我有以下架构。我已经尽力实现了它，但是它仍然没有按照我想要的那样工作。
{
"$schema": "http://json-schema.org/draft-07/schema#",
"type": "object",
"title": "Ordering pizza",
"propertyNames": {
"enum": [
"q-who-did-you-order-from",
"q-did-they-accept-your-order",
"q-how-much-was-the-bill",
"q-why-didnt-they-accept"
]
},
"properties": {
"q-who-did-you-order-from": {
"type": "string",
"title": "Who have you ordered pizza from?",
"maxLength": 50,
"errorMessages": {
"required": "Enter who you ordered from",
"maxLength":
"Who you ordered from must be 50 characters or less"
}
},
"q-did-they-accept-your-order": {
"title": "Have they accepted your order?",
"type": "boolean",
"errorMessages": {
"required":
"Select yes if they have accepted your order"
}
},
"q-how-much-was-the-bill": {
"type": "string",
"title": "How much was the bill?",
"maxLength": 50,
"errorMessages": {
"required": "Enter an amount",
"maxLength": "Amount must be 50 characters or less"
}
},
"q-why-didnt-they-accept": {
"type": "string",
"title": "Why wasnt your order accepted?",
"description":
"If you do not know you can say so.",
"maxLength": 50,
"errorMessages": {
"required": "Enter a reason",
"maxLength": "Reason must be 50 characters or less"
}
}
},
"required": ["q-who-did-you-order-from", "q-did-they-accept-your-order"],
"allOf": [
{
"$ref": "#/definitions/if-false-then-q-why-didnt-they-accept-is-required"
},
{
"$ref": "#/definitions/if-true-then-q-how-much-was-the-bill-is-required"
}
],
"definitions": {
"if-false-then-q-why-didnt-they-accept-is-required": {
"if": {
"properties": {
"q-did-they-accept-your-order": {
"const": false
}
}
},
"then": {
"required": ["q-why-didnt-they-accept"],
"propertyNames": {
"enum": [
"q-who-did-you-order-from",
"q-did-they-accept-your-order",
"q-why-didnt-they-accept"
]
}
}
},
"if-true-then-q-how-much-was-the-bill-is-required": {
"if": {
"properties": {
"q-did-they-accept-your-order": {
"const": true
}
}
},
"then": {
"required": ["q-how-much-was-the-bill"],
"propertyNames": {
"enum": [
"q-who-did-you-order-from",
"q-did-they-accept-your-order",
"q-how-much-was-the-bill"
]
}
}
}
}
}
期望的是，用户将输入“您订购的q”和“您接受订购的q”的值，然后根据他们的答案仅输入其余两个问题之一对于q，他们接受您的订单了。
因此，以下输入应有效：
{
"q-did-you-order-from": "Pizza hut",
"q-did-they-accept-your-order": "true",
"q-how-much-was-the-bill": "20"
}
{
"q-did-you-order-from": "Pizza hut",
"q-did-they-accept-your-order": "false",
"q-why-didn't-they-accept": "Incorrect card details"
}
类似地，我希望以下输入无法通过验证，并为包含空白字符串的字段抛出“必需”错误。第一个应该抛出错误，因为q-为什么不接受它们为空：
{
"q-did-you-order-from": "Pizza hut",
"q-did-they-accept-your-order": "false",
"q-why-didn't-they-accept": ""
}
这个应该抛出一个错误，因为q-多少钱是空的。
{
"q-did-you-order-from": "Pizza hut",
"q-did-they-accept-your-order": "true",
"q-how-much-was-the-bill": ""
}
确实如此！这按预期工作。但是，我们发现了一个错误，该错误是由于用户没有输入q-是否接受他们的订单的答案而引起的。这些问题的答案在表单提交时通过浏览器发布。在浏览器中，布尔值问题显示为是/否单选按钮。结果，当用户不检查任何一个收音机，而是尝试提交表单时，将完全省略收音机的答案。发送的数据对象如下所示：
{
"q-did-you-order-from": "Pizza hut",
"q-how-much-was-the-bill": "",
"q-why-didn't-they-accept": "",
}
我在这里的预期结果：
AJV仅对q接受您的订单抛出一个“必需”错误。它不应该对其他任何东西抛出“必需”错误，因为不需要q多少票据和为什么不接受q，除非q的相关值是-他们接受您的订单。
我的实际结果：
AJV对所有三个空输入都引发错误。
所以我的问题是，如何使AJV验证此模式，并且在问题没有得到回答时，仅q-did-他们接受您的订单就引发所需的错误。
编辑：
AJV的输出如下：
[
{
"keyword": "required",
"dataPath": "",
"schemaPath": "#/required",
"params": {
"missingProperty": "q-did-they-accept-your-order"
},
"message": "should have required property 'q-did-they-accept-your-order'"
},
{
"keyword": "required",
"dataPath": "",
"schemaPath": "#/definitions/if-false-then-q-why-didnt-they-accept-is-required",
"params": {
"missingProperty": "q-why-didnt-they-accept"
},
"message": "should have required property 'q-why-didnt-they-accept'"
},
{
"keyword": "if",
"dataPath": "",
"schemaPath": "#/definitions/if-false-then-q-why-didnt-they-accept-is-required/if",
"params": {
"failingKeyword": "then"
},
"message": "should match \"then\" schema"
},
{
"keyword": "required",
"dataPath": "",
"schemaPath": "#/definitions/if-true-then-q-how-much-was-the-bill-is-required/then/required",
"params": {
"missingProperty": "q-how-much-was-the-bill"
},
"message": "should have required property 'q-how-much-was-the-bill'"
},
{
"keyword": "if",
"dataPath": "",
"schemaPath": "#/definitions/if-true-then-q-how-much-was-the-bill-is-required/if",
"params": {
"failingKeyword": "then"
},
"message": "should match \"then\" schema"
}
]
答案 0 :(得分：1)
您的if / then模式应用程序缺少一部分。让我们以这个简单的模式为例。
{
"if": {
"properties": {
"foo": { "const": true }
}
},
"then": {
"required": ["bar"]
}
}
如果我根据此架构验证{}，则将失败，要求提供属性“ bar”。由于/if模式不需要“ foo”属性，因此{}是有效的，因此/then模式适用。要解决此问题，您只需要使“ foo”属性成为必需。
{
"if": {
"properties": {
"foo": { "const": true }
},
"required": ["foo"]
},
"then": {
"required": ["bar"]
}
}
现在，{}对模式有效。 /then模式仅在存在“ foo”属性且其值为true时适用。