我正在寻找一种解决方案来根据为空的参数（用户）恢复 get 中的数据：
{
"@context": "\/api\/contexts\/ShippingCost",
"@id": "\/api\/shipping_costs",
"@type": "hydra:Collection",
"hydra:member": [
{
"@id": "\/api\/shipping_costs\/1",
"@type": "ShippingCost",
"id": 1,
"minWeight": 0,
"maxWeight": 251,
"france": 4.87,
"domTom": 4.21,
"aerial": 3.84,
"zone": {
"@id": "\/api\/zones\/1",
"@type": "Zone",
"id": 1,
"name": "Guadeloupe",
"TaxFOB": 35,
"TaxSurete": 0.2,
"TaxFuel": 0.77,
"TaxGuerre": 0.24,
"Lta": 0,
"InfoDouane": 24,
"CreditEnlevement": 0,
"EntreposageCci": 0.4,
"EntreposageCciMin": 15,
"RemiseDoc": 43,
"Surete": 0,
"AvanceFond": 0,
"Tid": 13,
"Spia": 10,
"InterTransite": 50
},
"user": null
},
{
"@id": "\/api\/shipping_costs\/162",
"@type": "ShippingCost",
"id": 162, …