database_entity_crud -> api_entity_crud

1 files changed, 0 insertions, 1145 deletions

diff --git a/rust/src/database_entity_crud.rs b/rust/src/database_entity_crud.rs
deleted file mode 100644
index 01323637..00000000
--- a/rust/src/database_entity_crud.rs
+++ /dev/null
@@ -1,1145 +0,0 @@
-use api_helpers::*;
-use chrono;
-use database_models::*;
-use database_schema::*;
-use diesel::prelude::*;
-use diesel::{self, insert_into};
-use errors::*;
-use fatcat_api::models::*;
-use serde_json;
-use sha1::Sha1;
-use std::marker::Sized;
-use std::str::FromStr;
-use uuid::Uuid;
-
-pub struct EditContext {
-    pub editor_id: FatCatId,
-    pub editgroup_id: FatCatId,
-    pub extra_json: Option<serde_json::Value>,
-    pub autoaccept: bool,
-}
-
-/* One goal here is to abstract the non-entity-specific bits into generic traits or functions,
- * instead of macros.
- *
- * Notably:
- *
- *   db_get
- *   db_get_rev
- *   db_create
- *   db_create_batch
- *   db_update
- *   db_delete
- *   db_get_history
- *
- * For now, these will probably be macros, until we can level up our trait/generics foo.
- */
-
-// Associated Type, not parametric
-pub trait EntityCrud
-where
-    Self: Sized,
-{
-    // TODO: could EditRow and IdentRow be generic structs? Or do they need to be bound to a
-    // specific table?
-    type EditRow; // EntityEditRow
-    type EditNewRow;
-    type IdentRow; // EntityIdentRow
-    type IdentNewRow;
-    type RevRow;
-
-    fn parse_editgroup_id(&self) -> Result<Option<FatCatId>>;
-
-    // Generic Methods
-    fn db_get(
-        conn: &DbConn,
-        ident: FatCatId
-    ) -> Result<Self>;
-    fn db_get_rev(
-        conn: &DbConn,
-        rev_id: Uuid
-    ) -> Result<Self>;
-    fn db_create(
-        &self,
-        conn: &DbConn,
-        edit_context: &EditContext
-    ) -> Result<Self::EditRow>;
-    fn db_create_batch(
-        conn: &DbConn,
-        edit_context: &EditContext,
-        models: &[&Self],
-    ) -> Result<Vec<Self::EditRow>>;
-    fn db_update(
-        &self,
-        conn: &DbConn,
-        edit_context: &EditContext,
-        ident: FatCatId,
-    ) -> Result<Self::EditRow>;
-    fn db_delete(
-        conn: &DbConn,
-        edit_context: &EditContext,
-        ident: FatCatId,
-    ) -> Result<Self::EditRow>;
-    fn db_get_history(
-        conn: &DbConn,
-        ident: FatCatId,
-        limit: Option<i64>,
-    ) -> Result<Vec<EntityHistoryEntry>>;
-    fn db_accept_edits(
-        conn: &DbConn,
-        editgroup_id: FatCatId
-    ) -> Result<u64>;
-
-    // Entity-specific Methods
-    fn db_from_row(
-        conn: &DbConn,
-        rev_row: Self::RevRow,
-        ident_row: Option<Self::IdentRow>,
-    ) -> Result<Self>;
-    fn db_insert_rev(
-        &self,
-        conn: &DbConn
-    ) -> Result<Uuid>;
-    fn db_insert_revs(
-        conn: &DbConn,
-        models: &[&Self]
-    ) -> Result<Vec<Uuid>>;
-}
-
-// TODO: this could be a separate trait on all entities
-macro_rules! generic_parse_editgroup_id{
-    () => {
-        fn parse_editgroup_id(&self) -> Result<Option<FatCatId>> {
-            match &self.editgroup_id {
-                Some(s) => Ok(Some(FatCatId::from_str(&s)?)),
-                None => Ok(None),
-            }
-        }
-    }
-}
-
-macro_rules! generic_db_get {
-    ($ident_table:ident, $rev_table:ident) => {
-        fn db_get(conn: &DbConn, ident: FatCatId) -> Result<Self> {
-            let (ident, rev): (Self::IdentRow, Self::RevRow) = $ident_table::table
-                .find(ident.to_uuid())
-                .inner_join($rev_table::table)
-                .first(conn)?;
-
-            Self::db_from_row(conn, rev, Some(ident))
-        }
-    };
-}
-
-macro_rules! generic_db_get_rev {
-    ($rev_table:ident) => {
-        fn db_get_rev(conn: &DbConn, rev_id: Uuid) -> Result<Self> {
-            let rev = $rev_table::table.find(rev_id).first(conn)?;
-
-            Self::db_from_row(conn, rev, None)
-        }
-    };
-}
-
-macro_rules! generic_db_create {
-    // TODO: this path should call generic_db_create_batch
-    ($ident_table: ident, $edit_table: ident) => {
-        fn db_create(&self, conn: &DbConn, edit_context: &EditContext) -> Result<Self::EditRow> {
-            let rev_id = self.db_insert_rev(conn)?;
-            let ident: Uuid = insert_into($ident_table::table)
-                .values($ident_table::rev_id.eq(&rev_id))
-                .returning($ident_table::id)
-                .get_result(conn)?;
-            let edit: Self::EditRow = insert_into($edit_table::table)
-                .values((
-                    $edit_table::editgroup_id.eq(edit_context.editgroup_id.to_uuid()),
-                    $edit_table::rev_id.eq(&rev_id),
-                    $edit_table::ident_id.eq(&ident),
-                ))
-                .get_result(conn)?;
-            Ok(edit)
-        }
-    }
-}
-
-macro_rules! generic_db_create_batch {
-    ($ident_table:ident, $edit_table:ident) => {
-        fn db_create_batch(
-            conn: &DbConn,
-            edit_context: &EditContext,
-            models: &[&Self],
-        ) -> Result<Vec<Self::EditRow>> {
-            let rev_ids: Vec<Uuid> = Self::db_insert_revs(conn, models)?;
-            let ident_ids: Vec<Uuid> = insert_into($ident_table::table)
-                .values(
-                    rev_ids
-                        .iter()
-                        .map(|rev_id| Self::IdentNewRow {
