i just don't get it, where did i do wrong.
please highlight them for me.
Im testing a graph using gruff.
in ReportController
def mygruff
#gr = Hash.new
#gr["jan"] = 3
#gr["feb"] = 6
logger.info({##gr.keys})
end
in my log, i did get 'janfeb'
in mygruff view
<%if #gr.blank?%>
<%=No gruff%>
<%else%>
<%=#gr.keys%>
<%end%>
I will get No gruff on mygruff page.
But i get it in my log.
Ive tried
object.empty?
true
object.blank?
true
object.nil?
false
how to get the hash in my view?
please show me the way.thank you.
def stat2
#cus_t = Hash.new
a = Gruff::Bar.new('500x350')
a.theme = {
:colors => ['#138F6A','#330000','#0aaafd','#FF0000','#00CD00','#ff6602', '#3bb003', '#1e90af', '#efba30', '#0aaaac'],
:marker_color => '#aaa',
:background_colors => ['#eaeaea', '#fff']
}
a.hide_title = true
#customer = Customer.find(:all)
#customer.each do |custs|
#g_cus = Casedf.count(:all, :conditions=> "customer_id=" + custs.id.to_s)
a.data(custs.companyname, #g_cus)
##cus_t[custs.companyname] = #g_cus
#cus_t.store(custs.companyname,#g_cus)
end
a.write("#{RAILS_ROOT}/public/images/customer.png")
$logger.info("hash keys #{#cus_t.keys}")
end # end def
Here is what I did on my view:
<table>
<% if #cus_t.nil?%>
<tr>
<td colspan="6">No cus added so far<%=#cus_t.keys%>l</td>
</tr>
<%else%>
<tr>
<td><%=#cus_t.keys%></td>
</tr>
<%end%>
</table>
So when I browse to stat2's page, I get nothing, but in my logs, the keys are printed out. I'm stumped, please help.
Hi Do you have in your action
def mygruff
#gr = Hash.new
#gr["jan"] = 3
#gr["feb"] = 6
logger.info({##gr.keys})
end
it was not clear for me from comment
In Ruby, hashes don't have a blank? method. That method is added by Rails and there may be a bug with it. Please try this in your view:
<% if #gr.empty? %>
No gruff
<% end %>
<%= #gr.inspect %> <!-- print regardless to see if there is data there -->
Related
I'm putting together a combo box or called the same as a select in rails, I put everything together but it gives me an error that tells me that I have a problem with the map inside the select, I'm using simple_form_for and I'm doing a map inside the collection inside the selector or called in simple_for associatio.
I copy the view and the controller
This view
<h1>HistContact#index</h1>
<p>Find me in app/views/hist_contact/index.html.erb</p>
<%= simple_form_for #histcontact, url:hist_contact_index_path do |f| %>
<% f.association :contact, collection: #contacts.map{|cont| [cont.name , cont.id]}%>
<%f.submit "buscar"%>
<% end %>
<table id = "client_table" class="table table-striped table-sm">
<thead>
<tr>
<th>Id</th>
<th>fecha</th
</tr>
</thead>
<tbody>
<% #histcontacts.each do |c|%>
<tr>
<td> <%= c.id %> </td>
<td> <%= c.created_at %></td>
</tr>
<% end %>
</tbody>
</table>
the controller
class HistContactController < ApplicationController
before_action :authenticate_user!
def index
#histcontacts = HistContact.all
#contacts = Contact.all
end
def new
#histcontact = HistContact.new
#contacts = Contact.new
end
def create
#histcontact = HistContact.find(contact_id: params[:contact])
end
private
def contactID(current_user)
client_id = Client.where(user_id: current_user.id)
contact_id = Contact.where(client_id: client_id.ids[0])
return contact_id
end
end
Thank you
According to error, you are trying to map a single object instead of an array of objects. Based on your controller code, the view file you shared is probably new.html.erb. To solve this problem you need do it like this:
def new
#histcontact = HistContact.new
#contacts = Contact.all
end
I have a task in my Rails app that can update a gallery album. This is passed an id that corresponds with an album on my Flickr account, it deletes all the photos attached to the album locally in the app and pulls them afresh from Flickr and updates the album name and title if required. This is required because I am currently working my way through all my photos re-tagging them all and this task will help pull those tags from Flickr to my site for searching and linking purposes.
