如何在azure-mobile-apps-js-client中使用substringof [英] How to use substringof in azure-mobile-apps-js-client

问题描述

我想通过azure-mobile-apps-js-client使用odata substringof方法. 当前，我使用indexof方法，但想切换到substringof.

I want to make use of odata substringof method using azure-mobile-apps-js-client. Currently I use indexof method but want to switch to substringof.

我有此代码

function queryFunction(term){
     return this.FullName.indexOf(term) != -1
}
table.where(queryFunction, term)

翻译为

$filter=indexof(FullName, term) ne -1

我需要这样的网址:

filter=substringof(term, FullName) eq true

如何使用javascript做到这一点?

How do I do that with javascript ?

推荐答案

azure-query-js支持一组有限的Javascript函数，这些函数可以转换为它们的odata等效项.当前，没有可以映射到substringof的功能.使用indexOf的原始实现是使用Javascript样式查询来查询子字符串的最佳选择.

azure-query-js supports a limited set of Javascript functions that are translated to their odata equivalents. Currently, there is no function that can be mapped to substringof. Your original implementation using indexOf is your best bet for querying for substrings using Javascript style querying.

但是，如果希望完全控制自己的查询，则可以将OData查询字符串直接传递给read方法. https://github.com/Azure/azure-mobile-apps-js-client/blob/2b5e083d400a089cb1759d6d58d96e4d10ba2310/sdk/test/tests/shared/mobileServiceTables.js#L98 是一个示例.如果您在文件中搜索'$filter'，则会找到更多示例.

However, if you wish to take complete control of querying yourself, you can directly pass an OData query string to the read method. https://github.com/Azure/azure-mobile-apps-js-client/blob/2b5e083d400a089cb1759d6d58d96e4d10ba2310/sdk/test/tests/shared/mobileServiceTables.js#L98 is an example. If you search for '$filter' in the file you will find a few more examples.

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