-                            rev_id: Some(rev_id.clone()),
-                            is_live: edit_context.autoaccept,
-                            redirect_id: None,
-                        })
-                        .collect::<Vec<Self::IdentNewRow>>(),
-                )
-                .returning($ident_table::id)
-                .get_results(conn)?;
-            let edits: Vec<Self::EditRow> = insert_into($edit_table::table)
-                .values(
-                    rev_ids
-                        .into_iter()
-                        .zip(ident_ids.into_iter())
-                        .map(|(rev_id, ident_id)| Self::EditNewRow {
-                            editgroup_id: edit_context.editgroup_id.to_uuid(),
-                            rev_id: Some(rev_id),
-                            ident_id: ident_id,
-                            redirect_id: None,
-                            prev_rev: None,
-                            extra_json: edit_context.extra_json.clone(),
-                        })
-                        .collect::<Vec<Self::EditNewRow>>(),
-                )
-                .get_results(conn)?;
-            Ok(edits)
-        }
-    };
-}
-
-macro_rules! generic_db_update {
-    ($ident_table: ident, $edit_table: ident) => {
-        fn db_update(&self, conn: &DbConn, edit_context: &EditContext, ident: FatCatId) -> Result<Self::EditRow> {
-            let current: Self::IdentRow = $ident_table::table.find(ident.to_uuid()).first(conn)?;
-            if current.is_live != true {
-                // TODO: what if isn't live? 4xx not 5xx
-                bail!("can't delete an entity that doesn't exist yet");
-            }
-            if current.rev_id.is_none() {
-                // TODO: what if it's already deleted? 4xx not 5xx
-                bail!("entity was already deleted");
-            }
-
-            let rev_id = self.db_insert_rev(conn)?;
-            let edit: Self::EditRow = insert_into($edit_table::table)
-                .values((
-                    $edit_table::editgroup_id.eq(edit_context.editgroup_id.to_uuid()),
-                    $edit_table::ident_id.eq(&ident.to_uuid()),
-                    $edit_table::rev_id.eq(&rev_id),
-                    $edit_table::prev_rev.eq(current.rev_id.unwrap()),
-                    $edit_table::extra_json.eq(&self.extra),
-                ))
-                .get_result(conn)?;
-
-            Ok(edit)
-        }
-    }
-}
-
-macro_rules! generic_db_delete {
-    ($ident_table:ident, $edit_table:ident) => {
-        fn db_delete(
-            conn: &DbConn,
-            edit_context: &EditContext,
-            ident: FatCatId,
-        ) -> Result<Self::EditRow> {
-            let current: Self::IdentRow = $ident_table::table.find(ident.to_uuid()).first(conn)?;
-            if current.is_live != true {
-                // TODO: what if isn't live? 4xx not 5xx
-                bail!("can't delete an entity that doesn't exist yet");
-            }
-            if current.rev_id.is_none() {
-                // TODO: what if it's already deleted? 4xx not 5xx
-                bail!("entity was already deleted");
-            }
-            let edit: Self::EditRow = insert_into($edit_table::table)
-                .values((
-                    $edit_table::editgroup_id.eq(edit_context.editgroup_id.to_uuid()),
-                    $edit_table::ident_id.eq(ident.to_uuid()),
-                    $edit_table::rev_id.eq(None::<Uuid>),
-                    $edit_table::redirect_id.eq(None::<Uuid>),
-                    $edit_table::prev_rev.eq(current.rev_id),
-                    $edit_table::extra_json.eq(&edit_context.extra_json),
-                ))
-                .get_result(conn)?;
-
-            Ok(edit)
-        }
-    };
-}
-
-macro_rules! generic_db_get_history {
-    ($edit_table:ident) => {
-        fn db_get_history(
-            conn: &DbConn,
-            ident: FatCatId,
-            limit: Option<i64>,
-        ) -> Result<Vec<EntityHistoryEntry>> {
-            let limit = limit.unwrap_or(50); // TODO: make a static
-
-            let rows: Vec<(EditgroupRow, ChangelogRow, Self::EditRow)> = editgroup::table
-                .inner_join(changelog::table)
-                .inner_join($edit_table::table)
-                .filter($edit_table::ident_id.eq(ident.to_uuid()))
-                .order(changelog::id.desc())
-                .limit(limit)
-                .get_results(conn)?;
-
-            let history: Result<Vec<EntityHistoryEntry>> = rows.into_iter()
-                .map(|(eg_row, cl_row, e_row)| {
-                    Ok(EntityHistoryEntry {
-                        edit: e_row.into_model()?,
-                        editgroup: eg_row.into_model_partial(),
-                        changelog_entry: cl_row.into_model(),
-                    })
-                })
-                .collect();
-            history
-        }
-    };
-}
-
-/*
-// This would be the clean and efficient way, but see:
-// https://github.com/diesel-rs/diesel/issues/1478
-//
-    diesel::update(container_ident::table)
-        .inner_join(container_edit::table.on(
-            container_ident::id.eq(container_edit::ident_id)
-        ))
-        .filter(container_edit::editgroup_id.eq(editgroup_id))
-        .values((
-            container_ident::is_live.eq(true),
-            container_ident::rev_id.eq(container_edit::rev_id),
-            container_ident::redirect_id.eq(container_edit::redirect_id),
