perf(inventory): lazy list, photo thumbnails, indexes, debounced reload
Scale the local inventory to 10k+ varieties: - Render the list with ListView.builder over a flattened header/item model instead of building every tile upfront. - Store a small regenerable JPEG thumbnail per photo (schema v14) and use it for the 48px list avatar; full bytes stay for offer image hosting. Existing photos are backfilled lazily at startup. Thumbnail is local-only (excluded from CRDT sync and backups by the JSON codec). - Add indexes on varieties(is_deleted,is_draft), attachments(parent_type, parent_id,kind), lots(variety_id) via @TableIndex. - Debounce watchInventoryView (~250ms) so a burst of table writes triggers one reload, not seven. - cacheWidth/cacheHeight on the list avatar decode. - Scale test raised 3k -> 10k; migration test v13 -> v14.
This commit is contained in:
parent
2884ddd3c7
commit
3de01bd948
12 changed files with 5114 additions and 34 deletions
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@ -32,7 +32,7 @@ class AppDatabase extends _$AppDatabase {
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/// Current schema version; also stamped into interchange exports so an
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/// importer knows which app generation wrote the file (data-model §7).
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static const int currentSchemaVersion = 13;
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static const int currentSchemaVersion = 14;
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@override
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int get schemaVersion => currentSchemaVersion;
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@ -196,9 +196,40 @@ class AppDatabase extends _$AppDatabase {
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await m.createTable(gardenOutcomes);
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}
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}
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// v14: scalability for large inventories. A local, regenerable [thumbnail]
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// BLOB on attachments (so the list never decodes full-resolution photos)
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// plus indexes on the columns the inventory list filters/joins on. All
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// additive and guarded, so a half-migrated dev database re-runs cleanly
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// (see the v7 note above). Existing thumbnails are backfilled lazily in
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// the background, not here (image decoding in a migration is slow/fragile).
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if (from < 14) {
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if (!await _hasColumn('attachments', 'thumbnail')) {
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await m.addColumn(attachments, attachments.thumbnail);
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}
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// Declared as `@TableIndex` on the tables, so a fresh install gets them
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// via createAll(); existing databases get them here. Guarded against a
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// half-migrated dev database (see the v7 note above).
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for (final index in [
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idxVarietiesDeletedDraft,
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idxAttachmentsParent,
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idxLotsVariety,
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]) {
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if (!await _hasIndex(index.entityName)) await m.create(index);
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}
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}
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},
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);
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/// Whether an index named [name] already exists — keeps the additive v14
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/// index creation idempotent against partially-migrated databases.
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Future<bool> _hasIndex(String name) async {
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final rows = await customSelect(
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"SELECT 1 FROM sqlite_master WHERE type = 'index' AND name = ?",
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variables: [Variable.withString(name)],
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).get();
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return rows.isNotEmpty;
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}
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/// Whether a table named [table] already exists. Keeps the additive v8
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/// table creation idempotent against partially-migrated databases.
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Future<bool> _hasTable(String table) async {
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@ -7975,6 +7975,17 @@ class $AttachmentsTable extends Attachments
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type: DriftSqlType.blob,
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requiredDuringInsert: false,
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);
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static const VerificationMeta _thumbnailMeta = const VerificationMeta(
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'thumbnail',
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);
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@override
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late final GeneratedColumn<Uint8List> thumbnail = GeneratedColumn<Uint8List>(
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'thumbnail',
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aliasedName,
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true,
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type: DriftSqlType.blob,
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requiredDuringInsert: false,
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);
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static const VerificationMeta _mimeTypeMeta = const VerificationMeta(
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'mimeType',
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);
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@ -8011,6 +8022,7 @@ class $AttachmentsTable extends Attachments
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kind,
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uri,
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bytes,
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thumbnail,
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mimeType,
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sortOrder,
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];
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@ -8090,6 +8102,12 @@ class $AttachmentsTable extends Attachments
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bytes.isAcceptableOrUnknown(data['bytes']!, _bytesMeta),
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);
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}
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if (data.containsKey('thumbnail')) {
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context.handle(
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_thumbnailMeta,
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thumbnail.isAcceptableOrUnknown(data['thumbnail']!, _thumbnailMeta),
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);
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}
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if (data.containsKey('mime_type')) {
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context.handle(
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_mimeTypeMeta,
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@ -8159,6 +8177,10 @@ class $AttachmentsTable extends Attachments
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DriftSqlType.blob,
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data['${effectivePrefix}bytes'],
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),
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thumbnail: attachedDatabase.typeMapping.read(
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DriftSqlType.blob,
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data['${effectivePrefix}thumbnail'],
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),
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mimeType: attachedDatabase.typeMapping.read(
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DriftSqlType.string,
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data['${effectivePrefix}mime_type'],
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@ -8193,6 +8215,13 @@ class Attachment extends DataClass implements Insertable<Attachment> {
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final AttachmentKind kind;
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final String? uri;
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final Uint8List? bytes;
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/// A small JPEG thumbnail of [bytes] (photos only), decoded once on save so
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/// the inventory list never has to decode the full-resolution photo for a
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/// 48px avatar. Purely derived, local and regenerable — it is EXCLUDED from
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/// CRDT sync payloads and backups (see [SyncColumns] usage); a peer or a
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/// restored backup regenerates it lazily via `backfillThumbnails`.
