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1.0.0

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thosakwe 2017-03-04 16:00:17 -05:00
parent 012c323e0c
commit b67ddeb444
11 changed files with 201 additions and 30 deletions
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2
README.md
View file

@ -1,5 +1,5 @@
# relations
[![version 1.0.0-alpha](https://img.shields.io/badge/pub-v1.0.0--alpha-red.svg)](https://pub.dartlang.org/packages/angel_relations)
[![version 1.0.0](https://img.shields.io/badge/pub-v1.0.0-brightgreen.svg)](https://pub.dartlang.org/packages/angel_relations)
[![build status](https://travis-ci.org/angel-dart/relations.svg)](https://travis-ci.org/angel-dart/relations)
Database-agnostic relations between Angel services.

17
lib/src/belongs_to.dart
View file

@ -17,20 +17,19 @@ HookedServiceEventListener belongsTo(Pattern servicePath,
String localKey,
getForeignKey(obj),
assignForeignObject(foreign, obj)}) {
return (HookedServiceEvent e) async {
var ref = e.service.app.service(servicePath);
var foreignName = as?.isNotEmpty == true
? as
: pluralize.singular(servicePath.toString());
if (ref == null) throw noService(servicePath);
String localId = localKey;
var foreignName =
as?.isNotEmpty == true ? as : pluralize.singular(servicePath.toString());
if (localId == null) {
localId = foreignName + 'Id';
print('No local key provided for belongsTo, defaulting to \'$localId\'.');
// print('No local key provided for belongsTo, defaulting to \'$localId\'.');
}
return (HookedServiceEvent e) async {
var ref = e.service.app.service(servicePath);
if (ref == null) throw noService(servicePath);
_getForeignKey(obj) {
if (getForeignKey != null)
return getForeignKey(obj);
@ -62,7 +61,7 @@ HookedServiceEventListener belongsTo(Pattern servicePath,
'query': {foreignKey ?? 'id': id}
});
if (indexed?.isNotEmpty != true) {
if (indexed == null || indexed is! List || indexed.isNotEmpty != true) {
await _assignForeignObject(null, obj);
} else {
var child = indexed.first;

78
lib/src/belongs_to_many.dart Normal file
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@ -0,0 +1,78 @@
import 'dart:async';
import 'dart:mirrors';
import 'package:angel_framework/angel_framework.dart';
import 'plural.dart' as pluralize;
import 'no_service.dart';
/// Represents a relationship in which the current [service] "belongs to"
/// multiple members of the service at [servicePath]. Use [as] to set the name
/// on the target object.
///
/// Defaults:
/// * [foreignKey]: `userId`
/// * [localKey]: `id`
HookedServiceEventListener belongsToMany(Pattern servicePath,
{String as,
String foreignKey,
String localKey,
getForeignKey(obj),
assignForeignObject(List foreign, obj)}) {
String localId = localKey;
var foreignName =
as?.isNotEmpty == true ? as : pluralize.plural(servicePath.toString());
if (localId == null) {
localId = foreignName + 'Id';
// print('No local key provided for belongsToMany, defaulting to \'$localId\'.');
}
return (HookedServiceEvent e) async {
var ref = e.service.app.service(servicePath);
if (ref == null) throw noService(servicePath);
_getForeignKey(obj) {
if (getForeignKey != null)
return getForeignKey(obj);
else if (obj is Map)
return obj[localId];
else if (obj is Extensible)
return obj.properties[localId];
else if (localId == null || localId == 'userId')
return obj.userId;
else
return reflect(obj).getField(new Symbol(localId)).reflectee;
}
_assignForeignObject(foreign, obj) {
if (assignForeignObject != null)
return assignForeignObject(foreign, obj);
else if (obj is Map)
obj[foreignName] = foreign;
else if (obj is Extensible)
obj.properties[foreignName] = foreign;
else
reflect(obj).setField(new Symbol(foreignName), foreign);
}
_normalize(obj) async {
if (obj != null) {
var id = await _getForeignKey(obj);
var indexed = await ref.index({
'query': {foreignKey ?? 'id': id}
});
if (indexed == null || indexed is! List || indexed.isNotEmpty != true) {
await _assignForeignObject(null, obj);
} else {
var child = indexed is Iterable ? indexed.toList() : [indexed];
await _assignForeignObject(child, obj);
}
}
}
if (e.result is Iterable) {
await Future.wait(e.result.map(_normalize));
} else
await _normalize(e.result);
};
}

7
lib/src/has_many.dart
View file

@ -17,16 +17,13 @@ HookedServiceEventListener hasMany(Pattern servicePath,
String localKey,
getLocalKey(obj),
assignForeignObjects(foreign, obj)}) {
return (HookedServiceEvent e) async {
var ref = e.service.app.service(servicePath);
var foreignName =
as?.isNotEmpty == true ? as : pluralize.plural(servicePath.toString());
if (ref == null) throw noService(servicePath);
if (foreignKey == null)
print(
'WARNING: No foreign key provided for hasMany, defaulting to \'userId\'.');
_getLocalKey(obj) {
if (getLocalKey != null)
return getLocalKey(obj);
@ -58,7 +55,7 @@ HookedServiceEventListener hasMany(Pattern servicePath,
'query': {foreignKey ?? 'userId': id}
});
if (indexed?.isNotEmpty != true) {
if (indexed == null || indexed is! List || indexed.isNotEmpty != true) {
await _assignForeignObjects([], obj);
} else {
await _assignForeignObjects(indexed, obj);