-        ))
-        .execute()?;
-
-// Was previously:
-
-    for entity in &["container", "creator", "file", "work", "release"] {
-        diesel::sql_query(format!(
-            "
-                UPDATE {entity}_ident
-                SET
-                    is_live = true,
-                    rev_id = {entity}_edit.rev_id,
-                    redirect_id = {entity}_edit.redirect_id
-                FROM {entity}_edit
-                WHERE
-                    {entity}_ident.id = {entity}_edit.ident_id
-                    AND {entity}_edit.editgroup_id = $1",
-            entity = entity
-        )).bind::<diesel::sql_types::Uuid, _>(editgroup_id)
-            .execute(conn)?;
-*/
-
-// UPDATE FROM version: single query for many rows
-// Works with Postgres, not Cockroach
-macro_rules! generic_db_accept_edits_batch {
-    ($entity_name_str:expr) => {
-        fn db_accept_edits(
-            conn: &DbConn,
-            editgroup_id: FatCatId,
-        ) -> Result<u64> {
-
-            let count = diesel::sql_query(format!(
-                "
-                    UPDATE {entity}_ident
-                    SET
-                        is_live = true,
-                        rev_id = {entity}_edit.rev_id,
-                        redirect_id = {entity}_edit.redirect_id
-                    FROM {entity}_edit
-                    WHERE
-                        {entity}_ident.id = {entity}_edit.ident_id
-                        AND {entity}_edit.editgroup_id = $1",
-                entity = $entity_name_str 
-            )).bind::<diesel::sql_types::Uuid, _>(editgroup_id.to_uuid())
-                .execute(conn)?;
-            Ok(count as u64)
-        }
-    }
-}
-
-// UPDATE ROW version: single query per row
-// CockroachDB version (slow, single query per row)
-macro_rules! generic_db_accept_edits_each {
-    ($ident_table:ident, $edit_table:ident) => {
-        fn db_accept_edits(
-            conn: &DbConn,
-            editgroup_id: FatCatId,
-        ) -> Result<u64> {
-
-            // 1. select edit rows (in sql)
-            let edit_rows: Vec<Self::EditRow> = $edit_table::table
-                .filter($edit_table::editgroup_id.eq(&editgroup_id.to_uuid()))
-                .get_results(conn)?;
-            // 2. create ident rows (in rust)
-            let ident_rows: Vec<Self::IdentRow> = edit_rows
-                .iter()
-                .map(|edit|
-                    Self::IdentRow {
-                        id: edit.ident_id,
-                        is_live: true,
-                        rev_id: edit.rev_id,
-                        redirect_id: edit.redirect_id,
-
-                    }
-                )
-                .collect();
-            /*
-            // 3. upsert ident rows (in sql)
-            let count: u64 = diesel::insert_into($ident_table::table)
-                .values(ident_rows)
-                .on_conflict()
-                .do_update()
-                .set(ident_rows)
-                .execute(conn)?;
-            */
-            // 3. update every row individually
-            let count = ident_rows.len() as u64;
-            for row in ident_rows {
-                diesel::update(&row)
-                    .set(&row)
-                    .execute(conn)?;
-            }
-            Ok(count)
-        }
-    };
-}
-
-macro_rules! generic_db_insert_rev {
-    () => {
-        fn db_insert_rev(&self, conn: &DbConn) -> Result<Uuid> {
-            Self::db_insert_revs(conn, &vec![self]).map(|id_list| id_list[0])
-        }
-    }
-}
-
-impl EntityCrud for ContainerEntity {
-    type EditRow = ContainerEditRow;
-    type EditNewRow = ContainerEditNewRow;
-    type IdentRow = ContainerIdentRow;
-    type IdentNewRow = ContainerIdentNewRow;
-    type RevRow = ContainerRevRow;
-
-    generic_parse_editgroup_id!();
-    generic_db_get!(container_ident, container_rev);
-    generic_db_get_rev!(container_rev);
-    generic_db_create!(container_ident, container_edit);
-    generic_db_create_batch!(container_ident, container_edit);
-    generic_db_update!(container_ident, container_edit);
-    generic_db_delete!(container_ident, container_edit);
-    generic_db_get_history!(container_edit);
-    generic_db_accept_edits_batch!("container");
-    //generic_db_accept_edits_each!(container_ident, container_edit);
-    generic_db_insert_rev!();
-
-    fn db_from_row(
-        _conn: &DbConn,
-        rev_row: Self::RevRow,
-        ident_row: Option<Self::IdentRow>,
-    ) -> Result<Self> {
-        let (state, ident_id, redirect_id) = match ident_row {
-            Some(i) => (
-                Some(i.state().unwrap().shortname()),
-                Some(FatCatId::from_uuid(&i.id).to_string()),
-                i.redirect_id.map(|u| FatCatId::from_uuid(&u).to_string()),
-            ),
-            None => (None, None, None),
-        };
-
-        Ok(ContainerEntity {
-            issnl: rev_row.issnl,
-            wikidata_qid: rev_row.wikidata_qid,
-            publisher: rev_row.publisher,
-            name: rev_row.name,
-            abbrev: rev_row.abbrev,
-            coden: rev_row.coden,
-            state: state,
-            ident: ident_id,
-            revision: Some(rev_row.id.to_string()),
-            redirect: redirect_id,
-            extra: rev_row.extra_json,
-            editgroup_id: None,
-        })
-    }
-
-    fn db_insert_revs(conn: &DbConn, models: &[&Self]) -> Result<Vec<Uuid>> {