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final Uint8List? thumbnail;
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final String? mimeType;
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/// Display order among sibling attachments (lower first). The lowest-ordered
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@ -8212,6 +8241,7 @@ class Attachment extends DataClass implements Insertable<Attachment> {
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required this.kind,
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this.uri,
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this.bytes,
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this.thumbnail,
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this.mimeType,
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required this.sortOrder,
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});
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@ -8241,6 +8271,9 @@ class Attachment extends DataClass implements Insertable<Attachment> {
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if (!nullToAbsent || bytes != null) {
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map['bytes'] = Variable<Uint8List>(bytes);
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}
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if (!nullToAbsent || thumbnail != null) {
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map['thumbnail'] = Variable<Uint8List>(thumbnail);
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}
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if (!nullToAbsent || mimeType != null) {
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map['mime_type'] = Variable<String>(mimeType);
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}
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@ -8263,6 +8296,9 @@ class Attachment extends DataClass implements Insertable<Attachment> {
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bytes: bytes == null && nullToAbsent
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? const Value.absent()
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: Value(bytes),
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thumbnail: thumbnail == null && nullToAbsent
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? const Value.absent()
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: Value(thumbnail),
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mimeType: mimeType == null && nullToAbsent
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? const Value.absent()
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: Value(mimeType),
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@ -8291,6 +8327,7 @@ class Attachment extends DataClass implements Insertable<Attachment> {
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),
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uri: serializer.fromJson<String?>(json['uri']),
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bytes: serializer.fromJson<Uint8List?>(json['bytes']),
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thumbnail: serializer.fromJson<Uint8List?>(json['thumbnail']),
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mimeType: serializer.fromJson<String?>(json['mimeType']),
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sortOrder: serializer.fromJson<int>(json['sortOrder']),
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);
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@ -8314,6 +8351,7 @@ class Attachment extends DataClass implements Insertable<Attachment> {
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),
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'uri': serializer.toJson<String?>(uri),
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'bytes': serializer.toJson<Uint8List?>(bytes),
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'thumbnail': serializer.toJson<Uint8List?>(thumbnail),
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'mimeType': serializer.toJson<String?>(mimeType),
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'sortOrder': serializer.toJson<int>(sortOrder),
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};
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@ -8331,6 +8369,7 @@ class Attachment extends DataClass implements Insertable<Attachment> {
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AttachmentKind? kind,
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Value<String?> uri = const Value.absent(),
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Value<Uint8List?> bytes = const Value.absent(),
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Value<Uint8List?> thumbnail = const Value.absent(),
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Value<String?> mimeType = const Value.absent(),
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int? sortOrder,
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}) => Attachment(
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@ -8345,6 +8384,7 @@ class Attachment extends DataClass implements Insertable<Attachment> {
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kind: kind ?? this.kind,
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uri: uri.present ? uri.value : this.uri,
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bytes: bytes.present ? bytes.value : this.bytes,
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thumbnail: thumbnail.present ? thumbnail.value : this.thumbnail,
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mimeType: mimeType.present ? mimeType.value : this.mimeType,
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sortOrder: sortOrder ?? this.sortOrder,
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);
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@ -8367,6 +8407,7 @@ class Attachment extends DataClass implements Insertable<Attachment> {
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kind: data.kind.present ? data.kind.value : this.kind,
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uri: data.uri.present ? data.uri.value : this.uri,
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bytes: data.bytes.present ? data.bytes.value : this.bytes,
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thumbnail: data.thumbnail.present ? data.thumbnail.value : this.thumbnail,
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mimeType: data.mimeType.present ? data.mimeType.value : this.mimeType,
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sortOrder: data.sortOrder.present ? data.sortOrder.value : this.sortOrder,
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);
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@ -8386,6 +8427,7 @@ class Attachment extends DataClass implements Insertable<Attachment> {
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..write('kind: $kind, ')
