remove unused _updateRequired and associated code

proto/backend.proto

@@ -29,7 +29,6 @@ message I18nBackendInit {
 
 message BackendInput {
     oneof value {
-        TemplateRequirementsIn template_requirements = 16;
         SchedTimingTodayIn sched_timing_today = 17;
         Empty deck_tree = 18;
         SearchCardsIn search_cards = 19;
@@ -103,7 +102,6 @@ message BackendOutput {
         AllStockNotetypesOut all_stock_notetypes = 60;
 
         // fallible commands
-        TemplateRequirementsOut template_requirements = 16;
         DeckTreeOut deck_tree = 18;
         SearchCardsOut search_cards = 19;
         SearchNotesOut search_notes = 20;
@@ -213,31 +211,6 @@ message MediaSyncUploadProgress {
     uint32 deletions = 2;
 }
 
-message TemplateRequirementsIn {
-    repeated string template_front = 1;
-    map<string, uint32> field_names_to_ordinals = 2;
-}
-
-message TemplateRequirementsOut {
-    repeated TemplateRequirement requirements = 1;
-}
-
-message TemplateRequirement {
-    oneof value {
-        TemplateRequirementAll all = 1;
-        TemplateRequirementAny any = 2;
-        Empty none = 3;
-    }
-}
-
-message TemplateRequirementAll {
-    repeated uint32 ords = 1;
-}
-
-message TemplateRequirementAny {
-    repeated uint32 ords = 1;
-}
-
 message SchedTimingTodayIn {
     int64 created_secs = 1;
     int64 now_secs = 2;

pylib/anki/collection.py

@@ -456,6 +456,9 @@ insert into cards values (?,?,?,?,?,?,0,0,?,0,0,0,0,0,0,0,0,"")""",
 
         return all_cards
 
+    # fixme: make sure we enforce deck!=dyn requirement when generating cards
+    # fixme: make sure we enforce random due number when adding into random sorted deck
+
     def _newCard(
         self,
         note: Note,
@@ -796,10 +799,6 @@ select id from notes where mid not in """
                     problems.append(_("Fixed AnkiDroid deck override bug."))
                     self.models.save(m, updateReqs=False)
             if m["type"] == MODEL_STD:
-                # model with missing req specification
-                if "req" not in m:
-                    self.models._updateRequired(m)
-                    problems.append(_("Fixed note type: %s") % m["name"])
                 # cards with invalid ordinal
                 ids = self.db.list(
                     """

pylib/anki/models.py

@@ -19,10 +19,6 @@ from anki.utils import checksum, ids2str, intTime, joinFields, splitFields
 NoteType = Dict[str, Any]
 Field = Dict[str, Any]
 Template = Dict[str, Union[str, int, None]]
-TemplateRequirementType = str  # Union["all", "any", "none"]
-# template ordinal, type, list of field ordinals
-TemplateRequiredFieldOrds = Tuple[int, TemplateRequirementType, List[int]]
-AllTemplateReqs = List[TemplateRequiredFieldOrds]
 
 # fixme: memory leaks
 # fixme: syncing, beforeUpload
@@ -520,14 +516,7 @@ class ModelManager:
     # Required field/text cache
     ##########################################################################
 
-    def _updateRequired(self, m: NoteType) -> None:
-        fronts = [t["qfmt"] for t in m["tmpls"]]
-        field_map = {}
-        for (idx, fld) in enumerate(m["flds"]):
-            field_map[fld["name"]] = idx
-        reqs = self.col.backend.template_requirements(fronts, field_map)
-        m["req"] = [list(l) for l in reqs]
-
+    # fixme: genCards(), clayout, importing, cards.isEmpty
     def availOrds(self, m: NoteType, flds: str) -> List:
         "Given a joined field string, return available template ordinals."
         if m["type"] == MODEL_CLOZE:

pylib/anki/rsbackend.py

@@ -37,7 +37,6 @@ from anki import hooks
 from anki.dbproxy import Row as DBRow
 from anki.dbproxy import ValueForDB
 from anki.fluent_pb2 import FluentString as TR
-from anki.models import AllTemplateReqs
 from anki.sound import AVTag, SoundOrVideoTag, TTSTag
 from anki.types import assert_impossible_literal
 from anki.utils import intTime
@@ -127,24 +126,6 @@ def proto_exception_to_native(err: pb.BackendError) -> Exception:
         assert_impossible_literal(val)
 
