I am using ransack for search in my rails 3.2 application using postgres as database.
I have a Invoice model and every invoice belongs_to a buyer. Below is my search form in index page.
views/invoices/index.html.erb
<%= search_form_for #search do |f| %>
<%= f.text_field :buyer_name_cont %>
<%= f.submit "Search"%>
<% end %>
And here is my controller code.
controllers/invoices_controller.rb
def index
#search = Invoice.search(params[:q])
#invoices=#search.result(:distinct => true).paginate(:page => params[:page], :per_page => GlobalConstants::PER_PAGE )
respond_to do |format|
format.html # index.html.erb
format.json { render json: #invoices }
end
end
Let's say a invoice is there of a buyer having name "Bat Man".
If I search "Bat", I get the invoice in results.
Again if I search "Man", I get the invoice in results.
But if I search "Bat Man", I don't get the invoice in results.
I know it might be something trivial but I am not able to resolve.
Update
When I tried the sql query formed directly in database using pgAdmin, I realized that in database there were multiple spaces in the buyer name, something like "Bat.space.space.space.Man".
Can something be done so that "Bat.space.Man" search also finds "Bat.space.space.space.Man" in results?
You could sanitize your data. For instance with regexp_replace(). Run in the database once:
UPDATE invoice
SET buyer = regexp_replace(buyer, '\s\s+', ' ', 'g')
WHERE buyer <> regexp_replace(buyer, '\s\s+', ' ', 'g');
And sanitize new inserts & updates likewise.
\s .. class shorthand for "white space" (including tab or weird spaces).
The 4th parameter 'g' is for "globally", needed to replace all instances, not just the first.
Ransack not support cont search for multi terms, I solved the requirement my customized way. the details as following:
Add scope to your model:
scope :like_search, ->(column, value) {
keywords = value.to_s.split.map{ |k| "%#{k}%" }
where(Array.new(keywords.size, "#{column} ILIKE ?").join(' AND '), *keywords)
}
in your view. instead of using f.text_field :buyer_name_cont provided by ransack, use normal field helper text_field_tag :buyer_name, params[:buyer_name]
then restrict your ransack in scope:
scope = Invoice.like_search(:name , params[:buyer_name])
#q = scope.ransack(params[:q])
Related
I am trying implement a search/filter action on a model Production based on a column status. The column status is of integer type. Later for the purpose of readability I used enum datatype on status column as follows.
class Production < ApplicationRecord
enum status:{
Preproduction:1,
Postproduction: 2,
Completed:3
}
end
Then I started to work on a search/filter functionality to fetch the record based on the status given by the user.
productions_controller
def filter
if params[:filter]
#productions = Production.where('productions.status like ?', "%#{params[:filter]}%")
else
#productions = Production.all
end
end
view
<%= form_tag [:filter, :productions], :method => 'get' do %>
<p>
<%= text_field_tag :filter, params[:filter] %>
<%= submit_tag "Filter", :status => nil %>
</p>
<% end %>
Now I am able to query the record properly only if I enter the integer values like 1 2 or 3 in the text field. When I enter the status like Preproduction like I assigned, I am not getting the result. I am getting a blank page. How can I fix this ? How can I make it to accept the string and query successfully ?
You can do this...
#productions = Production.where('productions.status like ?', "%#{Production.statuses[params[:filter]]}%")
Enums have a pluralized class method, so enum status in Production has a hash
Production.statuses which looks like your status hash but with the symbols changed into strings.
I'm trying to write a row for my index table that filters my objects regarding a specific value of a specific column. What I have until now is this:
pimps_controller.rb:
def index
#pimps = Pimp.search(params[:search])
end
pimp.rb:
def self.search( search)
if search
where('title LIKE ?', "%#{search}%")
else
scoped
end
end
A part of view:
<%= text_field_tag :search, params[:search] %>
That filters after the objects title only so I tried to alter it to make it functional for different search fields that can filter after different attributes. I want to pass a second parameter value if someone fires the search function to make sure it triggers for the right attributes. That's what I've tried:
pimps_controller.rb
#pimps = Pimp.search(params[:search_column],params[:search])
pimp.rb:
def self.search(search_column, search)
if search
col = "%#{search_column}"
s = "%#{search}%"
where(col 'LIKE ?', s)
else
scoped
end
end
The view:
<%= text_field_tag :search, params[:search], params[:search_column => title] %>
But it's not working. I get an error message for passing the both parameters in one search field I guess. How would you do it?
