Multi keyword search - ruby-on-rails

I currently have a basic search that will allow me to type in a word and it will return back all records that are like that search. It is as followed:
application.html.erb
<%= form_tag games_path, :method => 'get' do %>
<%= hidden_field_tag :direction, params[:direction] %>
<%= hidden_field_tag :sort, params[:sort] %>
<%= text_field_tag :search, params[:search] %>
<%= submit_tag t('.searchb'), :game_name => nil %>
<% end %>
controller and Model
#games = Game.search(params[:search])
def self.search(search)
search = search.to_s.strip.split
search.inject(scoped) do |combined_scope, search|
combined_scope.where(['game_name LIKE ? OR genre LIKE ? OR console LIKE ?', "%#{search}%", "%#{search}%", "%#{search}%"])
end
end
What I now wish to do though is the ability to enter multiple words in to the search bar and have it return all related records to those words rather than any record that has them all.
e.g. If I type fighting, action
I want it to return all fighting games and all action games.
How would I go about implementing this?
Model:
EDIT

You should use a fulltext search engine like Sphinx for this! There is a gem called thinking-sphinx wich offers an interface between ruby and the Sphinx server! The only downside is that you need to update the database periodly. It doesnt support live updates.

You have to take the key words, loop them and create queries to achieve this. You can use inject to make it easy. This might help.

Related

Adding Nested Resources to Search Results

I am creating a rails app where I have implemented the following search function.
application.html.erb
<div class="searchbar">
<%= form_tag(articles_path, :method => "get", id: "search-form") do %>
<%= text_field_tag :search, params[:search], placeholder: " Search", :class => "search_form" %>
<%= submit_tag "Search", :name => nil %>
<% end %>
</div>
article.rb
def self.search(search)
where("title LIKE ? OR creator LIKE ? OR description LIKE ?", "%#{search}%", "%#{search}%", "%#{search}%")
end
articles_controller.rb
def index
#articles = Article.all
if params[:search]
#articles = Article.search(params[:search]).order("created_at DESC")
else
#articles = Article.all.order("created_at DESC")
end
end
This allows me to search for all primary resources but does not include nested resources in the search results. Is there a way to include these resources within the same function?
You'd need to do some joins, and define a syntax for passing the relevant join info into your search method.
This can get complicated pretty quick, and I'd highly suggest you don't reinvent the wheel and use an existing solution such as ransack. This will let you do things like
Article.ransack(title_cont: "code", author_name_cont: "bob").result
where, in this example, Author is its own model, associated with Article, and containing the field name.
It also plays very nice with views and forms, so you can very easily implement search forms without having the manually key everything up to the right association and field.
(Personally I'm not in love with their concatenation syntax but it gets the job done.)

How to call method via hyperlink?

How can I call a method with a hyperlink on my index.html.erb?
I currently have a search field that allows the user to type in a keyword. This will search attributes in a model and display any that are found.
For example, I have records_controller.rb with this in it:
def index
#records = Record.search(params[:search])
end
app/models/record.rb has:
# Added for the search
def self.search(search)
where("title LIKE ? OR keyword LIKE ? OR description LIKE ?", "%#{search}%", "%#{search}%", "%#{search}%")
end
'title, 'keyword', and 'decscription' are attributes in the model.
app/views/records/index.html.erb contains a search form:
<%= form_tag(records_path, :method => "get", id: "search-form") do %>
<%= text_field_tag :search, params[:search], placeholder: " Search" %>
<%= submit_tag "Find" %>
<% end %>
On this same index.html.erb page, how can I add a hyperlink that displays all data from a model that contains a title I specify?
Such as displaying all rows that have the title "truck".
If the user clicks the hyperlink, it will display data
where('title LIKE "truck"', "%#{search}%")
I'm assuming I'll also need to put a new method in the record model such as:
# I'll have to play with this because I know it is wrong
# Added for the search
def self.searchtruck(search)
where('title LIKE "truck"', "%#{search}%")
end
This does what you're asking, creates a link with the param[:search] = 'truck'
<%= link_to 'Search for truck', records_path(search: 'truck') %>

