本文整理汇总了Golang中github.com/couchbaselabs/query/value.Value.Fields方法的典型用法代码示例。如果您正苦于以下问题：Golang Value.Fields方法的具体用法？Golang Value.Fields怎么用？Golang Value.Fields使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/couchbaselabs/query/value.Value的用法示例。
在下文中一共展示了Value.Fields方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: Apply
/*
This method evaluates the Field using the first and second value
and returns the result value. If the second operand type is a
missing return a missing value. If it is a string, and the
field is case insensitive, then convert the second operand to
lower case, range through the fields of the first and compare,
each field with the second. When equal, return the value. If
the field is case sensitive, use the Field method to directly
access the field and return it. For all other types, if the
first operand expression is missing, return missing, else return
null.
*/
func (this *Field) Apply(context Context, first, second value.Value) (value.Value, error) {
switch second.Type() {
case value.STRING:
s := second.Actual().(string)
v, ok := first.Field(s)
if !ok && this.caseInsensitive {
s = strings.ToLower(s)
fields := first.Fields()
for f, val := range fields {
if s == strings.ToLower(f) {
return value.NewValue(val), nil
}
}
}
return v, nil
case value.MISSING:
return value.MISSING_VALUE, nil
default:
if first.Type() == value.MISSING {
return value.MISSING_VALUE, nil
} else {
return value.NULL_VALUE, nil
}
}
}