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..write('uri: $uri, ')
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..write('bytes: $bytes, ')
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..write('thumbnail: $thumbnail, ')
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..write('mimeType: $mimeType, ')
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..write('sortOrder: $sortOrder')
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..write(')'))
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@ -8405,6 +8447,7 @@ class Attachment extends DataClass implements Insertable<Attachment> {
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kind,
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uri,
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$driftBlobEquality.hash(bytes),
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$driftBlobEquality.hash(thumbnail),
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mimeType,
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sortOrder,
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);
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@ -8423,6 +8466,7 @@ class Attachment extends DataClass implements Insertable<Attachment> {
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other.kind == this.kind &&
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other.uri == this.uri &&
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$driftBlobEquality.equals(other.bytes, this.bytes) &&
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$driftBlobEquality.equals(other.thumbnail, this.thumbnail) &&
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other.mimeType == this.mimeType &&
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other.sortOrder == this.sortOrder);
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}
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@ -8439,6 +8483,7 @@ class AttachmentsCompanion extends UpdateCompanion<Attachment> {
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final Value<AttachmentKind> kind;
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final Value<String?> uri;
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final Value<Uint8List?> bytes;
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final Value<Uint8List?> thumbnail;
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final Value<String?> mimeType;
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final Value<int> sortOrder;
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final Value<int> rowid;
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@ -8454,6 +8499,7 @@ class AttachmentsCompanion extends UpdateCompanion<Attachment> {
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this.kind = const Value.absent(),
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this.uri = const Value.absent(),
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this.bytes = const Value.absent(),
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this.thumbnail = const Value.absent(),
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this.mimeType = const Value.absent(),
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this.sortOrder = const Value.absent(),
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this.rowid = const Value.absent(),
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@ -8470,6 +8516,7 @@ class AttachmentsCompanion extends UpdateCompanion<Attachment> {
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required AttachmentKind kind,
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this.uri = const Value.absent(),
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this.bytes = const Value.absent(),
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this.thumbnail = const Value.absent(),
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this.mimeType = const Value.absent(),
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this.sortOrder = const Value.absent(),
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this.rowid = const Value.absent(),
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@ -8492,6 +8539,7 @@ class AttachmentsCompanion extends UpdateCompanion<Attachment> {
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Expression<String>? kind,
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Expression<String>? uri,
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Expression<Uint8List>? bytes,
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Expression<Uint8List>? thumbnail,
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Expression<String>? mimeType,
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Expression<int>? sortOrder,
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Expression<int>? rowid,
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@ -8508,6 +8556,7 @@ class AttachmentsCompanion extends UpdateCompanion<Attachment> {
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if (kind != null) 'kind': kind,
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if (uri != null) 'uri': uri,
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if (bytes != null) 'bytes': bytes,
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if (thumbnail != null) 'thumbnail': thumbnail,
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if (mimeType != null) 'mime_type': mimeType,
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if (sortOrder != null) 'sort_order': sortOrder,
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if (rowid != null) 'rowid': rowid,
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@ -8526,6 +8575,7 @@ class AttachmentsCompanion extends UpdateCompanion<Attachment> {
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Value<AttachmentKind>? kind,
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Value<String?>? uri,
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Value<Uint8List?>? bytes,
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Value<Uint8List?>? thumbnail,
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Value<String?>? mimeType,
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Value<int>? sortOrder,
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Value<int>? rowid,
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@ -8542,6 +8592,7 @@ class AttachmentsCompanion extends UpdateCompanion<Attachment> {
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kind: kind ?? this.kind,
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uri: uri ?? this.uri,
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bytes: bytes ?? this.bytes,
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thumbnail: thumbnail ?? this.thumbnail,
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mimeType: mimeType ?? this.mimeType,
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sortOrder: sortOrder ?? this.sortOrder,
