set_deck()

proto/backend.proto

@@ -150,6 +150,7 @@ service BackendService {
     rpc UpdateCard (Card) returns (Empty);
     rpc AddCard (Card) returns (CardID);
     rpc RemoveCards (RemoveCardsIn) returns (Empty);
+    rpc SetDeck (SetDeckIn) returns (Empty);
 
     // notes
 
@@ -1081,3 +1082,8 @@ message SortDeckIn {
     int64 deck_id = 1;
     bool randomize = 2;
 }
+
+message SetDeckIn {
+    repeated int64 card_ids = 1;
+    int64 deck_id = 2;
+}

pylib/anki/collection.py

@@ -384,6 +384,9 @@ class Collection:
         "You probably want .remove_notes_by_card() instead."
         self.backend.remove_cards(card_ids=card_ids)
 
+    def set_deck(self, card_ids: List[int], deck_id: int) -> None:
+        self.backend.set_deck(card_ids=card_ids, deck_id=deck_id)
+
     # legacy
 
     def remCards(self, ids: List[int], notes: bool = True) -> None:

qt/aqt/browser.py

@@ -22,7 +22,7 @@ from anki.models import NoteType
 from anki.notes import Note
 from anki.rsbackend import TR, DeckTreeNode, InvalidInput
 from anki.stats import CardStats
-from anki.utils import htmlToTextLine, ids2str, intTime, isMac, isWin
+from anki.utils import htmlToTextLine, ids2str, isMac, isWin
 from aqt import AnkiQt, gui_hooks
 from aqt.editor import Editor
 from aqt.exporting import ExportDialog
@@ -1601,21 +1601,7 @@ where id in %s"""
             return
         self.model.beginReset()
         self.mw.checkpoint(_("Change Deck"))
-        mod = intTime()
-        usn = self.col.usn()
-        # normal cards
-        scids = ids2str(cids)
-        # remove any cards from filtered deck first
-        self.col.sched.remFromDyn(cids)
-        # then move into new deck
-        self.col.db.execute(
-            """
-update cards set usn=?, mod=?, did=? where id in """
-            + scids,
-            usn,
-            mod,
-            did,
-        )
+        self.col.set_deck(cids, did)
         self.model.endReset()
         self.mw.requireReset(reason=ResetReason.BrowserSetDeck, context=self)
 

rslib/src/backend/mod.rs

@@ -817,6 +817,12 @@ impl BackendService for Backend {
         })
     }
 
+    fn set_deck(&mut self, input: pb::SetDeckIn) -> BackendResult<Empty> {
+        let cids: Vec<_> = input.card_ids.into_iter().map(CardID).collect();
+        let deck_id = input.deck_id.into();
+        self.with_col(|col| col.set_deck(&cids, deck_id).map(Into::into))
+    }
+
     // notes
     //-------------------------------------------------------------------
 

rslib/src/card.rs

@@ -1,7 +1,7 @@
 // Copyright: Ankitects Pty Ltd and contributors
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
-use crate::decks::{DeckFilterContext, DeckID};
+use crate::decks::DeckID;
 use crate::define_newtype;
 use crate::err::{AnkiError, Result};
 use crate::notes::NoteID;
@@ -102,103 +102,10 @@ impl Card {
         self.usn = usn;
     }
 