 
-def proto_template_reqs_to_legacy(
-    reqs: List[pb.TemplateRequirement],
-) -> AllTemplateReqs:
-    legacy_reqs = []
-    for (idx, req) in enumerate(reqs):
-        kind = req.WhichOneof("value")
-        # fixme: sorting is for the unit tests - should check if any
-        # code depends on the order
-        if kind == "any":
-            legacy_reqs.append((idx, "any", sorted(req.any.ords)))
-        elif kind == "all":
-            legacy_reqs.append((idx, "all", sorted(req.all.ords)))
-        else:
-            l: List[int] = []
-            legacy_reqs.append((idx, "none", l))
-    return legacy_reqs
-
-
 def av_tag_to_native(tag: pb.AVTag) -> AVTag:
     val = tag.WhichOneof("value")
     if val == "sound_or_video":
@@ -289,18 +270,6 @@ class RustBackend:
             release_gil=True,
         )
 
-    def template_requirements(
-        self, template_fronts: List[str], field_map: Dict[str, int]
-    ) -> AllTemplateReqs:
-        input = pb.BackendInput(
-            template_requirements=pb.TemplateRequirementsIn(
-                template_front=template_fronts, field_names_to_ordinals=field_map
-            )
-        )
-        output = self._run_command(input).template_requirements
-        reqs: List[pb.TemplateRequirement] = output.requirements  # type: ignore
-        return proto_template_reqs_to_legacy(reqs)
-
     def sched_timing_today(
         self,
         created_secs: int,

rslib/src/backend/mod.rs

@@ -25,7 +25,7 @@ use crate::{
     sched::cutoff::{local_minutes_west_for_stamp, sched_timing_today},
     sched::timespan::{answer_button_time, learning_congrats, studied_today, time_span},
     search::SortMode,
-    template::{render_card, FieldMap, FieldRequirements, ParsedTemplate, RenderedNode},
+    template::{render_card, RenderedNode},
     text::{extract_av_tags, strip_av_tags, AVTag},
     timestamp::TimestampSecs,
     types::Usn,
@@ -36,7 +36,7 @@ use log::error;
 use pb::backend_input::Value;
 use prost::Message;
 use serde_json::Value as JsonValue;
-use std::collections::{HashMap, HashSet};
+use std::collections::HashMap;
 use std::convert::TryFrom;
 use std::path::PathBuf;
 use std::sync::{Arc, Mutex};
@@ -212,9 +212,6 @@ impl Backend {
     ) -> Result<pb::backend_output::Value> {
         use pb::backend_output::Value as OValue;
         Ok(match ival {
-            Value::TemplateRequirements(input) => {
-                OValue::TemplateRequirements(self.template_requirements(input)?)
-            }
             Value::SchedTimingToday(input) => {
                 OValue::SchedTimingToday(self.sched_timing_today(input))
             }
@@ -411,46 +408,6 @@ impl Backend {
         self.progress_callback = progress_cb;
     }
 
-    fn template_requirements(
-        &self,
-        input: pb::TemplateRequirementsIn,
-    ) -> Result<pb::TemplateRequirementsOut> {
-        let map: FieldMap = input
-            .field_names_to_ordinals
-            .iter()
-            .map(|(name, ord)| (name.as_str(), *ord as u16))
-            .collect();
-        // map each provided template into a requirements list
-        use crate::backend_proto::template_requirement::Value;
-        let all_reqs = input
-            .template_front
-            .into_iter()
-            .map(|template| {
-                if let Ok(tmpl) = ParsedTemplate::from_text(&template) {
-                    // convert the rust structure into a protobuf one
-                    let val = match tmpl.requirements(&map) {
-                        FieldRequirements::Any(ords) => Value::Any(pb::TemplateRequirementAny {
-                            ords: ords_hash_to_set(ords),
-                        }),
-                        FieldRequirements::All(ords) => Value::All(pb::TemplateRequirementAll {
-                            ords: ords_hash_to_set(ords),
-                        }),
-                        FieldRequirements::None => Value::None(pb::Empty {}),
-                    };
-                    Ok(pb::TemplateRequirement { value: Some(val) })
-                } else {
-                    // template parsing failures make card unsatisfiable
-                    Ok(pb::TemplateRequirement {
-                        value: Some(Value::None(pb::Empty {})),
-                    })
-                }
-            })
-            .collect::<Result<Vec<_>>>()?;
-        Ok(pb::TemplateRequirementsOut {
-            requirements: all_reqs,
-        })
-    }
-
     fn sched_timing_today(&self, input: pb::SchedTimingTodayIn) -> pb::SchedTimingTodayOut {
         let today = sched_timing_today(
             TimestampSecs(input.created_secs),
@@ -1030,10 +987,6 @@ fn translate_arg_to_fluent_val(arg: &pb::TranslateArgValue) -> FluentValue {
     }
 }
 
-fn ords_hash_to_set(ords: HashSet<u16>) -> Vec<u32> {
-    ords.iter().map(|ord| *ord as u32).collect()
-}
-
 fn rendered_nodes_to_proto(nodes: Vec<RenderedNode>) -> Vec<pb::RenderedTemplateNode> {
     nodes
         .into_iter()