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rowid: rowid ?? this.rowid,
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@ -8588,6 +8639,9 @@ class AttachmentsCompanion extends UpdateCompanion<Attachment> {
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if (bytes.present) {
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map['bytes'] = Variable<Uint8List>(bytes.value);
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}
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if (thumbnail.present) {
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map['thumbnail'] = Variable<Uint8List>(thumbnail.value);
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}
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if (mimeType.present) {
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map['mime_type'] = Variable<String>(mimeType.value);
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}
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@ -8614,6 +8668,7 @@ class AttachmentsCompanion extends UpdateCompanion<Attachment> {
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..write('kind: $kind, ')
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..write('uri: $uri, ')
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..write('bytes: $bytes, ')
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..write('thumbnail: $thumbnail, ')
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..write('mimeType: $mimeType, ')
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..write('sortOrder: $sortOrder, ')
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..write('rowid: $rowid')
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@ -11435,6 +11490,18 @@ abstract class _$AppDatabase extends GeneratedDatabase {
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late final $ExternalLinksTable externalLinks = $ExternalLinksTable(this);
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late final $PlantaresTable plantares = $PlantaresTable(this);
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late final $SalesTable sales = $SalesTable(this);
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late final Index idxVarietiesDeletedDraft = Index(
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'idx_varieties_deleted_draft',
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'CREATE INDEX idx_varieties_deleted_draft ON varieties (is_deleted, is_draft)',
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);
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late final Index idxLotsVariety = Index(
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'idx_lots_variety',
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'CREATE INDEX idx_lots_variety ON lots (variety_id)',
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);
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late final Index idxAttachmentsParent = Index(
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'idx_attachments_parent',
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'CREATE INDEX idx_attachments_parent ON attachments (parent_type, parent_id, kind)',
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);
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@override
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Iterable<TableInfo<Table, Object?>> get allTables =>
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allSchemaEntities.whereType<TableInfo<Table, Object?>>();
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@ -11454,6 +11521,9 @@ abstract class _$AppDatabase extends GeneratedDatabase {
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externalLinks,
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plantares,
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sales,
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idxVarietiesDeletedDraft,
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idxLotsVariety,
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idxAttachmentsParent,
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];
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}
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@ -15118,6 +15188,7 @@ typedef $$AttachmentsTableCreateCompanionBuilder =
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required AttachmentKind kind,
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Value<String?> uri,
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Value<Uint8List?> bytes,
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Value<Uint8List?> thumbnail,
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Value<String?> mimeType,
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Value<int> sortOrder,
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Value<int> rowid,
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@ -15135,6 +15206,7 @@ typedef $$AttachmentsTableUpdateCompanionBuilder =
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Value<AttachmentKind> kind,
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Value<String?> uri,
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Value<Uint8List?> bytes,
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Value<Uint8List?> thumbnail,
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Value<String?> mimeType,
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Value<int> sortOrder,
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Value<int> rowid,
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@ -15206,6 +15278,11 @@ class $$AttachmentsTableFilterComposer
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builder: (column) => ColumnFilters(column),
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);
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ColumnFilters<Uint8List> get thumbnail => $composableBuilder(
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column: $table.thumbnail,
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builder: (column) => ColumnFilters(column),
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);
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ColumnFilters<String> get mimeType => $composableBuilder(
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column: $table.mimeType,
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builder: (column) => ColumnFilters(column),
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@ -15281,6 +15358,11 @@ class $$AttachmentsTableOrderingComposer
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builder: (column) => ColumnOrderings(column),
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);
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ColumnOrderings<Uint8List> get thumbnail => $composableBuilder(
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column: $table.thumbnail,
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builder: (column) => ColumnOrderings(column),
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);