I built an admin page that lists all my albums and each has an "Update Album" button. That looks like:
gallery.html.erb
<table class="striped">
<tr>
<th>Collections</th>
<th>Albums</th>
<th>Photo count</th>
<th>Flickr ID</th>
<th>Options</th>
</tr>
<% #collections.each do |c| %>
<tr>
<td><%= c.title %></td>
<td></td>
<td></td>
<td><%= c.flickr_id %></td>
<td></td>
</tr>
<% if c.has_albums? %>
<% c.albums.each do |a| %>
<tr class="<%= a.title.parameterize %>">
<td>↳</td>
<td>
<%= a.title %>
</td>
<td>
<%= a.photos.count %>
</td>
<td>
<%= a.flickr_id %>
</td>
<td class="this-one">
<%= link_to "Update",
admin_update_album_path(
album_flickr_id:a.flickr_id,
row: a.title.parameterize
),
"am-button": '',
method: :post,
remote: true
%>
</td>
</tr>
<% end %>
<% end %>
<% end %>
</table>
Because the task of updating took a while I thought putting it as a background job would be a good idea. Here's my controller and job:
gallery_controller.rb
class Admin::GalleryController < AdminController
def update_album
UpdateAlbumJob.perform_later(params[:album_flickr_id], params[:row])
end
end
update_album_job.rb
class UpdateAlbumJob < ApplicationJob
queue_as :default
after_perform do |job|
album = Album.find_by(flickr_id: job.arguments.first)
album.update_attribute(:updating, false)
puts job.arguments
ActionCable.server.broadcast 'album_updates_channel', content: 'Update complete', row: job.arguments[1], status: 'complete'
end
def perform(album_flickr_id, row)
require 'flickraw'
FlickRaw.api_key=ENV["FLICKR_API_KEY"]
FlickRaw.shared_secret=ENV["FLICKR_API_SECRET"]
flickr.access_token=ENV["FLICKR_OAUTH_TOKEN"]
flickr.access_secret=ENV["FLICKR_OAUTH_SECRET"]
# album_flickr_id = params[:album_flickr_id] or raise "No Album Flickr ID specified"
album = Album.find_by(flickr_id: album_flickr_id)
album.update_attribute(:updating, true)
ActionCable.server.broadcast 'album_updates_channel', content: 'Updating…', row: row, status: 'in-progress'
# Album.find_by(flickr_id: album_flickr_id).destroy if Album.find_by(flickr_id: album_flickr_id)
# Get tags
#flickr_tags_list = flickr.tags.getListUserRaw user_id: ENV["FLICKR_USER_ID"]
#tags_key = {}
#flickr_tags_list['tags'].each do |t|
#tags_key[t['clean'].to_sym] = t['raw'].first
end
# ========
# Work out parent collection
# This needs to cater for when there is NO parent collection
#collections = flickr.collections.getTree user_id: ENV["FLICKR_USER_ID"]
#parent_id = nil
def search_for_set_id_of_collection(set_id, collection, empty)
if collection["collection"]
collection.collection.each_with_index do |c|
search_for_set_id_of_collection(set_id, c, #parent_id)
end
end
if collection["set"]
collection["set"].each do |set|
if set["id"] == set_id
#parent_id = collection["id"]
end
end
end
end
#collections.each do |c|
search_for_set_id_of_collection(album_flickr_id, c, #parent_id)
end
# ========
Photo.where(album_id: album.id).destroy_all
Album.add_set_from_flickr(album_flickr_id, #parent_id, ENV["FLICKR_USER_ID"], #tags_key, true)
end
end
albumupdates.js:
const ActionCable = require('actioncable-modules');
const dotenv = require('dotenv')
dotenv.config()
const actionCable = ActionCable.createConsumer(process.env.WEBSOCKET_SERVER)
actionCable.subscriptions.create("AlbumUpdatesChannel", {
received: function(data) {
console.log('Hello from Action Cable');
if (data.status == 'in-progress') {
$('.' + data['row'] + ' td.this-one [am-Button]').hide();
$('.' + data['row'] + ' td.this-one').append(data['content']);
} else {
$('.' + data['row'] + ' td.this-one [am-Button]').show();
$('.' + data['row'] + ' td.this-one p').hide();
}
}
})
Basically, this is the first time i've just background jobs and action cable. I'm not 100% sure whether i've done this correctly but i wanted to give them a try and then ask on here for comments and suggestions. It sort of works ok but I have some questions:
Is this the best way of updating the table of albums with the status of the job? eg, "Updating..." and "Update complete!". I'd love to show an "Update Complete!" message but somehow remove that once it's been seen so just the button is showing again but unsure what path to go down to achieve that.
How would the live page updates work if i start an album updating, go away from the page and come back?
Also i'm unsure if my albumupdates.js file is set up correctly?
Just some comments and improvements to my code would be very helpful!
Thanks.
I am doing this for a school project and it is not working. :(
How do I get out the selected[petowner_id] from the view and make it usable in a ruby controller?
How do I make the #selected_pet = params([petowner_id]) in the controller that comes in from the view to function? Currently it renders an error message when I try to set it. :(
I am getting very tired of it not working.
The controller from Pets controller
class PetsController < ApplicationController
# GET /pets
# GET /pets.json
def monsters
#Finds the current user
if current_user
#user = current_user
#pets_kept = [] #why?