-        // first verify external identifier syntax
-        for entity in models {
-            if let Some(ref extid) = entity.wikidata_qid {
-                check_wikidata_qid(extid)?;
-            }
-            if let Some(ref extid) = entity.issnl {
-                check_issn(extid)?;
-            }
-        }
-
-        let rev_ids: Vec<Uuid> = insert_into(container_rev::table)
-            .values(
-                models
-                    .iter()
-                    .map(|model| ContainerRevNewRow {
-                        name: model.name.clone(),
-                        publisher: model.publisher.clone(),
-                        issnl: model.issnl.clone(),
-                        wikidata_qid: model.wikidata_qid.clone(),
-                        abbrev: model.abbrev.clone(),
-                        coden: model.coden.clone(),
-                        extra_json: model.extra.clone(),
-                    })
-                    .collect::<Vec<ContainerRevNewRow>>(),
-            )
-            .returning(container_rev::id)
-            .get_results(conn)?;
-        Ok(rev_ids)
-    }
-}
-
-impl EntityCrud for CreatorEntity {
-    type EditRow = CreatorEditRow;
-    type EditNewRow = CreatorEditNewRow;
-    type IdentRow = CreatorIdentRow;
-    type IdentNewRow = CreatorIdentNewRow;
-    type RevRow = CreatorRevRow;
-
-    generic_parse_editgroup_id!();
-    generic_db_get!(creator_ident, creator_rev);
-    generic_db_get_rev!(creator_rev);
-    generic_db_create!(creator_ident, creator_edit);
-    generic_db_create_batch!(creator_ident, creator_edit);
-    generic_db_update!(creator_ident, creator_edit);
-    generic_db_delete!(creator_ident, creator_edit);
-    generic_db_get_history!(creator_edit);
-    generic_db_accept_edits_batch!("creator");
-    //generic_db_accept_edits_each!(creator_ident, creator_edit);
-    generic_db_insert_rev!();
-
-    fn db_from_row(
-        _conn: &DbConn,
-        rev_row: Self::RevRow,
-        ident_row: Option<Self::IdentRow>,
-    ) -> Result<Self> {
-        let (state, ident_id, redirect_id) = match ident_row {
-            Some(i) => (
-                Some(i.state().unwrap().shortname()),
-                Some(FatCatId::from_uuid(&i.id).to_string()),
-                i.redirect_id.map(|u| FatCatId::from_uuid(&u).to_string()),
-            ),
-            None => (None, None, None),
-        };
-        Ok(CreatorEntity {
-            display_name: rev_row.display_name,
-            given_name: rev_row.given_name,
-            surname: rev_row.surname,
-            orcid: rev_row.orcid,
-            wikidata_qid: rev_row.wikidata_qid,
-            state: state,
-            ident: ident_id,
-            revision: Some(rev_row.id.to_string()),
-            redirect: redirect_id,
-            editgroup_id: None,
-            extra: rev_row.extra_json,
-        })
-    }
-
-    fn db_insert_revs(conn: &DbConn, models: &[&Self]) -> Result<Vec<Uuid>> {
-        // first verify external identifier syntax
-        for entity in models {
-            if let Some(ref extid) = entity.orcid {
-                check_orcid(extid)?;
-            }
-            if let Some(ref extid) = entity.wikidata_qid {
-                check_wikidata_qid(extid)?;
-            }
-        }
-
-        let rev_ids: Vec<Uuid> = insert_into(creator_rev::table)
-            .values(
-                models
-                    .iter()
-                    .map(|model| CreatorRevNewRow {
-                        display_name: model.display_name.clone(),
-                        given_name: model.given_name.clone(),
-                        surname: model.surname.clone(),
-                        orcid: model.orcid.clone(),
-                        wikidata_qid: model.wikidata_qid.clone(),
-                        extra_json: model.extra.clone(),
-                    })
-                    .collect::<Vec<CreatorRevNewRow>>(),
-            )
-            .returning(creator_rev::id)
-            .get_results(conn)?;
-        Ok(rev_ids)
-    }
-}
-
-impl EntityCrud for FileEntity {
-    type EditRow = FileEditRow;
-    type EditNewRow = FileEditNewRow;
-    type IdentRow = FileIdentRow;
-    type IdentNewRow = FileIdentNewRow;
-    type RevRow = FileRevRow;
-
-    generic_parse_editgroup_id!();
-    generic_db_get!(file_ident, file_rev);
-    generic_db_get_rev!(file_rev);
-    generic_db_create!(file_ident, file_edit);
-    generic_db_create_batch!(file_ident, file_edit);
-    generic_db_update!(file_ident, file_edit);
-    generic_db_delete!(file_ident, file_edit);
-    generic_db_get_history!(file_edit);
-    generic_db_accept_edits_batch!("file");
-    //generic_db_accept_edits_each!(file_ident, file_edit);
-    generic_db_insert_rev!();
-
-    fn db_from_row(
-        conn: &DbConn,
-        rev_row: Self::RevRow,
-        ident_row: Option<Self::IdentRow>,
-    ) -> Result<Self> {
-        let (state, ident_id, redirect_id) = match ident_row {
-            Some(i) => (
-                Some(i.state().unwrap().shortname()),
-                Some(FatCatId::from_uuid(&i.id).to_string()),
-                i.redirect_id.map(|u| FatCatId::from_uuid(&u).to_string()),
-            ),
-            None => (None, None, None),
-        };
-
-        let releases: Vec<FatCatId> = file_release::table
-            .filter(file_release::file_rev.eq(rev_row.id))
-            .get_results(conn)?
