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问题描述
在Grails领域类中,如何为String字段设置约束,使其MySQL列类型为TEXT或LONGTEXT?到目前为止我最好的方法是设置约束的大小:
pre $ myTextField(size:0..65535)
导致TEXT
myTextField(size :0..2147483646)
结果为LONGTEXT(2147483646 = 2 ^ 32/2 - 1 - 1 )
是否有更简洁的方式来指定尺寸?基本上我需要TEXT或LONGTEXT的全部范围,而不必硬编码一堆尺寸值。
您可以声明您的Domain类的映射关闭: 静态映射= {
myTextField类型:'text'
}
(见)
In a Grails domain class, how do I set the constraint for a String field so that its MySQL column type is TEXT or LONGTEXT?
So far my best approach is to set the constraint's size:
myTextField(size:0..65535)
which results in TEXT
myTextField(size:0..2147483646)
results in LONGTEXT (2147483646 = 2^32 / 2 - 1 - 1)
Is there a cleaner way to specify the size? Basically I want the full range of TEXT or LONGTEXT without having to hardcode a bunch of size values.
解决方案
You can declare that in the mapping closure of your Domain class:
static mapping = {
myTextField type: 'text'
}
(See ORM DSL Documentation)
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