##petowner = Petowner.find(params[:petowner][:id])
#if(params[:commit])
#end
#monster = "Eeeep"
#mypets=[]
#all_my_pets = #user.petowners
#options value = 2
#params { selected_petowner[petowner_id]}
#selectpet = params{[selected][petowner_id]}
#petowner = Petowner.find_by_id(params[:id])
#pet = Pet.find_by_id(params[:pet_id])
#Find the petowners that the user currently has
##mypets = #user.petowners
#This is my way of doing things in a C++ fashion, I don't get all ruby things
#user.petowners.each do |pet|
##selected_pet = pet.find(params[:selected])
# if pet.hp != 0
# #pets_kept << pet #Dont recall seeing the << before in ruby but for C++ statement used for cout statements
#if pet.select
# #selected_pet = pet.select
#end
end
##selected_pet = Petowner.find(params[:petowner][:selected])
#end
#selected_pet = 1 ##user.petowners.find(params[:id])
#mypets = current_user.petowners.select{|pet| pet.hp !=0}
#raise "I am here"
##selected_pet = #mypets.find(params[:id][:selected])
##mypets = #pets_kept
end
The code from the view that doesn't go back to the controller variable and set it. :(
<select id="petowner_id" name="selected[petowner_id]">
<%= #all_my_pets.each do |pet| %>
<option value="<%= pet.id %>"><%= pet.pet_name %></option>
<% end %>
</select>
Previous step from pets/monsters view that doesn't work at all from previous collection. :(
<%= form_for :petowner, :url => petowner_fights_path(#selected_pet, #pet) do |f| %>
<p>Select a pet <%#= f.collection_select(:petowner, :petowner_id, #user.petowners, :petowner_id, :pet_name) %></p>
<%= render 'monsterinfo' %>
<div class="outer"></div>
<%= f.submit "Fight Selected Monster" %>
<% end %>
You probably want params[:petowner][:petowner_id]. Definitely don't construct the select with html in a view.
By the way, it's really helpful to see all of the params passed in to a controller action. I tend to raise params.to_yaml when I need to do that.
could anyone tell me why does my rails application returns this piece of code when I do a select statement?
#<Driver:0x22ef3f0>
The select statement is:
current_schedule_record = {
'driver_name' => Driver.where(['id = ?', id]).select('first_name').first
}
and the view is:
<% #trucks.each do |truck| %>
<% record = ScheduleController.schedule_record(truck.id) %>
<tr>
<td><%= truck.id %></td>
<td><%= record['driver_name'] %></td>
</tr>
<% end %>
From the documentation
Be careful because this also means you're initializing a model object with only the fields that you've selected.
So using select still creates a model object. You need to use something like
current_schedule_record = {
'driver_name' => Driver.where(['id = ?', id]).select('first_name').first.first_name
}
Here's my controller
class ActivitiesController < ApplicationController
def exercises
if current_user.userprofile.present? #chef whether there is a userprofile object
#weeknum = current_user.userprofile.week
#dayly_activity = Activity.where(:week => 1, :day => 'Monday').first
end #end check userprofile
end
def updatexercises
respond_to do | format |
#dayly_activity = Activity.where(:week => 1, :day => 'Monday').first
#dayly_activity.update_attributes(params[:#dayly_activity])
#dayly_activity.save
format.html { render action: "exercises" }
end
end
end
And my template
<h1>WEEKLY EXERCICES</h1>
Day : <%= #dayly_activity.day %>
<%= form_for(#dayly_activity, :url => { :action => "updatexercises" }) do | f | %>
<table>
<tr>
<td>Jogging:</td>
<td>
<% list = (0..20).to_a %>
<%= f.select :jog, list %>
x 0.1 km
</td>
</tr>
<tr>
<td>Bicycling:</td>
<td>
<% list = (0..10).to_a %>
<%= f.select :bicycl, list %>
km
</td>
</tr>
<tr>
<td>Push ups:</td>
<td>
<% list = (0..20).to_a %>
<%= f.select :pushups, list %>
x 10 times
</td>
</tr>
<tr>
<td colspan = "2"><%= f.submit %></td>
</tr>
</table>
<% end %>
When I click the button, the Daily+activity object is not being saved. Am I missing some thing
EDIT
I've tried to hard code this way and it saving to the database.
#dayly_activity.jog = 17
#dayly_activity.pushups = 13
#dayly_activity.save
Obviously, the problem must be with the update_attributes
You need to use params[:dayly_activity] (drop the # sign).
Also, I would put these two lines :
#dayly_activity = Activity.where(:week => 1, :day => 'Monday').first
#dayly_activity.update_attributes(params[:dayly_activity])
Outside of your respond_to block (put them on top of it).
You can also drop the #dayly_activity.save, update_attributes do it automatically and will returns true/false if it works/fails.
You have error in [:#dayly_activity]
And in that code
#dayly_activity.update_attributes(params[:#dayly_activity])
#dayly_activity.save
save is useless. update_attributes saving the record.
It better to check result of update_attributes. So you can catch validation errors.
For example
if #dayly_activity.update_attributes(params[:dayly_activity])
redirect_to dayli_activity_path, :notice => "Updated"
else
render :edit
end