Ruby on Rails - Search on Model Index

I want to be able to search and update the index.
this is my controller method:
def index
if params[:search]
#ofertas = Oferta.search(params[:search]).paginate(page: params[:ofertas_page], :per_page => 5)
else
#ofertas = Oferta.all.paginate(page: params[:ofertas_page], :per_page => 5)
end
end
My search method in the model
def self.search(search)
where("titulo like ?","%w{search}%")
end
and this is the search form
<%= form_tag ofertas_path, :method => 'get' do %>
<p>
<%= text_field_tag :search, params[:search], placeholder: "Procurar Entidades" %>
<%= submit_tag "Procurar", :name => nil %>
</p>
<% end %>
I've seen this setup in a number of search tutorials but no matter what I type nothing appears. Does someone know what I'm doing wrong?
It looks like you were trying to interpolate the search variable into the string, but didn't quite get the right symbol. How about this:
"%#{search}%"
Note the # instead of the w.
where("titulo like ?","%w{search}%")
should be:
where("titulo like ?", "%#{search}%")
#{xxx} is for string interpolation - it allows you to inject ruby (including variables) into a string.
"%xxxx%" is telling SQL that the search string can appear anywhere in the titulo column. '%' is a wildcard in SQL.
%w{xxx yyy zzz} is shorthand for ["xxx", "yyy", "zzz"] - an array in Ruby, which wouldn't mean much to the SQL as a string by itself.

rails 3.1 select_tag usage

Ive got a select_tag field at the top of a page and trying to get the selected option to change the content on the page based on the users selection.
Im a learner and have found pieces of information around but without detailed examples and good explanations on how to best approach and implement.
The scenario is as follows:
I have a belongs_to association between a project and documents and in one of my views which lists documents, I want to only show all the documents that belong to the currently selected project in the select tag.
Passing the selected project's id to the documents index action which only shows documents for a specified project id via a link_to tag came to mind. This would thus refresh the page with the correct documents in the view but I believe that is not the correct way to do it and that I cant use link_to tags as options in a select_tag. Can anyone help and offer an example?
I would suggest using the form.select method and options_for_select as in
f.select :attribute, options_for_select(#array, default_value)
and in your controller you should create or update using the submitted parameter
n = record.new(:attribute => params[:attribute])
have fun
In your controller:
def index
if params[:project]
#documents = Document.where(:project => params[:project]
else
#projects = Project.all
end
end
In your form/view:
<%= form_tag 'projects', :method => :get do %>
<%= options_from_collection_for_select(#projects, :id, :name)
<%= submit_tag %>
<% end %>
<% if #documents %>
<%= #documents.each do |d| %>
....
<% end >
<% end %>

Build static dropdown menu for simple search Rails 3

I have a simple search working in my rails app, but it only searches a single column of my table. I'm trying to add a simple dropdown menu with options like "last_name" and "city" so the user can select the column to search.
In my view I have:
<%= form_tag teachers_path, :method => 'get', :id => "teachers_search" do %>
<%= hidden_field_tag :direction, params[:direction]%>
<%= hidden_field_tag :sort, params[:sort]%>
<p>
<%= text_field_tag :search, params[:search], placeholder: 'First Name' %>
<%= submit_tag "Search", :first_name => nil %>
</p>
<% end %>
and in my model:
def self.search(search)
if search
where('first_name LIKE ?', "%#{search}%")
else
scoped
end
end
Any help greatly appreciated.
You can add a select_tag for your drop down menu
<%= select_tag "search_from", "<option>first_name</option><option>last_name</option><option>city_name</option>".html_safe%>
In your controller you can pass the value in params[:search_from] to your search method. and modify it to include the column name
def self.search(search, column_name)
if search
where('? LIKE ?', column_name, "%#{search}%")
else
scoped
end
end
I've written it in a crude way but i hope it gets the message along.
extending #sohaibs's answer dropdown is a good idea if you are only allowing user to filter result with some some fixed attributes
views
<%= select_tag "search_by", options_for_select(['first_name','last_name','city'].map{|o| [o.humanize,o] }) %>
<%= f.text_field 'search' %>
controller
def search
User.search params[:teacher][:search_by],params[:teacher][:search]
end
and model
def self.search(search_by,search_value)
where('? LIKE ?', search_by, search_value)
end
Awesome Rails :)
Have you tried:
def self.search(column, search)
# some logic
where('? LIKE ?', column, "%#{search}%")
# some logic
end

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