How to search product data by id and name in one query - ruby-on-rails

Question

I have a index named product in elastic-search with field id, name etc..
I want to search products by id or name but my id field is integer and name is a text, I tried following but getting error while searching by name.
error type":"number_format_exception","reason":"For input string:
\"test\""
def self.search_by_name_or_id(query)
__elasticsearch__.search({
query: {
bool: {
must:{
multi_match: {
query: query,
fields: ["id", "name"]
}
}
}
}
})
end

Answer 1

Problem
Exception is clear, that you are trying to search test which is a String in the integer field and elasticsearch is not able to convert test in integer, instead of test if you had search for 10 or 100, then elasticsearch would convert it into integer and would not throw the exception.
Solution
You are trying to mix 2 things here, I am not sure about your design but if your id field can contain pure numbers i.e. integers, then it's not possible to achieve in a single query the way you are doing.
If you can convert your id field to String, then multi_match query would work perfectly fine, otherwise, you need to first check in your application, that search term can be converted to number or not, i.e. 10 or 100 would work fine but test10 or test100 would not and anyway there is no point of searching these terms in id field as it won't be present as its defined as integer in ES and ES would reject documents containing these terms during indexing time only. So based on your application code check you can construct the ES query which may or may not include the id field in multi-match.