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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,135 +1,49 @@ | ||
| import 'package:ext_rw/ext_rw.dart'; | ||
| import 'package:hmi_core/hmi_core_failure.dart'; | ||
| import 'package:hmi_core/hmi_core_log.dart'; | ||
| import 'package:hmi_core/hmi_core_result_new.dart'; | ||
|
|
||
| /// | ||
| /// A collection of the SchameEntry, | ||
| /// abstruction on the SQL table rows | ||
| class DataSchema<T extends SchemaEntry, P> implements Schema<T, P> { | ||
| late final Log _log; | ||
| final List<Field> _fields; | ||
| final Map<String, T> _entries = {}; | ||
| final SchemaRead<T, P> _read; | ||
| final SchemaWrite<T> _write; | ||
| final Map<String, Schema> _relations; | ||
| /// | ||
| /// A collection of the SchameEntry, | ||
| /// abstruction on the SQL table rows | ||
| /// - [keys] - list of table field names | ||
| DataSchema({ | ||
| required List<Field> fields, | ||
| SchemaRead<T, P> read = const SchemaRead.empty(), | ||
| SchemaWrite<T> write = const SchemaWrite.empty(), | ||
| Map<String, Schema> relations = const {}, | ||
| }) : | ||
| _fields = fields, | ||
| _read = read, | ||
| _write = write, | ||
| _relations = relations { | ||
| _log = Log("$runtimeType"); | ||
| } | ||
| /// | ||
| /// Returns a list of table field names | ||
| List<Field> get fields { | ||
| return _fields; | ||
| } | ||
| /// | ||
| /// Returns a list of table field keys | ||
| List<String> get keys { | ||
| return _fields.map((field) => field.key).toList(); | ||
| } | ||
| /// | ||
| /// | ||
| List<T> get entries => _entries.values.toList(); | ||
| _write = write; | ||
| /// | ||
| /// Fetchs data with new sql built from [values] | ||
| @override | ||
| Future<Result<List<T>, Failure>> fetch(P params) async { | ||
| await fetchRelations(); | ||
| final read = _read; | ||
| return read.fetch(params).then((result) { | ||
| return switch(result) { | ||
| Ok<List<T>, Failure>(:final value) => () { | ||
| _entries.clear(); | ||
| for (final entry in value) { | ||
| if (_entries.containsKey(entry.key)) { | ||
| throw Failure( | ||
| message: "$runtimeType.fetchWith | dublicated entry key: ${entry.key}", | ||
| stackTrace: StackTrace.current, | ||
| ); | ||
| } | ||
| _entries[entry.key] = entry; | ||
| } | ||
| return Ok<List<T>, Failure>(_entries.values.toList()); | ||
| }(), | ||
| Err<List<T>, Failure>(:final error) => () { | ||
| return Err<List<T>, Failure>(error); | ||
| }(), | ||
| }; | ||
| }); | ||
| } | ||
| /// | ||
| /// Returns relation Result<Scheme> if exists else Result<Failure> | ||
| Result<Schema, Failure> relation(String id) { | ||
| final rel = _relations[id]; | ||
| if (rel != null) { | ||
| return Ok(rel); | ||
| } else { | ||
| return Err(Failure( | ||
| message: "$runtimeType.relation | id: $id - not found", | ||
| stackTrace: StackTrace.current, | ||
| )); | ||
| } | ||
| return read.fetch(params); | ||
| } | ||
| /// | ||
| /// Inserts new entry into the table scheme | ||
| @override | ||
| Future<Result<void, Failure>> insert({T? entry}) { | ||
| final write = _write; | ||
| return write.insert(entry).then((result) { | ||
| return switch (result) { | ||
| Ok(:final value) => () { | ||
| final entry_ = value; | ||
| _entries[entry_.key] = entry_; | ||
| return const Ok<void, Failure>(null); | ||
| }(), | ||
| Err(:final error) => Err(error), | ||
| }; | ||
| }); | ||
| return write.insert(entry); | ||
| } | ||
| /// | ||
| /// Updates entry of the table scheme | ||
| @override | ||
| Future<Result<void, Failure>> update(T entry) { | ||
| final write = _write; | ||
| return write.update(entry).then((result) { | ||
| if (result is Ok) { | ||
| _entries[entry.key] = entry; | ||
| } | ||
| return result; | ||
| }); | ||
| return write.update(entry); | ||
| } | ||
| /// | ||
| /// Deletes entry of the table scheme | ||
| @override | ||
| Future<Result<void, Failure>> delete(T entry) { | ||
| final write = _write; | ||
| return write.delete(entry).then((result) { | ||
| if (result is Ok) { | ||
| _entries.remove(entry.key); | ||
| } | ||
| return result; | ||
| }); | ||
| } | ||
| /// | ||
| /// Fetchs data of the relation schemes only (with existing sql) | ||
| Future<void> fetchRelations() async { | ||
| for (final field in _fields) { | ||
| if (field.relation.isNotEmpty) { | ||
| switch (relation(field.relation.id)) { | ||
| case Ok(:final value): | ||
| await value.fetch(null); | ||
| case Err(:final error): | ||
| _log.warning(".fetchRelations | relation '${field.relation}' - not found\n\terror: $error"); | ||
| } | ||
| } | ||
| } | ||
| return write.delete(entry); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,135 +1,20 @@ | ||
| import 'package:ext_rw/ext_rw.dart'; | ||
| import 'package:hmi_core/hmi_core_failure.dart'; | ||
| // import 'package:hmi_core/hmi_core_log.dart'; | ||
| import 'package:hmi_core/hmi_core_result_new.dart'; | ||