-            .into_iter()
-            .map(|r: FileReleaseRow| FatCatId::from_uuid(&r.target_release_ident_id))
-            .collect();
-
-        let urls: Vec<FileEntityUrls> = file_rev_url::table
-            .filter(file_rev_url::file_rev.eq(rev_row.id))
-            .get_results(conn)?
-            .into_iter()
-            .map(|r: FileRevUrlRow| FileEntityUrls {
-                rel: r.rel,
-                url: r.url,
-            })
-            .collect();
-
-        Ok(FileEntity {
-            sha1: rev_row.sha1,
-            sha256: rev_row.sha256,
-            md5: rev_row.md5,
-            size: rev_row.size.map(|v| v as i64),
-            urls: Some(urls),
-            mimetype: rev_row.mimetype,
-            releases: Some(releases.iter().map(|fcid| fcid.to_string()).collect()),
-            state: state,
-            ident: ident_id,
-            revision: Some(rev_row.id.to_string()),
-            redirect: redirect_id,
-            editgroup_id: None,
-            extra: rev_row.extra_json,
-        })
-    }
-
-    fn db_insert_revs(conn: &DbConn, models: &[&Self]) -> Result<Vec<Uuid>> {
-        let rev_ids: Vec<Uuid> = insert_into(file_rev::table)
-            .values(
-                models
-                    .iter()
-                    .map(|model| FileRevNewRow {
-                        size: model.size,
-                        sha1: model.sha1.clone(),
-                        sha256: model.sha256.clone(),
-                        md5: model.md5.clone(),
-                        mimetype: model.mimetype.clone(),
-                        extra_json: model.extra.clone(),
-                    })
-                    .collect::<Vec<FileRevNewRow>>(),
-            )
-            .returning(file_rev::id)
-            .get_results(conn)?;
-
-        let mut file_release_rows: Vec<FileReleaseRow> = vec![];
-        let mut file_url_rows: Vec<FileRevUrlNewRow> = vec![];
-
-        for (model, rev_id) in models.iter().zip(rev_ids.iter()) {
-            match &model.releases {
-                None => (),
-                Some(release_list) => {
-                    let these_release_rows: Result<Vec<FileReleaseRow>> = release_list
-                        .iter()
-                        .map(|r| {
-                            Ok(FileReleaseRow {
-                                file_rev: rev_id.clone(),
-                                target_release_ident_id: FatCatId::from_str(r)?.to_uuid(),
-                            })
-                        })
-                        .collect();
-                    file_release_rows.extend(these_release_rows?);
-                }
-            };
-
-            match &model.urls {
-                None => (),
-                Some(url_list) => {
-                    let these_url_rows: Vec<FileRevUrlNewRow> = url_list
-                        .into_iter()
-                        .map(|u| FileRevUrlNewRow {
-                            file_rev: rev_id.clone(),
-                            rel: u.rel.clone(),
-                            url: u.url.clone(),
-                        })
-                        .collect();
-                    file_url_rows.extend(these_url_rows);
-                }
-            };
-        }
-
-        if !file_release_rows.is_empty() {
-            // TODO: shouldn't it be "file_rev_release"?