-    pub(crate) fn move_into_filtered_deck(&mut self, ctx: &DeckFilterContext, position: i32) {
-        // filtered and v1 learning cards are excluded, so odue should be guaranteed to be zero
-        if self.original_due != 0 {
-            println!("bug: odue was set");
-            return;
-        }
-
-        self.original_deck_id = self.deck_id;
-        self.deck_id = ctx.target_deck;
-
-        self.original_due = self.due;
-
-        if ctx.scheduler == SchedulerVersion::V1 {
-            if self.ctype == CardType::Review && self.due <= ctx.today as i32 {
-                // review cards that are due are left in the review queue
-            } else {
-                // new + non-due go into new queue
-                self.queue = CardQueue::New;
-            }
-            if self.due != 0 {
-                self.due = position;
-            }
-        } else {
-            // if rescheduling is disabled, all cards go in the review queue
-            if !ctx.config.reschedule {
-                self.queue = CardQueue::Review;
-            }
-            // fixme: can we unify this with v1 scheduler in the future?
-            // https://anki.tenderapp.com/discussions/ankidesktop/35978-rebuilding-filtered-deck-on-experimental-v2-empties-deck-and-reschedules-to-the-year-1745
-            if self.due > 0 {
-                self.due = position;
-            }
-        }
-    }
-
-    /// Restores to the original deck and clears original_due.
-    /// This does not update the queue or type, so should only be used as
-    /// part of an operation that adjusts those separately.
-    pub(crate) fn remove_from_filtered_deck_before_reschedule(&mut self) {
-        if self.original_deck_id.0 != 0 {
-            self.deck_id = self.original_deck_id;
-            self.original_deck_id.0 = 0;
-            self.original_due = 0;
-        }
-    }
-
-    pub(crate) fn remove_from_filtered_deck_restoring_queue(&mut self, sched: SchedulerVersion) {
-        if self.original_deck_id.0 == 0 {
-            // not in a filtered deck
-            return;
-        }
-
-        self.deck_id = self.original_deck_id;
-        self.original_deck_id.0 = 0;
-
-        match sched {
-            SchedulerVersion::V1 => {
-                self.due = self.original_due;
-                self.queue = match self.ctype {
-                    CardType::New => CardQueue::New,
-                    CardType::Learn => CardQueue::New,
-                    CardType::Review => CardQueue::Review,
-                    // not applicable in v1, should not happen
-                    CardType::Relearn => {
-                        println!("did not expect relearn type in v1 for card {}", self.id);
-                        CardQueue::New
-                    }
-                };
-                if self.ctype == CardType::Learn {
-                    self.ctype = CardType::New;
-                }
-            }
-            SchedulerVersion::V2 => {
-                // original_due is cleared if card answered in filtered deck
-                if self.original_due > 0 {
-                    self.due = self.original_due;
-                }
-
-                if (self.queue as i8) >= 0 {
-                    self.queue = match self.ctype {
-                        CardType::Learn | CardType::Relearn => {
-                            if self.due > 1_000_000_000 {
-                                // unix timestamp
-                                CardQueue::Learn
-                            } else {
-                                // day number
-                                CardQueue::DayLearn
-                            }
-                        }
-                        CardType::New => CardQueue::New,
-                        CardType::Review => CardQueue::Review,
-                    }
-                }
-            }
-        }
-
-        self.original_due = 0;
+    /// Caller must ensure provided deck exists and is not filtered.
+    fn set_deck(&mut self, deck: DeckID, sched: SchedulerVersion) {
+        self.remove_from_filtered_deck_restoring_queue(sched);
+        self.deck_id = deck;
     }
 }
 #[derive(Debug)]
@@ -289,6 +196,27 @@ impl Collection {
 
         Ok(())
     }
+
+    pub fn set_deck(&mut self, cards: &[CardID], deck_id: DeckID) -> Result<()> {
+        let deck = self.get_deck(deck_id)?.ok_or(AnkiError::NotFound)?;
+        if deck.is_filtered() {
+            return Err(AnkiError::DeckIsFiltered);
+        }
+        self.storage.set_search_table_to_card_ids(cards)?;
+        let sched = self.sched_ver();
+        let usn = self.usn()?;
+        self.transact(None, |col| {
+            for mut card in col.storage.all_searched_cards()? {
+                if card.deck_id == deck_id {
+                    continue;
+                }
+                let original = card.clone();
+                card.set_deck(deck_id, sched);
+                col.update_card(&mut card, &original, usn)?;
+            }
+            Ok(())
+        })
+    }
 }
 