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ColumnOrderings<String> get mimeType => $composableBuilder(
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column: $table.mimeType,
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builder: (column) => ColumnOrderings(column),
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@ -15341,6 +15423,9 @@ class $$AttachmentsTableAnnotationComposer
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GeneratedColumn<Uint8List> get bytes =>
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$composableBuilder(column: $table.bytes, builder: (column) => column);
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GeneratedColumn<Uint8List> get thumbnail =>
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$composableBuilder(column: $table.thumbnail, builder: (column) => column);
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GeneratedColumn<String> get mimeType =>
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$composableBuilder(column: $table.mimeType, builder: (column) => column);
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@ -15390,6 +15475,7 @@ class $$AttachmentsTableTableManager
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Value<AttachmentKind> kind = const Value.absent(),
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Value<String?> uri = const Value.absent(),
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Value<Uint8List?> bytes = const Value.absent(),
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Value<Uint8List?> thumbnail = const Value.absent(),
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Value<String?> mimeType = const Value.absent(),
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Value<int> sortOrder = const Value.absent(),
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Value<int> rowid = const Value.absent(),
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@ -15405,6 +15491,7 @@ class $$AttachmentsTableTableManager
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kind: kind,
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uri: uri,
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bytes: bytes,
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thumbnail: thumbnail,
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mimeType: mimeType,
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sortOrder: sortOrder,
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rowid: rowid,
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@ -15422,6 +15509,7 @@ class $$AttachmentsTableTableManager
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required AttachmentKind kind,
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Value<String?> uri = const Value.absent(),
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Value<Uint8List?> bytes = const Value.absent(),
|
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Value<Uint8List?> thumbnail = const Value.absent(),
|
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Value<String?> mimeType = const Value.absent(),
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Value<int> sortOrder = const Value.absent(),
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Value<int> rowid = const Value.absent(),
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@ -15437,6 +15525,7 @@ class $$AttachmentsTableTableManager
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kind: kind,
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uri: uri,
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bytes: bytes,
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thumbnail: thumbnail,
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mimeType: mimeType,
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sortOrder: sortOrder,
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rowid: rowid,
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|
|
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|
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@ -5,6 +5,10 @@ import 'sync_columns.dart';
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/// The identity/accession — one row per distinct thing in the inventory.
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||||
/// Only [label] is mandatory (progressive disclosure).
|
||||
///
|
||||
/// The index covers the inventory list's hot filter — non-deleted, non-draft
|
||||
/// rows — so it stays fast with a large catalogue.
|
||||
@TableIndex(name: 'idx_varieties_deleted_draft', columns: {#isDeleted, #isDraft})
|
||||
class Varieties extends Table with SyncColumns {
|
||||
TextColumn get label => text()();
|
||||
TextColumn get speciesId => text().nullable()(); // → Species
|
||||
|
|
@ -77,6 +81,10 @@ class SpeciesCommonNames extends Table with SyncColumns {
|
|||
|
||||
/// A homogeneous batch held for a Variety — its own year and its own unit.
|
||||
/// Quantity (commons_core value type) is flattened into columns here.
|
||||
///
|
||||
/// Indexed by [varietyId] — the inventory list joins lots per variety (types,
|
||||
/// shared status, viability), so this avoids a full scan per reload.
|
||||
@TableIndex(name: 'idx_lots_variety', columns: {#varietyId})
|
||||
class Lots extends Table with SyncColumns {
|
||||
TextColumn get varietyId => text()();
|
||||
TextColumn get type =>
|
||||
|
|
@ -181,12 +189,26 @@ class Parties extends Table with SyncColumns {
|
|||
/// rest by SQLCipher) via [bytes]; external files use [uri]. Storing bytes here
|
||||
/// keeps the "no plaintext at rest" rule for photos in Block 1; an external
|
||||
/// encrypted file store is a later optimization.
|
||||
///
|
||||
/// Indexed by (parentType, parentId, kind) — the list's "first photo per
|
||||
/// variety" lookup filters on exactly these.
|
||||
@TableIndex(
|
||||
name: 'idx_attachments_parent',
|
||||
columns: {#parentType, #parentId, #kind},
|
||||
)
|
||||
class Attachments extends Table with SyncColumns {
|
||||
TextColumn get parentType => textEnum<ParentType>()();
|
||||
TextColumn get parentId => text()();
|
||||
TextColumn get kind => textEnum<AttachmentKind>()();
|
||||
TextColumn get uri => text().nullable()();
|
||||
BlobColumn get bytes => blob().nullable()();
|
||||
|
||||
/// A small JPEG thumbnail of [bytes] (photos only), decoded once on save so
|
||||
/// the inventory list never has to decode the full-resolution photo for a
|
||||
/// 48px avatar. Purely derived, local and regenerable — it is EXCLUDED from
|
||||
/// CRDT sync payloads and backups (see [SyncColumns] usage); a peer or a
|
||||
/// restored backup regenerates it lazily via `backfillThumbnails`.
|
||||
BlobColumn get thumbnail => blob().nullable()();
|
||||
TextColumn get mimeType => text().nullable()();
|
||||
|
||||
/// Display order among sibling attachments (lower first). The lowest-ordered
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue