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## 4.6.1
- Fix the moor analyzer plugin not starting
## 4.6.0
- Add `DoUpdate.withExcluded` to refer to the excluded row in an upsert clause.
- Add optional `where` clause to `DoUpdate` constructors
### Important notice
Moor has been renamed to `drift`. This package will continue to be supported until the next major release (5.0.0),
no immediate action is needed.
At the next breaking release, moor will be discontinued in favor of the `drift` package.
Please consider migrating to `drift` at a suitable opportunity.
Automated migration tooling exists! See https://drift.simonbinder.eu/name for details.
## 4.5.0
- Add `moorRuntimeOptions.debugPrint` option to control which `print` method is used by moor.
- Add a `rowId` extension on generated tables.
- Add `NullAwareTypeConverter` to simplify type converters that always map `null` from and to `null`.
- Kill backing isolates after calling `MoorIsolate.shutdownAll`.
## 4.4.1
- Include latest generator in analyzer plugin
## 4.4.0
- Add `Value.ofNullable` constructor to easily wrap nullable values.
- Support selecting views declared in a moor file in Dart (with `select`,
`join` and similar methods)
- Add the `scoped_dart_components` builder option to generate a function for
[Dart components in SQL](https://moor.simonbinder.eu/docs/using-sql/moor_files/#dart-components-in-sql).
The function's parameters reflect tables that are in scope.
- Add the `UpsertMultiple` class to run multiple upsert clauses in an insert.
This requires sqlite3 version 3.35 or later.
- Add the `closeUnderlyingOnClose` argument to `VmDatabase.opened` as an option
to keep the underlying instance opened when closing the `VmDatabase`.
- The `tableUpdates` stream now emits the relevant updates instead of `null`.
- Reflect type converters in generated columns. The `equalsValue` method can be used
as an equals with a value mapped by a type converter.
- Improve nullability analysis for SQL queries.
- __Note__: You have to re-generate sources with `moor_generator` version 4.4.0 after
upgrading to this version. Apologies for the inconvenience.
## 4.3.2
- Fix `insertReturning` not updating streams
- Fix streams emitting stale data if a new subscriber attaches immediately
after an update.
## 4.3.1
- Fix encoding table updates without a kind over isolates
- Fix deserializing some nullable types in the default value serializer
## 4.3.0
- Support custom, existing classes for rows! See the `@UseRowClass` annotation
for details.
- Add `CASE WHEN` expressions with the `caseMatch` method on `Expression`
- Add `insertReturning` which returns the generated row after an insert
- Add `min`, `max` and `avg` functions for `DateTime` expressions
- On supported platforms, cancel pending stream selects when the stream is disposed
- `moor_flutter` is supported
- `moor/ffi` is supported when used on a background isolate
## 4.2.1
- Deprecate `readBool`, `readString`, `readInt`, `readDouble`, `readDateTime`
and `readBlob` in `QueryRow`.
Use `read` directly (which supports nullable types).
## 4.2.0
- Fixed subqueries not affecting stream updates
- Throw a `CouldNotRollBackException` when rolling back a transaction throws
## 4.1.0
- Reverted the `SelectableUtils` extension, its members have been added back to the
`Selectable` class.
- Add `trim()`, `trimLeft()` and `trimRight()` extensions for text expressions
- Initial support for sub-queries in the Dart api:
- `Expression.isInQuery` and `isNotInQuery` for `IS IN (SELECT ...)` matching
- `subqueryExpression` to use single-column, single-row selects as values
- `existsQuery` and `notExistsQuery` for `EXISTS` expressions
- New `package:moor/remote.dart` library to access databases over any `StreamChannel`. The isolate library has been
rewritten on top of that api.
## 4.0.0-nullsafety.1
- __Breaking__: `getSingle()` and `watchSingle()` are now non-nullable and throw for empty results.
Use `getSingleOrNull()` and `watchSingleOrNull()` for the old behavior.
- __Breaking__: Removed `QueryEngine`, its methods have been moved to `DatabaseConnectionUser`
- __Breaking__: Changed the `args` parameter in `QueryExecutor` methods to `List<Object?>`
- __Breaking__: Removed the second type parameter from `TypedResult.read`
- __Breaking__: `TypedResult.read` and `TypedResult.readTable` now throw if the row does not contain the requested table
or expression (they used to return `null`).
- __Breaking__: `MoorWebStorage.indexedDbIfSupported` now returns a future
- __Breaking__: `getSingle` and `watchSingle` (and their `orNull()` variants) are now an extension on `Selectable`.
Import `package:moor/moor.dart` to files using those methods.
- Support null safety
- Changed the sql representation of text types from `VARCHAR` to `TEXT`
- Added extensions for `isNull` and `isNotNull`
- Support creating a `VmDatabase` from a raw sqlite3 `Database` via `VmDatabase.opened`
- New `named_parameters` build option to generate named parameters for named variables in moor files
- Added `Migrator.renameTable` to rename tables
## 3.4.0
- New `TableMigration` api to make complex table migrations easier. See the
[updated documentation](https://moor.simonbinder.eu/docs/advanced-features/migrations/#complex-migrations) for details
on how to use this feature.
- New `DatabaseConnection.delayed` constructor to synchronously obtain a database connection that requires an async
setup. This can be useful when connecting to a `MoorIsolate`.
- `VmDatabase`: Create directory of database file to avoid misuse errors from sqlite3.
- New feature in moor files: You can now set the default value for Dart templates:
`filter ($predicate = TRUE): SELECT * FROM my_table WHERE $predicate`. This generates an optional named parameter in
Dart.
- New `generate_values_in_copy_with` [build option](https://moor.simonbinder.eu/docs/advanced-features/builder_options/)
. It wraps nullable columns in a `Value` in `copyWith` methods so that they can be set to `null`.
- Added `groupConcat`, `cast` and `coalesce` functions to the Dart query builder.
- Added `renameColumn` to `Migrator` to generate `ALTER TABLE RENAME COLUMN` statements.
- Added `VmDatabase.closeExistingInstances()` to close zombie database connections after hot restarts on some OSes.
## 3.3.1
- Support changing `onData` handlers for query streams. This fixes a bug occurring when using `queryStream.first`
multiple times.
## 3.3.0
- New `package:moor/ffi.dart` library to replace the `moor_ffi` package. When migrating, Flutter users need to depend on
the `sqlite3_flutter_libs` package as well. The changelog of `moor_ffi` contains further information about this
- New (in
generator): `apply_converters_on_variables` [build option](https://moor.simonbinder.eu/docs/advanced-features/builder_options/)
. When enabled, type converter will be enabled on variables for analyzed queries. This will be the default option in
the future.
## 3.2.0
- It's now possible to change the name of a class generated for moor-file queries. See
[the documentation](https://moor.simonbinder.eu/docs/using-sql/moor_files/#result-class-names) for details.
- Added the `multiLine`, `caseSensitive`, `unicode` and `doAll` flags to the `regex` sql extension method. They
require `moor_ffi` version `0.7.0` or later.
## 3.1.0
- Update companions now implement `==` and `hashCode`
- New `containsCase` method for text in `package:moor/extensions/moor_ffi.dart`
- The `toCompanion` method is back for data classes, but its generation can be disabled with a build option
- New
feature: [Implicit enum converters](https://moor.simonbinder.eu/docs/advanced-features/type_converters/#implicit-enum-converters)
- Added the `destructiveFallback` extension to databases. It can be used in `migrationStrategy` to delete and then
re-create all tables, indices and triggers.
## 3.0.2
- Fix update statements not escaping column names ([#539](https://github.com/simolus3/moor/issues/539))
## 3.0.1
- Fix `mapFromRowOrNull` not working without a prefix ([#534](https://github.com/simolus3/moor/pull/534))
## 3.0.0
- __Breaking__: `package:moor/moor_web.dart` no longer exports `package:moor/moor.dart`. If you've relied on this,
you'll now need to import `package:moor/moor.dart` as well.
- __Breaking__: Remove deprecated members:
- top-level `and`, `or` and `not` methods. Use `&`, `|` and `.not()` instead.
- top-level `year`, `month`, `day`, `hour`, `minute`, `second` methods. Use the extension member
on `Expression<DateTime>` instead.
- `InsertStatement.insertAll` (use batches instead)
- the `orReplace` boolean parameter on inserts (use `mode: InsertMode.orReplace` instead)
- remove the top-level `isIn` and `isNotIn` functions
(use the `.isIn` and `.isNotIn` instance methods instead)
- `CustomSelectStatement.execute` and `constructFetcher` - use `get()` or `watch()`, respectively
- __Breaking__: Remove the second type variable on `Expression` and subclasses.
- __Breaking__: Remove `customSelectStream` from `QueryEngine`. The `customSelect`
method now returns an `Selectable` (like `customSelectQuery`, which in turn has been deprecated).
- __Breaking__: Columns that are aliases to sqlite's `rowid` column are no longer considered required for inserts
- __Breaking__: Changes the way data classes and companions are inserted:
- Removed `Insertable.toCompanion`
- Added `Insertable.toColumns` to obtain a map from column names to values that should be inserted
- Removed `TableInfo.entityToSql` - use `Insertable.toColumns` instead
- __Breaking__: Renamed the `db` field in daos to `attachedDatabase`. The old field is available through an extension.
- __Breaking__: The `compact_query_methods` and `use_column_name_as_json_key_when_defined_in_moor_file` build options
are now enabled by default. This means that queries in moor files now generate a `Selectable` method by default (
instead of two methods for `get` and `watch`). Columns defined in moor files will have their sql name as json key (
moor used to transform their name to `camelCase`). You can still disable both options to keep the old behavior.
- __Breaking__: The last statement in a moor file must now end with a semicolon as well
- Batches now run statements in the order they were issued. This required a breaking change for engine implementers.
- Experimentally support IndexedDB to store sqlite data on the web
- Moor will no longer wait for query stream listeners to receive a done event when closing a database or transaction.
- Updated stream queries: They now take triggers into account and more accurately detect when an update is necessary.
- New `tableUpdates` method that can be used to listen for a subset of table updates outside of a query.
- New feature: Nested results for compiled queries ([#288](https://github.com/simolus3/moor/issues/288))
See the [documentation](https://moor.simonbinder.eu/docs/using-sql/moor_files/#nested-results) for details on how and
when to use this feature.
- New feature: Use sql expressions for inserts or updates with the new `custom` factory on companions
- New feature: Upserts in the Dart api! Read everything you need to know
[here](https://moor.simonbinder.eu/docs/getting-started/writing_queries/#upserts).
- Support using `MoorIsolates` in scenarios where only primitive messages can be passed between isolates.
## 2.4.2
- Fix `beforeOpen` callback deadlocking when using the isolate executor
([#431](https://github.com/simolus3/moor/issues/431))
- Fix limit clause not being applied when using `.join` afterwards
([#433](https://github.com/simolus3/moor/issues/433))
## 2.4.1
- Don't generate double quoted string literals in date time functions
## 2.4.0
- Support aggregate expressions and `group by` in the Dart api
- Support type converters in moor files!
The [documentation](https://moor.simonbinder.eu/docs/advanced-features/type_converters/)
has been updated to explain how to use them.
- Support stream queries in transactions ([#356](https://github.com/simolus3/moor/issues/365))
- Support table-valued functions (like `json_each` and `json_tree`) in moor files
[#260](https://github.com/simolus3/moor/issues/260).
- Fix a crash when opening a transaction without using it ([#361](https://github.com/simolus3/moor/issues/361))
- New `mapFromCompanion` method in generated tables to convert a `UpdateCompanion` to a model.
- Support generated moor classes in other builders (like `built_value`).
Details [in the docs](https://moor.simonbinder.eu/docs/advanced-features/builder_options/)
## 2.3.0
- New `clientDefault` method for columns. It can be used for dynamic defaults that might be different for each row. For
instance, you can generate a uuid for each row with `text().clientDefault(() => Uuid().v4()();`
- New CLI tool to analyze moor files: Learn more at [https://moor.simonbinder.eu/cli](https://moor.simonbinder.eu/cli)
- Ability to override the default `ValueSerializer` globally by using `moorRuntimeOptions.valueSerializer`.
- Moor files: You can now explicitly declare column types in those cases that the analyzer can't infer it:
```
selectVariable(:variable AS TEXT): SELECT :variable;
```
- Support for triggers and indices! You can declare them in a `.moor` file with a regular `CREATE TRIGGER`
or `CREATE INDEX` statement. Both triggers and indices will be created in the default `onCreate` function. To create
them in `onUpgrade`, use the new `createIndex` and `createTrigger` functions on a `Migrator`.
- Support for moor-file queries that run on initialization ([#280](https://github.com/simolus3/moor/issues/280))
Declare them like this `@create: INSERT INTO users VALUES ('default', 'user')`
- Support deletes in batches ([#325](https://github.com/simolus3/moor/issues/325))
- Reduce unnecessary queries when a stream is unsubscribed and then
re-subscribed ([#329](https://github.com/simolus3/moor/issues/329))
- Experimental new type inference for the sql analyzer. For details, check the
`use_experimental_inference` [build option](https://moor.simonbinder.eu/docs/advanced-features/builder_options/)
- Web: New `initializer` parameter to create the database when it doesn't exist
## 2.2.0
- Support custom expressions for selects in the Dart API:
```dart
final currentBalance = accounts.income - accounts.expenses;
select(accounts).addColumns([currentBalance]).map((row) {
Account account = row.readTable(accounts);
int balanceOfAccount = row.read(currentBalance);
return ...
}).get();
```
- Support the `json1` and `fts5` extensions! Using them also requires version 2.2 of `moor_generator`
and they require `moor_ffi`. For details, see
the [documentation](https://moor.simonbinder.eu/docs/using-sql/extensions/).
- Standardized behavior of batches in transactions across backends
- Introduced `OrderingTerm.asc` and `OrderingTerm.desc` factories to construct ordering terms more easily
## 2.1.1
- Fix crash when closing a database with asserts disabled
- Web: Save the database after migrations ran
- Escape column names in insert statements, if necessary
## 2.1.0
- New extension methods to simplify the Dart api!
- Use `&`, `or` and `.not()` to combine boolean expressions.
```dart
// OLD
select(animals)..where((a) => and(not(a.isMammal), a.amountOfLegs.equals(4)))
// NEW:
select(animals)..where((a) => a.isMammal.not() & a.amountOfLegs.equals(4))
```
- Arithmetic: New `+`, `-`, `*` and `/` operators for int and double sql expressions
- New `+` operator for string concatenation
- Fix crash when `customStatement` is the first operation used on a
database ([#199](https://github.com/simolus3/moor/issues/199))
- Allow transactions inside a `beforeOpen` callback
- New `batch` method on generated databases to execute multiple queries in a single batch
- Experimental support to run moor on a background isolate
- Reduce use of parentheses in SQL code generated at runtime
- Query streams now emit errors that happened while running the query
- Upgraded the sql parser which now supports `WITH` clauses in moor files
- Internal refactorings on the runtime query builder
## 2.0.1
- Introduced `isBetween` and `isBetweenValues` methods for comparable expressions (int, double, datetime)
to check values for both an upper and lower bound
- Automatically map `BOOLEAN` and `DATETIME` columns declared in a sql file to the appropriate type
(both used to be `double` before).
- Fix streams not emitting cached data when listening multiple times
- __Breaking__: Remove the type parameter from `Insertable.createCompanion` (it was declared as an internal method)
__2.0.1+1__: Fix crash when `customStatement` is the first operation used on a database
([#199](https://github.com/simolus3/moor/issues/199))
## 2.0.0
This is the first major update after the initial release and moor and we have a lot to cover:
`.moor` files can now have their own imports and queries, you can embed Dart in sql queries using the new templates
feature and we have a prototype of a pure-Dart SQL IDE ready. Finally, we also removed a variety of deprecated features.
See the breaking changes section to learn what components are affected and what alternatives are available.
### New features
#### Updates to the sql parser
`.moor` files were introduced in moor 1.7 as an experimental way to declare tables by using
`CREATE TABLE` statements. In this version, they become stable and support their own import and query system. This
allows you to write queries in their own file:
```sql
CREATE TABLE users
(
id INT NOT NULL PRIMARY KEY AUTOINCREMENT,
name VARCHAR NOT NULL
);
findByName
:
SELECT *
FROM users
WHERE name LIKE :query;
```
When this file is included from a `@UseMoor` annotation, moor will generate methods to run the query. Of course, you can
also write Dart queries for tables declared in sql:
```dart
Stream<User> loadUserById(int id) {
return (select(users)
..where((u) => u.id.equals(2))).watchSingle();
}
```
Moor files can also import other moor files by using an `import 'other.moor';` statement at the top. Then, all tables
defined in `other.moor` will also be available to the current file.