 #[cfg(test)]

rslib/src/decks/mod.rs

@@ -17,11 +17,9 @@ use crate::{
     types::Usn,
 };
 mod counts;
-mod filtered;
 mod schema11;
 mod tree;
 pub(crate) use counts::DueCounts;
-pub(crate) use filtered::DeckFilterContext;
 pub use schema11::DeckSchema11;
 use std::{borrow::Cow, sync::Arc};
 

rslib/src/filtered.rs

@@ -1,13 +1,13 @@
 // Copyright: Ankitects Pty Ltd and contributors
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
-use super::{Deck, DeckID};
 pub use crate::backend_proto::{
     deck_kind::Kind as DeckKind, filtered_search_term::FilteredSearchOrder, Deck as DeckProto,
     DeckCommon, DeckKind as DeckKindProto, FilteredDeck, FilteredSearchTerm, NormalDeck,
 };
+use crate::decks::{Deck, DeckID};
 use crate::{
-    card::{CardID, CardQueue},
+    card::{Card, CardID, CardQueue, CardType},
     collection::Collection,
     config::SchedulerVersion,
     err::Result,
@@ -17,6 +17,107 @@ use crate::{
     types::Usn,
 };
 
+impl Card {
+    pub(crate) fn move_into_filtered_deck(&mut self, ctx: &DeckFilterContext, position: i32) {
+        // filtered and v1 learning cards are excluded, so odue should be guaranteed to be zero
+        if self.original_due != 0 {
+            println!("bug: odue was set");
+            return;
+        }
+
+        self.original_deck_id = self.deck_id;
+        self.deck_id = ctx.target_deck;
+
+        self.original_due = self.due;
+
+        if ctx.scheduler == SchedulerVersion::V1 {
+            if self.ctype == CardType::Review && self.due <= ctx.today as i32 {
+                // review cards that are due are left in the review queue
+            } else {
+                // new + non-due go into new queue
+                self.queue = CardQueue::New;
+            }
+            if self.due != 0 {
+                self.due = position;
+            }
+        } else {
+            // if rescheduling is disabled, all cards go in the review queue
+            if !ctx.config.reschedule {
+                self.queue = CardQueue::Review;
+            }
+            // fixme: can we unify this with v1 scheduler in the future?
+            // https://anki.tenderapp.com/discussions/ankidesktop/35978-rebuilding-filtered-deck-on-experimental-v2-empties-deck-and-reschedules-to-the-year-1745
+            if self.due > 0 {
+                self.due = position;
+            }
+        }
+    }
+
+    /// Restores to the original deck and clears original_due.
+    /// This does not update the queue or type, so should only be used as
+    /// part of an operation that adjusts those separately.
+    pub(crate) fn remove_from_filtered_deck_before_reschedule(&mut self) {
+        if self.original_deck_id.0 != 0 {
+            self.deck_id = self.original_deck_id;
+            self.original_deck_id.0 = 0;
+            self.original_due = 0;
+        }
+    }
+
+    pub(crate) fn remove_from_filtered_deck_restoring_queue(&mut self, sched: SchedulerVersion) {
+        if self.original_deck_id.0 == 0 {
+            // not in a filtered deck
+            return;
+        }
+
+        self.deck_id = self.original_deck_id;
+        self.original_deck_id.0 = 0;
+
+        match sched {
+            SchedulerVersion::V1 => {
+                self.due = self.original_due;
+                self.queue = match self.ctype {
+                    CardType::New => CardQueue::New,
+                    CardType::Learn => CardQueue::New,
+                    CardType::Review => CardQueue::Review,
+                    // not applicable in v1, should not happen
+                    CardType::Relearn => {
+                        println!("did not expect relearn type in v1 for card {}", self.id);
+                        CardQueue::New
+                    }
+                };
+                if self.ctype == CardType::Learn {
+                    self.ctype = CardType::New;
+                }
+            }
+            SchedulerVersion::V2 => {
+                // original_due is cleared if card answered in filtered deck
+                if self.original_due > 0 {
+                    self.due = self.original_due;
+                }
+
+                if (self.queue as i8) >= 0 {
+                    self.queue = match self.ctype {
+                        CardType::Learn | CardType::Relearn => {
+                            if self.due > 1_000_000_000 {
+                                // unix timestamp
+                                CardQueue::Learn
+                            } else {
+                                // day number
+                                CardQueue::DayLearn
+                            }
+                        }
+                        CardType::New => CardQueue::New,
+                        CardType::Review => CardQueue::Review,
+                    }
+                }
+            }
+        }
+
+        self.original_due = 0;
+    }
+}
+
 impl Deck {
     pub fn new_filtered() -> Deck {
         let mut filt = FilteredDeck::default();

