ruby - How to avoid bug if geocoder sends me empty array when retrieving country of user (Rails 4/geocoder) -

-

I am preparing a daily deal rail app

I only display the user's deals I am thanking the country with the GeoCoder Gems.

I wonder what will happen if the Geocoder fails to recover the country and sends an empty array, as I think it fails to send the IP (see) < / P> 

  Class StaticPagesController & lt; ApplicationController def home @deals = deal_in_user_country.featured_on_hp response_to do format | Create an opportunity to filter out deals that meet the format.html # home.html.erb end and # user country def deal_in_user_country Deal.where (country: set_location_by_ip_lookup.country || 'United States') # If Geodor To pb if default = US version end and end

As you see, I tried to use And puts the 'United States', but I do not think it will work. I think if Geocoder sends blank array, set_location_by_ip_lookup = [] and then set_location_by_ip_lookup.country will generate an error, am I right?

How should I avoid the bug when I send an empty array of geo-word?

If it helps, for information, here's how I set the country in worries / CountrySureter 

  Extend the module CountrySester ActiveSupport :: Filter before_filter: set_location_by_ip_lookup end def Set_location_by_ip_lookup If Rails.env.development? Or Rails.env.test? Geocoder.search (request.remote_ip). First and #in production requests. Location End End End

Your code should be fine, if the geocoder is at least one Returns empty array (except I will not name this mehtod set_ because it is not set to anything)

Irb 

  {a : [: D]. First || : B} => {: A = & gt;: d} {a: [] First || : B} => {: A = & gt ;: b}

However, I will put it in Panathathy to make it clear 

  Deal. Where (country: (set_location_by_ip_lookup country || 'United States'))

Gecodoer.search should not be thrown exception, otherwise it would be Geocoder.search ! / Code> According to an unwritten Ruby conference, I will double check it through the plugin from the Internet connection and see what happens


Comments

Post a Comment

Popular posts from this blog

java - org.apache.http.ProtocolException: Target host is not specified -

-
I have written a simple httprequest / response code and I am getting this error below: I used to type in my classpath httpclient, httpcore, common -Codecs and general logging. I am very new to Java and I do not know what's going on here. Please help me. code: import org.apache.http.client.HttpClient; Import org.apache.http.client.methods.HttpGet; Import org.apache.http.HttpResponse; Import org.apache.http.impl.client.HttpClientBuilder; Import org.apache.http.Header; Import org.apache.http.HttpHeaders; Public class UnshorteningUrl {public static zero main (string [] args throws exception {HttpGet request = zero; HTTP Client Client = HTTP ClientBuilder.credit (). Build (); Try {Request = New HTTP Gate ("trib.me/1lBFzSi"); HttpResponse httpResponse = client.execute (request); Header [] header = httpResponse.getHeaders (HttpHeaders.LOCATION); // Preconditions.checkState (headers.length == 1); String new url = header [0] .getValue (); System.out.println ("new url...
Read more

java - Gradle dependencies: compile project by relative path -

-
Is it possible to specify a dependency on another gradeal project in the granular (in android studios) outside the current project limits? For example, with a relative path like this: dependence {collection project ('../../ stdlib / dagger'}} MyApp (path / user / foo / workspace / mypad) The app (Path / User / Foo / Workspace / MyPass / App) And I have an Android Library Project with 3 subdomules: stdlib (path is / user / foo / Utilities (Path / User / Foo / Workspace / Stadlib / Utilis) http (Path / User / Foo / Workspace / Stadlib / HT) / Li> What I have to do is compile the Dagger, Util, http module in the MyApp project. The Stidelib Library module under heavy development And MyApp will grow in the form of Growth, so I do not want to push them into a Mewen repository. I am a little change. is likely to add another Gredle projects in some way? I will push the study library into the Maven repository after the source is in search of a temp...
Read more

ruby on rails - Object doesn't support #inspect when used with .include -

-
So I have participated in a glitch error that I do not even know how to debug. I am very new to the railing, so it has kicked my ass well when I use the .includes (school) seen by the student, it gives a blue box error, But when I look at any other model and .includes (school) , the school works just fine. class student & lt; ActiveRecord :: Base has has_many: relationships, foreign_key: "liker_id", dependent :: has_many: matches, foreign_key: "student_1_id", dependent :: deleted belong_to: school belong_to: conference belong_to: would_you_rather belong_to: home city belong_to: year is_to: Major and class school & lt; on the console activatecord :: Affiliate for the base: conference includes: respondent, class: "school", foreign_key: "rival_id" (e.g. For: School) Select SQL generated Select "School". * "School" from "school" "ID" IN (1) error message back NoMethodError: u...
Read more