Btrim function is not working properly in PostgreSQL

Here, I have a problem in the va开发者_运维问答lue from trim() function in PostgreSQL:

Ruby code:

    if(this.modelName=="ClientOffice")
       {    this.params="model_name="+this.modelName+"&action_name="+this.actionName+"&
find_condition=btrim(clients_corporate_billings.id,' ') %3D 
btrim('"+validString('populateValue0','text')+"',' ')
  & object_id="+this.objectId;
      }

---

 &action_name="+this.actionName+"
    &find_condition=btrim(clients_corporate_billings.id,' ') %3D
     btrim('"+validString('populateValue0','text')+"',' ')

In above code, btrim is function of PostgreSQL for trimming but it gives/produce error.

---

From the documentation.

Function: btrim(string text [, characters text])
Return Type: text
Description: Remove the longest string consisting only of characters in characters (a space by default) from the start and end of string
Example: btrim('xyxtrimyyx', 'xy')
Result: trim

---

So you need to cast as text:

&find_condition=btrim(clients_corporate_billings.id::text,' ') %3D