Moor takes Dart and SQL interop even further with the new "Dart in SQL templates". You can define a query like this:
```sql
findDynamic
:
SELECT *
FROM users
WHERE $condition;
```
And moor will generate a method `findDynamic(Expression<bool, BoolType> condition)` for you. This allows you to bind the
template with a predicate as complex as you'd like. At the moment, Dart templates are supported for
expressions, `OrderBy`, `OrderingTerm` and `Limit`.
`INSERT` statements can now be used as a compiled statement - both in moor files and in a `@UseMoor` or `@UseDao`
annotation. A new builtin linter will even warn you when you forget to provide a value for a non-nullable column - right
at compile time!
And finally, we now generate better query code when queries only return a single column. Instead of generating a whole
new class for that, we simply return the value directly.
#### Experimental ffi support
We released an experimental version of moor built on top of `dart:ffi`. It works cross-platform and is much, much faster
than `moor_flutter`. It you want to try it out, read the docs [here](https://moor.simonbinder.eu/docs/other-engines/vm/)
.
### Minor changes
- a `Constant<String>` can now be written to SQL, it used to throw before. This is useful if you need default values for
strings columns. This also works for `BLOBS`
(`Constant<Uint8List>`).
- new `LazyDatabase` for when you want to construct a database asynchronously (for instance, if you first need to find a
file before you can open a database).
### Breaking changes
- __THIS LIKELY AFFECTS YOUR APP:__ Removed the `transaction` parameter for callbacks in transactions and `beforeOpen`
callbacks. So, instead of writing
```dart
transaction((t) async {
await t.update(table)...;
});
```
simply write
```dart
transaction(() async {
await update(table)...;
});
```
Similarly, instead of using `onOpen: (db, details) async {...}`, use
`onOpen: (details) async {...}`. You don't have to worry about calling methods on your database instead of a
transaction objects. They will be delegated automatically.
On a similar note, we also removed the `operateOn` parameter from compiled queries.
- Compiled queries that return only a single column (e.g. `SELECT COUNT(*) FROM users`)
will just return their value (in this case, an `int`) now. Moor no longer generates a new class in that case.
- Removed `MigrationStrategy.onFinished`. Use `beforeOpen` instead.
- Compiled sql queries starting with an underscore will now generate private match queries. Previously, the
query `_allUsers` would generate a `watchAllUsers` method, that has been adopted to `_watchAllUsers`.
The `generate_private_watch_methods` builder option, which backported this fix to older versions, has thus been
removed.
- Removed `InsertStatement.insertOrReplace`. Use `insert(data, orReplace: true)` instead.
- Removed the diff util and `MoorAnimatedList`. Use a third party library for that.
## 1.7.2
- Fixed a race condition that caused the database to be opened multiple times on slower devices. This problem was
introduced in `1.7.0` and was causing problems during migrations.
## 1.7.1
- Better documentation on `getSingle` and `watchSingle` for queries.
- Fix `INTEGER NOT NULL PRIMARY KEY` wrongly requiring a value during insert (this never affected
`AUTOINCREMENT` columns, and only affects columns declared in a `.moor` file)
## 1.7.0
- Support custom columns via type converters. See the [docs](https://moor.simonbinder.eu/type_converters)
for details on how to use this feature.
- Transactions now roll back when not completed successfully, they also rethrow the exception to make debugging easier.
- New `backends` api, making it easier to write database drivers that work with moor. Apart from
`moor_flutter`, new experimental backends can be checked out from git:
1. `encrypted_moor`: An encrypted moor database: https://github.com/simolus3/moor/tree/develop/extras/encryption
- The compiled sql feature is no longer experimental and will stay stable until a major version bump
- New, experimental support for `.moor` files! Instead of declaring your tables in Dart, you can choose to declare them
with sql by writing the `CREATE TABLE` statement in a `.moor` file. You can then use these tables in the database and
with daos by using the `include` parameter on `@UseMoor` and `@UseDao`. Again, please notice that this is an
experimental api and there might be some hiccups. Please report any issues you run into.
## 1.6.0
- Experimental web support! See [the documentation](https://moor.simonbinder.eu/web) for details.