-            insert_into(file_release::table)
-                .values(file_release_rows)
-                .execute(conn)?;
-        }
-
-        if !file_url_rows.is_empty() {
-            insert_into(file_rev_url::table)
-                .values(file_url_rows)
-                .execute(conn)?;
-        }
-
-        Ok(rev_ids)
-    }
-}
-
-impl EntityCrud for ReleaseEntity {
-    type EditRow = ReleaseEditRow;
-    type EditNewRow = ReleaseEditNewRow;
-    type IdentRow = ReleaseIdentRow;
-    type IdentNewRow = ReleaseIdentNewRow;
-    type RevRow = ReleaseRevRow;
-
-    generic_parse_editgroup_id!();
-    generic_db_get!(release_ident, release_rev);
-    generic_db_get_rev!(release_rev);
-    //generic_db_create!(release_ident, release_edit);
-    //generic_db_create_batch!(release_ident, release_edit);
-    generic_db_update!(release_ident, release_edit);
-    generic_db_delete!(release_ident, release_edit);
-    generic_db_get_history!(release_edit);
-    generic_db_accept_edits_batch!("release");
-    //generic_db_accept_edits_each!(release_ident, release_edit);
-    generic_db_insert_rev!();
-
-    fn db_create(&self, conn: &DbConn, edit_context: &EditContext) -> Result<Self::EditRow> {
-        let mut edits = Self::db_create_batch(conn, edit_context, &vec![self])?;
-        // probably a more elegant way to destroy the vec and take first element
-        Ok(edits.pop().unwrap())
-    }
-
-    fn db_create_batch(
-        conn: &DbConn,
-        edit_context: &EditContext,
-        models: &[&Self],
-    ) -> Result<Vec<Self::EditRow>> {
-        // This isn't the generic implementation because we need to create Work entities for each
-        // of the release entities passed (at least in the common case)
-
-        // Generate the set of new work entities to insert (usually one for each release, but some
-        // releases might be pointed to a work already)
-        let mut new_work_models: Vec<&WorkEntity> = vec![];
-        for entity in models {
-            if entity.work_id.is_none() {
-                new_work_models.push(&WorkEntity {
-                    ident: None,
-                    revision: None,
-                    redirect: None,
-                    state: None,
-                    editgroup_id: None,
-                    extra: None,
-                });
-            };
-        }
-
-        // create the works, then pluck the list of idents from the result
-        let new_work_edits =
-            WorkEntity::db_create_batch(conn, edit_context, new_work_models.as_slice())?;
-        let mut new_work_ids: Vec<Uuid> = new_work_edits.iter().map(|edit| edit.ident_id).collect();
-
-        // Copy all the release models, and ensure that each has work_id set, using the new work
-        // idents. There should be one new work ident for each release missing one.
-        let models_with_work_ids: Vec<Self> = models
-            .iter()
-            .map(|model| {
-                let mut model = (*model).clone();
-                if model.work_id.is_none() {
-                    model.work_id =
-                        Some(FatCatId::from_uuid(&new_work_ids.pop().unwrap()).to_string())
-                }
-                model
-            })
-            .collect();
-        let model_refs: Vec<&Self> = models_with_work_ids.iter().map(|s| s).collect();
-        let models = model_refs.as_slice();
-
-        // The rest here is copy/pasta from the generic (how to avoid copypasta?)
-        let rev_ids: Vec<Uuid> = Self::db_insert_revs(conn, models)?;
-        let ident_ids: Vec<Uuid> = insert_into(release_ident::table)
-            .values(
-                rev_ids
-                    .iter()
-                    .map(|rev_id| Self::IdentNewRow {
-                        rev_id: Some(rev_id.clone()),
-                        is_live: edit_context.autoaccept,
-                        redirect_id: None,
-                    })
-                    .collect::<Vec<Self::IdentNewRow>>(),
-            )
-            .returning(release_ident::id)
-            .get_results(conn)?;
-        let edits: Vec<Self::EditRow> = insert_into(release_edit::table)
-            .values(
-                rev_ids
-                    .into_iter()
-                    .zip(ident_ids.into_iter())
-                    .map(|(rev_id, ident_id)| Self::EditNewRow {
-                        editgroup_id: edit_context.editgroup_id.to_uuid(),
-                        rev_id: Some(rev_id),
-                        ident_id: ident_id,
-                        redirect_id: None,
-                        prev_rev: None,
-                        extra_json: edit_context.extra_json.clone(),
-                    })
-                    .collect::<Vec<Self::EditNewRow>>(),
-            )
-            .get_results(conn)?;
-        Ok(edits)
-    }
-
-    fn db_from_row(
-        conn: &DbConn,
-        rev_row: Self::RevRow,
-        ident_row: Option<Self::IdentRow>,
-    ) -> Result<Self> {
-        let (state, ident_id, redirect_id) = match ident_row {
-            Some(i) => (
-                Some(i.state().unwrap().shortname()),
-                Some(FatCatId::from_uuid(&i.id).to_string()),
-                i.redirect_id.map(|u| FatCatId::from_uuid(&u).to_string()),
-            ),
-            None => (None, None, None),
-        };
-
-        let refs: Vec<ReleaseRef> = release_ref::table
-            .filter(release_ref::release_rev.eq(rev_row.id))
-            .order(release_ref::index_val.asc())
-            .get_results(conn)?
-            .into_iter()
-            .map(|r: ReleaseRefRow| ReleaseRef {
-                index: r.index_val,
-                key: r.key,
-                extra: r.extra_json,
-                container_title: r.container_title,
-                year: r.year,
-                title: r.title,
-                locator: r.locator,
-                target_release_id: r.target_release_ident_id
-                    .map(|v| FatCatId::from_uuid(&v).to_string()),
-            })
-            .collect();
-
-        let contribs: Vec<ReleaseContrib> = release_contrib::table
-            .filter(release_contrib::release_rev.eq(rev_row.id))
-            .order((
-                release_contrib::role.asc(),
-                release_contrib::index_val.asc(),
-            ))
-            .get_results(conn)?
-            .into_iter()
-            .map(|c: ReleaseContribRow| ReleaseContrib {
-                index: c.index_val,
-                raw_name: c.raw_name,
-                role: c.role,
-                extra: c.extra_json,
-                creator_id: c.creator_ident_id
-                    .map(|v| FatCatId::from_uuid(&v).to_string()),
-                creator: None,
-            })
-            .collect();
-
-        let abstracts: Vec<ReleaseEntityAbstracts> = release_rev_abstract::table
-            .inner_join(abstracts::table)
-            .filter(release_rev_abstract::release_rev.eq(rev_row.id))
-            .get_results(conn)?