rslib/src/lib.rs

@@ -13,6 +13,7 @@ pub mod dbcheck;
 pub mod deckconf;
 pub mod decks;
 pub mod err;
+pub mod filtered;
 pub mod findreplace;
 pub mod i18n;
 pub mod latex;

rslib/src/sched/bury_and_suspend.rs

@@ -83,7 +83,7 @@ impl Collection {
 
     pub fn unbury_or_unsuspend_cards(&mut self, cids: &[CardID]) -> Result<()> {
         self.transact(None, |col| {
-            col.set_search_table_to_card_ids(cids)?;
+            col.storage.set_search_table_to_card_ids(cids)?;
             col.unsuspend_or_unbury_searched_cards()
         })
     }
@@ -143,7 +143,7 @@ impl Collection {
         mode: pb::bury_or_suspend_cards_in::Mode,
     ) -> Result<()> {
         self.transact(None, |col| {
-            col.set_search_table_to_card_ids(cids)?;
+            col.storage.set_search_table_to_card_ids(cids)?;
             col.bury_or_suspend_searched_cards(mode)
         })
     }

rslib/src/sched/new.rs

@@ -72,7 +72,7 @@ impl Collection {
         let usn = self.usn()?;
         let mut position = self.get_next_card_position();
         self.transact(None, |col| {
-            col.set_search_table_to_card_ids(cids)?;
+            col.storage.set_search_table_to_card_ids(cids)?;
             let cards = col.storage.all_searched_cards()?;
             for mut card in cards {
                 let original = card.clone();
@@ -113,7 +113,7 @@ impl Collection {
         if shift {
             self.shift_existing_cards(starting_from, step * cids.len() as u32, usn)?;
         }
-        self.set_search_table_to_card_ids(cids)?;
+        self.storage.set_search_table_to_card_ids(cids)?;
         let cards = self.storage.all_searched_cards()?;
         let sorter = NewCardSorter::new(&cards, starting_from, step, random);
         for mut card in cards {

rslib/src/sched/reviews.rs

@@ -36,7 +36,7 @@ impl Collection {
         let mut rng = rand::thread_rng();
         let distribution = Uniform::from(min_days..=max_days);
         self.transact(None, |col| {
-            col.set_search_table_to_card_ids(cids)?;
+            col.storage.set_search_table_to_card_ids(cids)?;
             for mut card in col.storage.all_searched_cards()? {
                 let original = card.clone();
                 let interval = distribution.sample(&mut rng);

rslib/src/search/cards.rs

@@ -106,22 +106,6 @@ impl Collection {
         Ok(())
     }
 
-    /// Injects the provided card IDs into the search_cids table, for
-    /// when ids have arrived outside of a search.
-    /// Clear with clear_searched_cards().
-    pub(crate) fn set_search_table_to_card_ids(&mut self, cards: &[CardID]) -> Result<()> {
-        self.storage.setup_searched_cards_table()?;
-        let mut stmt = self
-            .storage
-            .db
-            .prepare_cached("insert into search_cids values (?)")?;
-        for cid in cards {
-            stmt.execute(&[cid])?;
-        }
-
-        Ok(())
-    }
-
     /// If the sort mode is based on a config setting, look it up.
     fn resolve_config_sort(&self, mode: &mut SortMode) {
         if mode == &SortMode::FromConfig {

rslib/src/storage/card/mod.rs

@@ -335,6 +335,21 @@ impl super::SqliteStorage {
             .execute("drop table if exists search_cids", NO_PARAMS)?;
         Ok(())
     }
+
+    /// Injects the provided card IDs into the search_cids table, for
+    /// when ids have arrived outside of a search.
+    /// Clear with clear_searched_cards().
+    pub(crate) fn set_search_table_to_card_ids(&mut self, cards: &[CardID]) -> Result<()> {
+        self.setup_searched_cards_table()?;
+        let mut stmt = self
+            .db
+            .prepare_cached("insert into search_cids values (?)")?;
+        for cid in cards {
+            stmt.execute(&[cid])?;
+        }
+
+        Ok(())
+    }
 }
 
 #[cfg(test)]