100
lib/src/has_many_through.dart Normal file
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@ -0,0 +1,100 @@
import 'dart:async';
import 'dart:mirrors';
import 'package:angel_framework/angel_framework.dart';
import 'plural.dart' as pluralize;
import 'no_service.dart';
HookedServiceEventListener hasManyThrough(String servicePath, String pivotPath,
{String as,
String localKey,
String pivotKey,
String foreignKey,
getLocalKey(obj),
getPivotKey(obj),
getForeignKey(obj),
assignForeignObjects(foreign, obj)}) {
var foreignName =
as?.isNotEmpty == true ? as : pluralize.plural(servicePath.toString());
return (HookedServiceEvent e) async {
var pivotService = e.getService(pivotPath);
var foreignService = e.getService(servicePath);
if (pivotService == null)
throw noService(pivotPath);
else if (foreignService == null) throw noService(servicePath);
_assignForeignObjects(foreign, obj) {
if (assignForeignObjects != null)
return assignForeignObjects(foreign, obj);
else if (obj is Map)
obj[foreignName] = foreign;
else if (obj is Extensible)
obj.properties[foreignName] = foreign;
else
reflect(obj).setField(new Symbol(foreignName), foreign);
}
_getLocalKey(obj) {
if (getLocalKey != null)
return getLocalKey(obj);
else if (obj is Map)
return obj[localKey ?? 'id'];
else if (obj is Extensible)
return obj.properties[localKey ?? 'id'];
else if (localKey == null || localKey == 'id')
return obj.id;
else
return reflect(obj).getField(new Symbol(localKey ?? 'id')).reflectee;
}
_getPivotKey(obj) {
if (getPivotKey != null)
return getPivotKey(obj);
else if (obj is Map)
return obj[pivotKey ?? 'id'];
else if (obj is Extensible)
return obj.properties[pivotKey ?? 'id'];
else if (pivotKey == null || pivotKey == 'id')
return obj.id;
else
return reflect(obj).getField(new Symbol(pivotKey ?? 'id')).reflectee;
}
_normalize(obj) async {
// First, resolve pivot
var id = await _getLocalKey(obj);
var indexed = await pivotService.index({
'query': {pivotKey ?? 'userId': id}
});
if (indexed == null || indexed is! List || indexed.isNotEmpty != true) {
await _assignForeignObjects([], obj);
} else {
// Now, resolve from foreign service
var mapped = await Future.wait(indexed.map((pivot) async {
var id = await _getPivotKey(obj);
var indexed = await foreignService.index({
'query': {foreignKey ?? 'postId': id}
});
if (indexed == null ||
indexed is! List ||
indexed.isNotEmpty != true) {
await _assignForeignObjects([], pivot);
} else {
await _assignForeignObjects(indexed, pivot);
}
return pivot;
}));
await _assignForeignObjects(mapped, obj);
}
}
if (e.result is Iterable) {
await Future.wait(e.result.map(_normalize));
} else
await _normalize(e.result);
};
}

7
lib/src/has_one.dart
View file

@ -17,6 +17,7 @@ HookedServiceEventListener hasOne(Pattern servicePath,
String localKey,
getLocalKey(obj),
assignForeignObject(foreign, obj)}) {
return (HookedServiceEvent e) async {
var ref = e.service.app.service(servicePath);
var foreignName = as?.isNotEmpty == true
@ -24,10 +25,6 @@ HookedServiceEventListener hasOne(Pattern servicePath,
: pluralize.singular(servicePath.toString());
if (ref == null) throw noService(servicePath);
if (foreignKey == null)
print(
'WARNING: No foreign key provided for hasOne, defaulting to \'userId\'.');
_getLocalKey(obj) {
if (getLocalKey != null)
return getLocalKey(obj);
@ -59,7 +56,7 @@ HookedServiceEventListener hasOne(Pattern servicePath,
'query': {foreignKey ?? 'userId': id}
});
if (indexed?.isNotEmpty != true) {
if (indexed == null || indexed is! List || indexed.isNotEmpty != true) {
await _assignForeignObject(null, obj);
} else {
var child = indexed.first;

2
pubspec.yaml
View file

@ -2,7 +2,7 @@ author: Tobe O <thosakwe@gmail.com>
description: Database-agnostic relations between Angel services.
homepage: "https://github.com/angel-dart/relations.git"
name: angel_relations
version: 1.0.0-alpha
version: 1.0.0
environment:
sdk: ">=1.19.0"
dependencies:

4
test/belongs_to_test.dart
View file

@ -9,8 +9,8 @@ main() {
setUp(() async {
app = new Angel()
..use('/authors', new MapService())
..use('/books', new MapService());
..use('/authors', new CustomMapService())
..use('/books', new CustomMapService());
await app.configure(seed(
'authors',

2
test/common.dart
View file

@ -1,7 +1,7 @@
import 'package:angel_framework/angel_framework.dart';
import 'package:json_god/json_god.dart' as god;
class MapService extends Service {
class CustomMapService extends Service {
final List<Map> _items = [];
Iterable<Map> tailor(Iterable<Map> items, Map params) {

4
test/has_many_test.dart
View file

@ -9,8 +9,8 @@ main() {
setUp(() async {
app = new Angel()
..use('/authors', new MapService())
..use('/books', new MapService());
..use('/authors', new CustomMapService())
..use('/books', new CustomMapService());
await app.configure(seed(
'authors',

4
test/has_one_test.dart
View file

@ -9,8 +9,8 @@ main() {
setUp(() async {
app = new Angel()
..use('/authors', new MapService())
..use('/books', new MapService());
..use('/authors', new CustomMapService())
..use('/books', new CustomMapService());
await app.configure(seed(
'authors',