-            .into_iter()
-            .map(
-                |r: (ReleaseRevAbstractRow, AbstractsRow)| ReleaseEntityAbstracts {
-                    sha1: Some(r.0.abstract_sha1),
-                    mimetype: r.0.mimetype,
-                    lang: r.0.lang,
-                    content: Some(r.1.content),
-                },
-            )
-            .collect();
-
-        Ok(ReleaseEntity {
-            title: rev_row.title,
-            release_type: rev_row.release_type,
-            release_status: rev_row.release_status,
-            release_date: rev_row
-                .release_date
-                .map(|v| chrono::DateTime::from_utc(v.and_hms(0, 0, 0), chrono::Utc)),
-            doi: rev_row.doi,
-            pmid: rev_row.pmid,
-            pmcid: rev_row.pmcid,
-            isbn13: rev_row.isbn13,
-            core_id: rev_row.core_id,
-            wikidata_qid: rev_row.wikidata_qid,
-            volume: rev_row.volume,
-            issue: rev_row.issue,
-            pages: rev_row.pages,
-            files: None,
-            container: None,
-            container_id: rev_row
-                .container_ident_id
-                .map(|u| FatCatId::from_uuid(&u).to_string()),
-            publisher: rev_row.publisher,
-            language: rev_row.language,
-            work_id: Some(FatCatId::from_uuid(&rev_row.work_ident_id).to_string()),
-            refs: Some(refs),
-            contribs: Some(contribs),
-            abstracts: Some(abstracts),
-            state: state,
-            ident: ident_id,
-            revision: Some(rev_row.id.to_string()),
-            redirect: redirect_id,
-            editgroup_id: None,
-            extra: rev_row.extra_json,
-        })
-    }
-
-    fn db_insert_revs(conn: &DbConn, models: &[&Self]) -> Result<Vec<Uuid>> {
-        // first verify external identifier syntax
-        for entity in models {
-            if let Some(ref extid) = entity.doi {
-                check_doi(extid)?;
-            }
-            if let Some(ref extid) = entity.pmid {
-                check_pmid(extid)?;
-            }
-            if let Some(ref extid) = entity.pmcid {
-                check_pmcid(extid)?;
-            }
-            if let Some(ref extid) = entity.wikidata_qid {
-                check_wikidata_qid(extid)?;
-            }
-        }
-
-        let rev_ids: Vec<Uuid> = insert_into(release_rev::table)
-            .values(models
-                .iter()
-                .map(|model| {
-                    Ok(ReleaseRevNewRow {
-                    title: model.title.clone(),
-                    release_type: model.release_type.clone(),
-                    release_status: model.release_status.clone(),
-                    release_date: model.release_date.map(|v| v.naive_utc().date()),
-                    doi: model.doi.clone(),
-                    pmid: model.pmid.clone(),
-                    pmcid: model.pmcid.clone(),
-                    wikidata_qid: model.wikidata_qid.clone(),
-                    isbn13: model.isbn13.clone(),
-                    core_id: model.core_id.clone(),
-                    volume: model.volume.clone(),
-                    issue: model.issue.clone(),
-                    pages: model.pages.clone(),
-                    work_ident_id: match model.work_id.clone() {
-                        None => bail!("release_revs must have a work_id by the time they are inserted; this is an internal soundness error"),
-                        Some(s) => FatCatId::from_str(&s)?.to_uuid(),
-                    },
-                    container_ident_id: match model.container_id.clone() {
-                        None => None,
-                        Some(s) => Some(FatCatId::from_str(&s)?.to_uuid()),
-                    },
-                    publisher: model.publisher.clone(),
-                    language: model.language.clone(),
-                    extra_json: model.extra.clone()
-                })
-                })
-                .collect::<Result<Vec<ReleaseRevNewRow>>>()?)