Here's a simple tutorial on how to do it:
https://we.riseup.net/rails/simple-search-tutorial
In the model, you will have to add the fields with or condition to the query.
def self.search(search)
search_condition = "%" + search + "%"
find(:all, :conditions => ['title LIKE ? OR description LIKE ?', search_condition, search_condition])
end
If you want to define the field to search in the params you can use string interpolation with simple quotes:
%q(text contains "#{search.query}")
You need 2 text fields, one for the column, one for the value:
# view
<%= text_field_tag :search_value, params[:search_value] %>
<%= text_field_tag :search_column, params[:search_column] %>
# controller
#pimps = Pimp.search(params[:search_column], params[:search_value])
# Pimp model
def self.search(search_column, search_value)
if search_value.present? && search_column.present?
column = self.column_names.include?(search_column.to_s) ? search_column : 'title'
value = "%#{search_value}%"
where("#{self.table_name}.#{column} LIKE ?", value)
else
scoped
end
end
The problem about this method is that if you don't type the exact name of the column, it will search the value in the column title. I think you should use a select_tag, listing all searchable columns of the model:
# view
<%= select_tag :search_column, options_for_select(Pimp.column_names.map { |col| [col, col] }, params[:search_column]) %>
This view code will display a select tag with the available columns of the Pimp model. You can easily limit the searchable columns by defining a class method on Pimp:
# Pimp model
def searchable_columns
self.column_names - ['id', 'created_at', 'updated_at']
end
# view
<%= select_tag :search_column, options_for_select(Pimp.searchable_columns.map { |col| [col, col] }, params[:search_column]) %>
I'm using Ransack to allow advanced searching on my users. Currently, the users have first_name, middle_name, and last_name columns. Here is my code:
.field
= f.attribute_fields do |a|
= a.attribute_select
...
How can I have a custom one called 'Name', that lets the user search through all three of the columns mentioned above?
Note
I would still like to keep the remaining attributes as options as well, such as email, phone number, etc. Please keep this in mind when determining an answer.
I would suggest to provide a dedicated column for this search. While that might create redundant data, it is way easier to search than doing some SQL magic on the existing columns.
You can easily automate the setting of this field:
before_save :set_full_name
def set_full_name
self.full_name = [first_name, middle_name, last_name].reject(&:blank?).join(" ")
end
Then you can use the normal ransack methods to search this field.
Use this to search multiple fields:
= f.text_field(: first_name_or_middle_name_or_last_name_cont)
This will generate a query like this:
where first_name like '%q%' or middle_name like '%q%' or last_name like'%q%'
when you fill in a q as search parameter
Another approach is to search every attribute of the model, excluding only the fields that you don't want to search. To do this, you could create a custom helper method that builds the label and search field name expected by Ransack's search method. The following method (located in a helper) returns a concatenation of all attributes that you wish to search in a way that Ransack expects:
def most_attributes_cont
most_attributes = []
attributes_to_exclude = [
"id",
"created_at",
"updated_at"
]
ModelName.column_names.each do |column_name|
most_attributes << column_name unless column_name.in?(attributes_to_exclude)
end
most_attributes.join("_or_") + "_cont"
end
Then, just add the method call to your search form:
<%= search_form_for #q do |f| %>
<%= f.label most_attributes_cont %>
<%= f.search_field most_attributes_cont %>
<%= f.submit %>
<% end %>
Okay so im new to this site but this is what I have:
Report.rb
def self.search(search)
if search
where('JOBLETTER_CD_NUMBER LIKE ? AND DATE LIKE? AND CUST LIKE ?', "%#{search}%")
else
scoped
end
end
end
index.html.erb
select_tag "search", options_for_select([ "Job Letter and CD #", "Date", "Cust", "Job", "Date shipped", "Date billed", "Billed by" ], params[:search])
form_tag reports_path, :method => 'get' do
text_field_tag :search, params[:search], :class=> "form-search", :align => "right"
<%= submit_tag "Search", :JOBLETTER_CD_NUMBER => nil, :class => "btn btn-success", :align => "right"
reports controller
def index
#report = Report.paginate(:per_page => 1, :page => params[:page])
#report = Report.search(params[:search]).paginate(:per_page => 1, :page => params[:page])
respond_to do |format|
format.html # index.html.erb
format.json { render :json => #views }
end
end
The only field it will search is the Job Letter and CD # field I need it to allow me to search whatever is selected in the drop down box. Btw I am using bootstrap fro js and css functions.
Your query has 3 placeholders ? but passed only one argument "#{search}" - if you run it like that, what you really should be getting is an exceptions stating
ActiveRecord::PreparedStatementInvalid: wrong number of bind variables (1 for 3) ...
Also, your select_tag is outside the form, so it won't be passed to the controller at all. If you move it into the form, you'd have to rename (e.g. to column) it since the name search is already used by the text field. Then you could pass both the column and the search parameters to your search function to construct the query.
HOWEVER, this is not safe, since nothing prevents a user to pass in any other column by manipulating the post request, and since you can't use placeholders for column names, there's a danger of SQL injection as well.
There are many solutions out there to construct searches, no need to reinvent the wheel. Take a look at the ransack gem. Here's a recent Railscast on how to use it.
I have built a blog application w/ ruby on rails and I am trying to implement a search feature. The blog application allows for users to tag posts. The tags are created in their own table and belong_to :post. When a tag is created, so is a record in the tag table where the name of the tag is tag_name and associated by post_id. Tags are strings.