- Make transactions easier to use: Thanks to some Dart async magic, you no longer need to run queries on the transaction
explicitly. This
```dart
Future deleteCategory(Category category) {
return transaction((t) async {
await t.delete(categories).delete(category);
});
}
```
is now the same as this (notice how we don't have to use the `t.` in front of the delete)
```dart
Future deleteCategory(Category category) {
return transaction((t) async {
await delete(categories).delete(category);
});
}
```
This makes it much easier to compose operations by extracting them into methods, as you don't have to worry about not
using the `t` parameter.
- Moor now provides syntax sugar for list parameters in compiled custom queries
(`SELECT * FROM entries WHERE id IN ?`)
- Support `COLLATE` expressions.
- Date time columns are now comparable
- The `StringType` now supports arbitrary data from sqlite ([#70](https://github.com/simolus3/moor/pull/70)).
Thanks, [knaeckeKami](https://github.com/knaeckeKami)!
- Bugfixes related to stream queries and `LIMIT` clauses.
## 1.5.1
- Fixed an issue where transformed streams would not always update
- Emit a `INSERT INTO table DEFAULT VALUES` when appropriate. Moor used to generate invalid sql before.
## 1.5.0
This version introduces some new concepts and features, which are explained in more detail below. Here is a quick
overview of the new features:
- More consistent and reliable callbacks for migrations. You can now use `MigrationStrategy.beforeOpen`
to run queries after migrations, but before fully opening the database. This is useful to initialize data.
- Greatly expanded documentation, introduced additional checks to provide more helpful error messages
- New `getSingle` and `watchSingle` methods on queries: Queries that you know will only return one row can now be
instructed to return the value directly instead of wrapping it in a list.
- New "update companion" classes to clearly separate between absent values and explicitly setting values back to null -
explained below.
- Experimental support for compiled sql queries: __Moor can now generate typesafe APIs for written sql__. Read on to get
started.
### Update companions
Newly introduced "Update companions" allow you to insert or update data more precisely than before. Previously, there
was no clear separation between "null" and absent values. For instance, let's say we had a table "users" that stores an
id, a name, and an age. Now, let's say we wanted to set the age of a user to null without changing its name. Would we
use `User(age: null)`? Here, the `name` column would implicitly be set to null, so we can't cleanly separate that.
However, with `UsersCompanion(age: Value(null))`, we know the difference between `Value(null)` and the
default `Value.absent()`.
Don't worry, all your existing code will continue to work, this change is fully backwards compatible. You might get
analyzer warnings about missing required fields. The migration to update companions will fix that. Replacing normal
classes with their update companions is simple and the only thing needed to fix that.
The [documentation](https://moor.simonbinder.eu/queries/#updates-and-deletes)
has been updated to reflect this. If you have additional questions, feel free to
[create an issue](https://github.com/simolus3/moor/issues/new).
### Compiled sql queries
Experimental support for compile time custom statements. Sounds super boring, but it actually gives you a fluent way to
write queries in pure sql. The moor generator will figure out what your queries return and automatically generate the
boring mapping part. Head on to
[the documentation](https://moor.simonbinder.eu/queries/custom) to find out how to use this new feature.
Please note that this feature is in an experimental state: Expect minor, but breaking changes in the API and in the
generated code. Also, if you run into any issues with this feature,
[reporting them](https://github.com/simolus3/moor/issues/new) would be super appreciated.
## 1.4.0
- Added the `RealColumn`, which stores floating point values
- Better configuration for the serializer with the `JsonKey` annotation and the ability to use a
custom `ValueSerializer`
## 1.3.0
- Moor now supports table joins
- Added table aliases
- Default values for columns: Just use the `withDefault` method when declaring a column
- added expressions that resolve to the current date or time
- Fixed a crash that would occur if the first operation was a transaction
- Better support for custom expressions as part of a regular query
- Faster hashcode implementation in generated data classes
## 1.2.0
- __Breaking__: Generated DAO classes are now called `_$YourNameHere`, it used to be just `_YourNameHere` (without the
dollar sign)
- Blob data type
- `insertOrReplace` method for insert statements
- DAOs can now operate on transactions
- Custom constraints
- Query streams are now cached so that equal queries yield identical streams. This can improve performance.
## 1.1.0
- Transactions
## 1.0.0
- Initial version of the Moor library
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