我有2个关系的模型。我想在每个关系上添加条件。
例如，给我显示一个房间，日期为4/11/2019，城市为london
控制器：
$test = Property::with('dates','details')->get();
$ test结果：
可能有点长，但是我扩展了整个结果，因此您可以检查关系，因为日期处于关键关系中：
Collection {#1708 ▼
#items: array:2 [▼
0 => Property {#1457 ▼
#guarded: []
#connection: "mysql"
#table: "properties"
#primaryKey: "id"
#keyType: "int"
+incrementing: true
#with: []
#withCount: []
#perPage: 15
+exists: true
+wasRecentlyCreated: false
#attributes: array:8 [▶]
#original: array:8 [▶]
#changes: []
#casts: []
#dates: []
#dateFormat: null
#appends: []
#dispatchesEvents: []
#observables: []
#relations: array:2 [▼
"dates" => Collection {#1607 ▼
#items: array:1 [▼
0 => Date {#1600 ▼
#connection: "mysql"
#table: "dates"
#primaryKey: "id"
#keyType: "int"
+incrementing: true
#with: []
#withCount: []
#perPage: 15
+exists: true
+wasRecentlyCreated: false
#attributes: array:7 [▶]
#original: array:9 [▶]
#changes: []
#casts: []
#dates: []
#dateFormat: null
#appends: []
#dispatchesEvents: []
#observables: []
#relations: array:1 [▼
"pivot" => Pivot {#1602 ▼
+incrementing: false
#guarded: []
#connection: null
#table: "date_property"
#primaryKey: "id"
#keyType: "int"
#with: []
#withCount: []
#perPage: 15
+exists: true
+wasRecentlyCreated: false
#attributes: array:2 [▶]
#original: array:2 [▶]
#changes: []
#casts: []
#dates: []
#dateFormat: null
#appends: []
#dispatchesEvents: []
#observables: []
#relations: []
#touches: []
+timestamps: false
#hidden: []
#visible: []
#fillable: []
+pivotParent: Property {#1461 ▶}
#foreignKey: "property_id"
#relatedKey: "date_id"
}
]
#touches: []
+timestamps: true
#hidden: []
#visible: []
#fillable: []
#guarded: array:1 [▶]
}
]
}
"details" => PropertyDetail {#1702 ▼
#fillable: array:7 [▶]
#connection: "mysql"
#table: "property_details"
#primaryKey: "id"
#keyType: "int"
+incrementing: true
#with: []
#withCount: []
#perPage: 15
+exists: true
+wasRecentlyCreated: false
#attributes: array:10 [▶]
#original: array:10 [▼
"id" => 52
"property_id" => 65
"state" => "london"
"city" => "london"
"address" => "5"
"post_code" => 5
"placearea" => 1
"telephone" => 5
"created_at" => "2019-04-09 21:03:10"
"updated_at" => "2019-04-09 21:03:10"
]
#changes: []
#casts: []
#dates: []
#dateFormat: null
#appends: []
#dispatchesEvents: []
#observables: []
#relations: []
#touches: []
+timestamps: true
#hidden: []
#visible: []
#guarded: array:1 [▶]
}
]
#touches: []
+timestamps: true
#hidden: []
#visible: []
#fillable: []
}
1 => Property {#1458 ▶}
]
}
答案 0 :(得分：2)
您可以这样做，
$data = Property::with(['dates' => function ($query) {
$query->where('datefield', 'like', '4/11/2019'); // datefield I ain't saw in your output, you can replace it
}],['details' => function ($query) {
$query->where('city', 'like', 'london');
}])->get();
dd($data);
请参阅文档here。
我希望表中的日期格式为m/d/Y，如果不必，请按照以下步骤操作。
$date = date("Y-m-d",strtotime(str_replace("/","-",$yourdate)));
您可以使用$date变量代替4/11/2019。
注意：通过查看，可以消除m / d / y或d-m-y格式的日期的歧义。 在各个组件之间的分隔符处：如果分隔符是 斜线（/），则假定为美国m / d / y；而如果 分隔符是破折号（-）或点（。），然后是欧洲d-m-y格式 假设。但是，如果年份以两位数格式给出，并且 分隔符为破折号（-，日期字符串被解析为y-m-d。
编辑
$property = Property::with(['dates' => function ($query) {
$query->where('datefield', 'like', '4/11/2019');
}])->get();
答案 1 :(得分：1)
最重要的是日期字段和城市应该使用相等的条件，而不是like条件。
注意事项：：您应该检查日期格式以获取正确的数据输出。
$data = Property::with(['dates' => function ($query) {
$query->where('your_date_field', '=', '4/11/2019');
}],['details' => function ($query) {
$query->where('city', '=', 'london');
}])->get();
您还可以使用whereDate()函数比较日期字段。
$data = Property::with(['dates' => function ($query) {
$query->whereDate('your_date_field', '4/11/2019');
}],['details' => function ($query) {
$query->where('city', '=', 'london');
}])->get();
答案 2 :(得分：1)
也许您可以尝试
$property = Property::with(['dates' => function ($query) {
$query->whereDate('datefield', '4/11/2019');
}])->get();
，您不需要LIKE。请参见documentation，我并不是说LIKE无效，但是使用=或whereDate会更准确。
您可以尝试
$data = Property::with(['dates' => function ($query) {
$query->whereDate('your_date_field', '=', '4/11/2019');
}],['details' => function ($query) {
$query->where('city', 'london');
}])->get();
或
$data = Property::whereHas('dates', function($query){
$query->where('your_date_field', '4/11/2019');
})->whereHas('city', function($query){
$query->where('city', 'london');
})->get();
答案 3 :(得分：1)
如果要按实体之间的关系条件过滤实体，则需要whereHas()（请参见Querying Relationship Existence）：
$searchDate = '2019-04-11';
$searchCity = 'london';
$test = Property::with('dates','details')
->whereHas('dates', function($query) use($searchDate) {
$query->where('date', $searchDate);
})
->whereHas('details', function($query) use($searchCity) {
$query->where('city', $searchCity);
})
->get();
如果您还希望按相同条件过滤返回的关系，则可以在with()（请参阅Constraining Eager Loads）内进行操作：
$test = Property::with(['details', 'dates' => function($query) use($searchDate) {
$query->where('date', $searchDate);
}])
->whereHas('dates', function($query) use($searchDate) {
$query->where('date', $searchDate);
})
->whereHas('details', function($query) use($searchCity) {
$query->where('city', $searchCity);
})
->get();
您只需要对dates进行此操作，因为只能存在一个details关系，该关系已被约束为'london'。
答案 4 :(得分：0)
您可以尝试以下方法：
$data = Property::with([
'dates' => function ($query) {
$query->whereDate('your_date_field', 'formatted_date');
},
'details' => function ($query) {
$query->where('city', '=', 'london');
}
])->get();
如果仅需要属性的详细信息，而无需关系数据，则可以尝试：
whereHas