|
|
||
| /// | ||
| /// A collection of the SchameEntry, | ||
| /// abstruction on the SQL table rows | ||
| /// An abstruction on the data access | ||
| abstract interface class Schema<T extends SchemaEntry, P> { | ||
| // late final Log _log; | ||
| // final List<Field> _fields; | ||
| // final Map<String, T> _entries = {}; | ||
| // final SchemaRead<T, P> _read; | ||
| // final SchemaWrite<T> _write; | ||
| // final Map<String, Schema> _relations; | ||
| /// | ||
| /// A collection of the SchameEntry, | ||
| /// abstruction on the SQL table rows | ||
| /// - [keys] - list of table field names | ||
| // Schema({ | ||
| // required List<Field> fields, | ||
| // SchemaRead<T, P> read = const SchemaRead.empty(), | ||
| // SchemaWrite<T> write = const SchemaWrite.empty(), | ||
| // Map<String, Schema> relations = const {}, | ||
| // }) : | ||
| // _fields = fields, | ||
| // _read = read, | ||
| // _write = write, | ||
| // _relations = relations { | ||
| // _log = Log("$runtimeType"); | ||
| // } | ||
| /// Fetchs data from the data source using [params] | ||
| Future<Result<List<T>, Failure>> fetch(P params); | ||
| /// | ||
| /// Returns a list of table field names | ||
| // List<Field> get fields { | ||
| // return _fields; | ||
| // } | ||
| /// Inserts new entry into the data source | ||
| Future<Result<void, Failure>> insert({T? entry}); | ||
| /// | ||
| /// Returns a list of table field keys | ||
| // List<String> get keys { | ||
| // return _fields.map((field) => field.key).toList(); | ||
| // } | ||
| /// Updates entry of the data source | ||
| Future<Result<void, Failure>> update(T entry); | ||
| /// | ||
| /// | ||
| // List<T> get entries => _entries.values.toList(); | ||
| /// | ||
| /// Fetchs data with new sql built from [values] | ||
| Future<Result<List<T>, Failure>> fetch(P params); // async { | ||
| // await fetchRelations(); | ||
| // final read = _read; | ||
| // return read.fetch(params).then((result) { | ||
| // return switch(result) { | ||
| // Ok<List<T>, Failure>(:final value) => () { | ||
| // _entries.clear(); | ||
| // for (final entry in value) { | ||
| // if (_entries.containsKey(entry.key)) { | ||
| // throw Failure( | ||
| // message: "$runtimeType.fetchWith | dublicated entry key: ${entry.key}", | ||
| // stackTrace: StackTrace.current, | ||
| // ); | ||
| // } | ||
| // _entries[entry.key] = entry; | ||
| // } | ||
| // return Ok<List<T>, Failure>(_entries.values.toList()); | ||
| // }(), | ||
| // Err<List<T>, Failure>(:final error) => () { | ||
| // return Err<List<T>, Failure>(error); | ||
| // }(), | ||
| // }; | ||
| // }); | ||
| // } | ||
| /// | ||
| /// Returns relation Result<Scheme> if exists else Result<Failure> | ||
| // Result<Schema, Failure> relation(String id) { | ||
| // final rel = _relations[id]; | ||
| // if (rel != null) { | ||
| // return Ok(rel); | ||
| // } else { | ||
| // return Err(Failure( | ||
| // message: "$runtimeType.relation | id: $id - not found", | ||
| // stackTrace: StackTrace.current, | ||
| // )); | ||
| // } | ||
| // } | ||
| /// | ||
| /// Inserts new entry into the table scheme | ||
| Future<Result<void, Failure>> insert({T? entry}); // { | ||
| // final write = _write; | ||
| // return write.insert(entry).then((result) { | ||
| // return switch (result) { | ||
| // Ok(:final value) => () { | ||
| // final entry_ = value; | ||
| // _entries[entry_.key] = entry_; | ||
| // return const Ok<void, Failure>(null); | ||
| // }(), | ||
| // Err(:final error) => Err(error), | ||
| // }; | ||
| // }); | ||
| // } | ||
| /// | ||
| /// Updates entry of the table scheme | ||
| Future<Result<void, Failure>> update(T entry); // { | ||
| // final write = _write; | ||
| // return write.update(entry).then((result) { | ||
| // if (result is Ok) { | ||
| // _entries[entry.key] = entry; | ||
| // } | ||
| // return result; | ||
| // }); | ||
| // } | ||
| /// | ||
| /// Deletes entry of the table scheme | ||
| Future<Result<void, Failure>> delete(T entry); // { | ||
| // final write = _write; | ||
| // return write.delete(entry).then((result) { | ||
| // if (result is Ok) { | ||
| // _entries.remove(entry.key); | ||
| // } | ||
| // return result; | ||
| // }); | ||
| // } | ||
| /// | ||
| /// Fetchs data of the relation schemes only (with existing sql) | ||
| // Future<void> fetchRelations() async { | ||
| // for (final field in _fields) { | ||
| // if (field.relation.isNotEmpty) { | ||
| // switch (relation(field.relation.id)) { | ||
| // case Ok(:final value): | ||
| // await value.fetch(null); | ||
| // case Err(:final error): | ||
| // _log.warning(".fetchRelations | relation '${field.relation}' - not found\n\terror: $error"); | ||
| // } | ||
| // } | ||
| // } | ||
| // } | ||
| /// Deletes entry from the data source | ||
| Future<Result<void, Failure>> delete(T entry); | ||
| } |
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