.
//!
//! Does not contain the core code for creating/updating/reading/deleting the Editor, Annotation,
//! and Changelog objects, which lives under `editing_crud`.
use crate::database_models::*;
use crate::database_schema::*;
use crate::editing_crud::EditgroupCrud;
use crate::entity_crud::EntityCrud;
use crate::errors::{FatcatError, Result};
use crate::identifiers::FatcatId;
use crate::server::DbConn;
use diesel;
use diesel::prelude::*;
use fatcat_api_spec::models::*;
pub struct EditContext {
pub editor_id: FatcatId,
pub editgroup_id: FatcatId,
pub extra_json: Option<serde_json::Value>,
pub autoaccept: bool,
}
impl EditContext {
/// This function should always be run within a transaction
pub fn check(&self, conn: &DbConn) -> Result<()> {
let count: i64 = changelog::table
.filter(changelog::editgroup_id.eq(&self.editgroup_id.to_uuid()))
.count()
.get_result(conn)?;
if count > 0 {
Err(FatcatError::EditgroupAlreadyAccepted(
self.editgroup_id.to_string(),
))?;
}
Ok(())
}
}
pub fn make_edit_context(
conn: &DbConn,
editor_id: FatcatId,
editgroup_id: Option<FatcatId>,
autoaccept: bool,
description: Option<String>,
extra: Option<serde_json::Value>,
) -> Result<EditContext> {
// *either* autoaccept is false and editgroup_id is Some, *or* autoaccept is true and
// editgroup_id is None
let editgroup_id: FatcatId = match (editgroup_id, autoaccept) {
(Some(eg), false) => eg,
(None, true) => {
let eg = Editgroup {
editgroup_id: None,
editor_id: Some(editor_id.to_string()),
editor: None,
changelog_index: None,
submitted: None,
description: description,
extra: extra,
annotations: None,
edits: None,
};
let row = eg.db_create(conn, autoaccept)?;
FatcatId::from_uuid(&row.id)
}
_ => Err(FatcatError::BadRequest(
"unsupported batch editgroup/accept combination".to_string(),
))?,
};
Ok(EditContext {
editor_id,
editgroup_id,
extra_json: None,
autoaccept,
})
}
/// This function should always be run within a transaction
pub fn accept_editgroup(conn: &DbConn, editgroup_id: FatcatId) -> Result<ChangelogRow> {
// check that we haven't accepted already (in changelog)
// NB: could leave this to a UNIQUE constraint
// TODO: redundant with check_edit_context
let count: i64 = changelog::table
.filter(changelog::editgroup_id.eq(editgroup_id.to_uuid()))
.count()
.get_result(conn)?;
if count > 0 {
return Err(FatcatError::EditgroupAlreadyAccepted(editgroup_id.to_string()).into());
}
// copy edit columns to ident table
ContainerEntity::db_accept_edits(conn, editgroup_id)?;
CreatorEntity::db_accept_edits(conn, editgroup_id)?;
FileEntity::db_accept_edits(conn, editgroup_id)?;
FilesetEntity::db_accept_edits(conn, editgroup_id)?;
WebcaptureEntity::db_accept_edits(conn, editgroup_id)?;
ReleaseEntity::db_accept_edits(conn, editgroup_id)?;
WorkEntity::db_accept_edits(conn, editgroup_id)?;
// append log/changelog row
let entry: ChangelogRow = diesel::insert_into(changelog::table)
.values((changelog::editgroup_id.eq(editgroup_id.to_uuid()),))
.get_result(conn)?;
// update editgroup row with is_accepted
diesel::update(editgroup::table.find(editgroup_id.to_uuid()))
.set(editgroup::is_accepted.eq(true))
.execute(conn)?;
Ok(entry)
}
|