-            .returning(release_rev::id)
-            .get_results(conn)?;
-
-        let mut release_ref_rows: Vec<ReleaseRefNewRow> = vec![];
-        let mut release_contrib_rows: Vec<ReleaseContribNewRow> = vec![];
-        let mut abstract_rows: Vec<AbstractsRow> = vec![];
-        let mut release_abstract_rows: Vec<ReleaseRevAbstractNewRow> = vec![];
-
-        for (model, rev_id) in models.iter().zip(rev_ids.iter()) {
-            match &model.refs {
-                None => (),
-                Some(ref_list) => {
-                    let these_ref_rows: Vec<ReleaseRefNewRow> = ref_list
-                        .iter()
-                        .map(|r| {
-                            Ok(ReleaseRefNewRow {
-                                release_rev: rev_id.clone(),
-                                target_release_ident_id: match r.target_release_id.clone() {
-                                    None => None,
-                                    Some(v) => Some(FatCatId::from_str(&v)?.to_uuid()),
-                                },
-                                index_val: r.index,
-                                key: r.key.clone(),
-                                container_title: r.container_title.clone(),
-                                year: r.year,
-                                title: r.title.clone(),
-                                locator: r.locator.clone(),
-                                extra_json: r.extra.clone(),
-                            })
-                        })
-                        .collect::<Result<Vec<ReleaseRefNewRow>>>()?;
-                    release_ref_rows.extend(these_ref_rows);
-                }
-            };
-
-            match &model.contribs {
-                None => (),
-                Some(contrib_list) => {
-                    let these_contrib_rows: Vec<ReleaseContribNewRow> = contrib_list
-                        .iter()
-                        .map(|c| {
-                            Ok(ReleaseContribNewRow {
-                                release_rev: rev_id.clone(),
-                                creator_ident_id: match c.creator_id.clone() {
-                                    None => None,
-                                    Some(v) => Some(FatCatId::from_str(&v)?.to_uuid()),
-                                },
-                                raw_name: c.raw_name.clone(),
-                                index_val: c.index,
-                                role: c.role.clone(),
-                                extra_json: c.extra.clone(),
-                            })
-                        })
-                        .collect::<Result<Vec<ReleaseContribNewRow>>>()?;
-                    release_contrib_rows.extend(these_contrib_rows);
-                }
-            };
-
-            if let Some(abstract_list) = &model.abstracts {
-                // For rows that specify content, we need to insert the abstract if it doesn't exist
-                // already
-                let new_abstracts: Vec<AbstractsRow> = abstract_list
-                    .iter()
-                    .filter(|ea| ea.content.is_some())
-                    .map(|c| AbstractsRow {
-                        sha1: Sha1::from(c.content.clone().unwrap()).hexdigest(),
-                        content: c.content.clone().unwrap(),
-                    })
-                    .collect();
-                abstract_rows.extend(new_abstracts);
-                let new_release_abstract_rows: Vec<ReleaseRevAbstractNewRow> = abstract_list
-                    .into_iter()
-                    .map(|c| {
-                        Ok(ReleaseRevAbstractNewRow {
-                            release_rev: rev_id.clone(),
-                            abstract_sha1: match c.content {
-                                Some(ref content) => Sha1::from(content).hexdigest(),
-                                None => match c.sha1.clone() {
-                                    Some(v) => v,
-                                    None => bail!("either abstract_sha1 or content is required"),
-                                },
-                            },
-                            lang: c.lang.clone(),
-                            mimetype: c.mimetype.clone(),
-                        })
-                    })
-                    .collect::<Result<Vec<ReleaseRevAbstractNewRow>>>()?;
-                release_abstract_rows.extend(new_release_abstract_rows);
-            }
-        }
-
-        if !release_ref_rows.is_empty() {
-            insert_into(release_ref::table)
-                .values(release_ref_rows)
-                .execute(conn)?;
-        }
-
-        if !release_contrib_rows.is_empty() {
-            insert_into(release_contrib::table)
-                .values(release_contrib_rows)
-                .execute(conn)?;
-        }
-
-        if !abstract_rows.is_empty() {
-            // Sort of an "upsert"; only inserts new abstract rows if they don't already exist
-            insert_into(abstracts::table)
-                .values(&abstract_rows)
-                .on_conflict(abstracts::sha1)
-                .do_nothing()
-                .execute(conn)?;
-            insert_into(release_rev_abstract::table)
-                .values(release_abstract_rows)
-                .execute(conn)?;
-        }
-
-        Ok(rev_ids)
-    }
-}
-
-impl EntityCrud for WorkEntity {
-    type EditRow = WorkEditRow;
-    type EditNewRow = WorkEditNewRow;
-    type IdentRow = WorkIdentRow;
-    type IdentNewRow = WorkIdentNewRow;
-    type RevRow = WorkRevRow;
-
-    generic_parse_editgroup_id!();
-    generic_db_get!(work_ident, work_rev);
-    generic_db_get_rev!(work_rev);
-    generic_db_create!(work_ident, work_edit);
-    generic_db_create_batch!(work_ident, work_edit);
-    generic_db_update!(work_ident, work_edit);
-    generic_db_delete!(work_ident, work_edit);
-    generic_db_get_history!(work_edit);
-    generic_db_accept_edits_batch!("work");
-    //generic_db_accept_edits_each!(work_ident, work_edit);
-    generic_db_insert_rev!();
-
-    fn db_from_row(
-        _conn: &DbConn,
-        rev_row: Self::RevRow,
-        ident_row: Option<Self::IdentRow>,
-    ) -> Result<Self> {
-        let (state, ident_id, redirect_id) = match ident_row {
-            Some(i) => (
-                Some(i.state().unwrap().shortname()),
-                Some(FatCatId::from_uuid(&i.id).to_string()),
-                i.redirect_id.map(|u| FatCatId::from_uuid(&u).to_string()),
-            ),
-            None => (None, None, None),
-        };
-
-        Ok(WorkEntity {
-            state: state,
-            ident: ident_id,
-            revision: Some(rev_row.id.to_string()),
-            redirect: redirect_id,
-            editgroup_id: None,
-            extra: rev_row.extra_json,
-        })
-    }
-
-    fn db_insert_revs(conn: &DbConn, models: &[&Self]) -> Result<Vec<Uuid>> {
-        let rev_ids: Vec<Uuid> = insert_into(work_rev::table)
-            .values(
-                models
-                    .iter()
-                    .map(|model| WorkRevNewRow {
-                        extra_json: model.extra.clone(),
-                    })
-                    .collect::<Vec<WorkRevNewRow>>(),
-            )
-            .returning(work_rev::id)
-            .get_results(conn)?;
-        Ok(rev_ids)
-    }
-}