blocks|key|81979|text|尝试向isValid布尔值属性添加@field:JvmField。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|81980|entityMap^0|3|7|H|F|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

Try adding <code>@field:JvmField</code> to <code>isValid</code> boolean property.

blocks|key|80238|text|如果在模型类中使用类型为Boolean的名为isVip的字段，则在使用以下代码行实例化Img类的对象时：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|80239|val+img+=+Img("Y9X+...+zYn",+true,+"Nombre",+"https://...")|code-block|syntax|javascript|80240|您的isVip属性在数据库中的外观将很简单：vip，而不是您可能预期的isVip。您的isVip属性之所以存储为isVip而不仅仅是vip，是因为您没有使用helper类在数据库中添加数据，而是以某种方式手动添加数据。|80241|出现该警告的原因是因为您的数据库中有一个字段，该字段在您的模型类中没有对应的。在您的模型类中，您有一个名为isVip的字段，该字段在数据库中应该有一个名为vip和的对应字段，而不是现在的+isVip。因此Firestore无法在这些字段之间创建连接，这就是为什么会出现该警告。|BOLD|80242|要解决此问题，您可以从数据库中删除(如果可能)旧数据，并使用模型类添加新数据。您需要在名为isVip的模型类中使用属性名称，并且在数据库中仅使用vip。|80243|或者，您可以将模型类中的属性名称从isVip更改为简单的vip，仅此而已。|80244|entityMap^0|C|7|M|5|17|3|0|0|2|5|M|3|Z|5|17|5|1K|5|1U|3|0|12|1J|2M|18|1H|5|25|3|2M|5|0|0|24|19|5|20|3|0|0|11|H|5|S|3|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]|$9|Y|A|Z|B|C]|$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|13|8|@$9|14|A|15|B|C]|$9|16|A|17|B|C]|$9|18|A|19|B|C]|$9|1A|A|1B|B|C]|$9|1C|A|1D|B|C]|$9|1E|A|1F|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|1G|8|@$9|1H|A|1I|B|O]|$9|1J|A|1K|B|O]|$9|1L|A|1M|B|C]|$9|1N|A|1O|B|C]|$9|1P|A|1Q|B|C]]|D|@]|E|$]]|$1|P|3|Q|5|6|7|1R|8|@$9|1S|A|1T|B|O]|$9|1U|A|1V|B|C]|$9|1W|A|1X|B|C]]|D|@]|E|$]]|$1|R|3|S|5|6|7|1Y|8|@$9|1Z|A|20|B|O]|$9|21|A|22|B|C]|$9|23|A|24|B|C]]|D|@]|E|$]]|$1|T|3|-4|5|6|7|25|8|@]|D|@]|E|$]]]|U|$]]

If you are using in your model class a field named <code>isVip</code> which is of type <code>Boolean</code>, when instantiating an object of your <code>Img</code> class using the following line of code:

<pre><code>val img = Img("Y9X ... zYn", true, "Nombre", "https://...")
</code></pre>

The way in which your <code>isVip</code> property will look like in your database will be simply: <code>vip</code> and not <code>isVip</code> as you probably expected. The resason that your <code>isVip</code> property is stored as <code>isVip</code> and not just <code>vip</code> is because you didn't add your data in the database using your helper class but somehow manually.

The reason you have that warning is because you have in your database a field which has no correspondent in your model class. In your model class you have a field named <code>isVip</code> which should have in the database a correspondent field named <code>vip</code> and not <code>isVip</code>, as it is now. So Firestore cannot create a connection between those fields and that's why you have that warning.

To solve this, you can remove (if is possible) the old data from your database and add fresh data using your model class. You need to have the name of your property in your model class named <code>isVip</code> and in your database just only <code>vip</code>.

Or you can change the name of your property in your modelc class from <code>isVip</code> to simply <code>vip</code> and that's it.

When pulling data from Firestore, I use <code>.toObject()</code> to map the data received into my data class, which is:

<pre><code>data class Img(var event_uid: String = "", var isVip: Boolean = false , var nombre: String = "", var url: String = "")
</code></pre>

However, the mapping is not doing well. I received the field <code>isVip=&gt;true</code> in the task, but the object field is mapped as false (default value).

<a href="https://i.stack.imgur.com/InFKv.png" rel="noreferrer"><img src="https://i.stack.imgur.com/InFKv.png" alt="snapshot data"></a>

<a href="https://i.stack.imgur.com/OT1CX.png" rel="noreferrer"><img src="https://i.stack.imgur.com/OT1CX.png" alt="list of mapped object"></a>

What am I doing wrong?

EDIT:
I see in Logcat

<pre><code>W/Firestore: (0.6.6-dev) [zzevb]: No setter/field for isVip found on class ***.model.Img
</code></pre>

According to <a href="https://kotlinlang.org/docs/reference/java-to-kotlin-interop.html#properties" rel="noreferrer">Kotlin Docu</a>:

<blockquote>
 If the name of the property starts with is, a different name mapping
 rule is used: the name of the getter will be the same as the property
 name, and the name of the setter will be obtained by replacing is with
 set. For example, for a property <code>isOpen</code>, the getter will be called
 <code>isOpen()</code> and the setter will be called <code>setOpen()</code>. This rule applies
 for properties of any type, not just <code>Boolean</code>.
</blockquote>

Maybe a Firestore with Kotlin issue?

Firebase Firestore toObject fails on Boolean property mapping

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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当从Firestore中提取数据时，我使用.toObject()将接收到的数据映射到我的数据类中，即：data class Img(var event_uid: String = "", var isVip: Boolean = false , var nombre: String = "", var url: Str...

问Firebase Firestore toObject在布尔属性映射上失败
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