I am running thinking-sphinx 2.0.10 on my Rails 3.1 environemt and indexing and searching works pretty well. When im searching on my User model, I want to do a wildcard search on the name of the user but not on the email so a user should only be returned if the given search string exactly matches the email of a user. I did some research and found out that this could be done by enabling the wildcard search within the define_index block with
set_property :enable_star => true
set_property :min_infix_len => 1
and adding :infixes => true to the indexes which should support wildcard search
define_index do
indexes "CONCAT(first_name, ' ', last_name)", :as => :user_name, :infixes => true
indexes email
has :id, :as => :user_id
set_property :enable_star => true
set_property :min_infix_len => 1
end
This is from the autogenerated development.sphinx.conf
index user_core
{
source = user_core_0
path = /../../../../db/sphinx/development/user_core
charset_type = utf-8
min_infix_len = 1
infix_fields = user_name
enable_star = 1
}
The infix_fields are declared correctly I guess.
The problem is that if I search for ".com" I still get all the Users with .com email address. What can be the reason for that?
Thanks for your help!
Sphinx indexes words in the input. Usually whole words only, but can enable part words with infix/prefix.
Anyway, anything not defined in charset_table (you dont have one so taking the default), is a seperator.
So "." is a separator. So your email will be indexed as words. "com" is a word in itself.
So searching for ".com" is just searching for "com" - ie still a whole-word match.
You could just add "." to your charset table to solve this. (but beware if it is used as a seperator in your data. if just indexing name and email, might not be an issue). Might want to add @ too, so that the whole email can be indexed as one 'word'.
I dont know how to put it your ruby config, I just know it needs to end up in the sphinx conf file.