I am trying to allow a user to search for any word tag_name in any order. Here is what I mean. Lets say a particular post has a tag that is 'ruby code controller'. In my current search feature, that tag will be found if the user searches for 'ruby', 'ruby code', or 'ruby code controller'. It will not be found if the user types in 'ruby controller'.
Essentially what I am saying is that I would like each word entered in the search to be searched for, not necessarily the 'string' that is entered into the search.
I have been experimenting with providing multiple textfields to allow the user to type in multiple words, and also have been playing around with the code below, but can't seem to accomplish the above. I am new to ruby and rails so sorry if this is an obvious question and prior to installing a gem or plugin I thought I would check to see if there was a simple fix. Here is my code:
View: /views/tags/index.html.erb
<% form_tag tags_path, :method => 'get' do %>
<p>
<%= text_field_tag :search, params[:search], :class => "textfield-search" %>
<%= submit_tag "Search", :name => nil, :class => "search-button" %>
</p>
<% end %>
TagsController
def index
#tags = Tag.search(params[:search]).paginate :page => params[:page], :per_page => 5
#tagsearch = Tag.search(params[:search])
#tag_counts = Tag.count(:group => :tag_name,
:order => 'count_all DESC', :limit => 100)
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => #tags }
end
end
Tag Model
class Tag < ActiveRecord::Base
belongs_to :post
validates_length_of :tag_name, :maximum=>42
validates_presence_of :tag_name
def self.search(search)
if search
find(:all, :order => "created_at DESC", :conditions => ['tag_name LIKE ?', "%#{search}%"])
else
find(:all, :order => "created_at DESC")
end
end
end
If I read your problem correctly, you want to return a row if the tag names for the row matches one of the words passed in the query string.
You can rewrite your search method as follows:
def self.search(search)
all :conditions => (search ? { :tag_name => search.split} : [])
end
If you need partial matching then do the following:
def self.search(str)
return [] if str.blank?
cond_text = str.split.map{|w| "tag_name LIKE ? "}.join(" OR ")
cond_values = str.split.map{|w| "%#{w}%"}
all(:conditions => (str ? [cond_text, *cond_values] : []))
end
Edit 1
If you want pass multiple search strings then:
def self.search(*args)
return [] if args.blank?
cond_text, cond_values = [], []
args.each do |str|
next if str.blank?
cond_text << "( %s )" % str.split.map{|w| "tag_name LIKE ? "}.join(" OR ")
cond_values.concat(str.split.map{|w| "%#{w}%"})
end
all :conditions => [cond_text.join(" AND "), *cond_values]
end
Now you can make calls such as:
Tag.search("Ruby On Rails")
Tag.search("Ruby On Rails", "Houston")
Tag.search("Ruby On Rails", "Houston", "TX")
Tag.search("Ruby On Rails", "Houston", "TX", "Blah")
Tag.search("Ruby On Rails", "Houston", "TX", "Blah", ....) # n parameters
Caveat:
The wild card LIKE searches are not very efficient(as they don't use the index). You should consider using Sphinx (via ThinkingSphinx) OR Solr(via SunSpot) if you have lot of data.
You can try to set up ferret, or if you are really bend on just using rails, try this:
# Break the search string into words
words = params[:search].blank? ? [] : params[:search].split(' ')
conditions = [[]] # Why this way? You'll know soon
words.each do |word|
conditions[0] << ["tag_name LIKE ?"]
conditions << "%#{word}%"
end
conditions[0] = conditions.first.join(" OR ") # Converts condition string to include " OR " easily ;-)
# Proceed to find using `:conditions => conditions` in your find
hope this helps =)
Sounds like you need a full text search. The best search integration right now is with Sphinx and the Thinking_Sphinx plugin. I have used it on several projects and it's super easy to setup.
You do need to install sphinx on your host so if you are using a shared host that could present some issues.
You could also use full text search in a MyISAM MySQL database, but performance on that is pretty poor.
Once you have your sphinx installed you just put what you want to index in your model and call model.search. The results will be a list of model objects. It supports will_paginate as well.
I'd suggest looking at Searchlogic if you don't want to use a separate fulltext search engine (Ferret, Sphinx, etc). It makes simple searches extremely easy, although you may not want to use it in a public facing area without lots of testing.
Also check out the Railscast on it: http://railscasts.com/episodes/176-searchlogic
1.You can do some coding in your controller post as such:-
<pre>
def show
#post = Post.find(params[:id])
#tag_counts = Tag.count(:group => :name, :order => 'updated_at DESC', :limit => 10)
respond_to do |format|
format.html # show.html.erb
format.json { render json: #post }
end
end
</pre>
2.Now make some changes in your view file:-
<pre>
<b>Tags:</b>
<%= join_tags(#post) %>
<%unless #tag_counts.nil?%>
<% #tag_counts.each do |tag_name, tag_count| %>
<tr><td><%= link_to(tag_name, posts_path(:name => tag_name)) %></td>
<td>(<%=tag_count%>)</td>
</tr><% end %>
<%end%>
</pre>
3. And one important thing is that there should be many to many relationship between tags and post.