add timezone parameter and documentation

app/controllers/application_controller.rb

@@ -5,7 +5,7 @@ class ApplicationController < ActionController::Base
   # include these helper methods for views
   helper_method :current_user_session, :current_user, :logged_in?, :get_header_value, :to_bytes
   protect_from_forgery
-  before_filter :allow_cross_domain_access, :set_variables
+  before_filter :allow_cross_domain_access, :set_variables, :set_time_zone
   before_filter :configure_permitted_parameters, if: :devise_controller?
   after_filter :remove_headers
   before_filter :authenticate_user_from_token!
@@ -37,9 +37,6 @@ class ApplicationController < ActionController::Base
     @locale ||= get_locale
     I18n.locale = @locale
 
-    # sets timezone for current user, all DateTime outputs will be automatically formatted
-    Time.zone = current_user.present? ? current_user.time_zone : 'UTC'
-
     # allows use of daily params
     params[:timescale] = '1440' if params[:timescale] == 'daily'
     params[:average] = '1440' if params[:average] == 'daily'
@@ -304,16 +301,13 @@ class ApplicationController < ActionController::Base
       return date_range
     end
 
-    def set_time_zone(params)
     # set timezone correctly
-      if params[:offset]
-        # check for 0 offset first since it's the most common
-        if params[:offset] == '0'
-          Time.zone = 'UTC'
-        else
+    def set_time_zone
+      if params[:timezone].present?
+        Time.zone = ActiveSupport::TimeZone::MAPPING.key(params[:timezone])
+      elsif params[:offset].present?
         Time.zone = set_timezone_from_offset(params[:offset])
-        end
-      elsif current_user
+      elsif current_user.present?
         Time.zone = current_user.time_zone
       else
         Time.zone = 'UTC'
@@ -329,11 +323,12 @@ class ApplicationController < ActionController::Base
       # loop through each timezone
       ActiveSupport::TimeZone.zones_map.each do |z|
         current_zone = z[0]
-        # get time string in time zone without daylight savings time
-        timestring = Time.parse('2000-01-01').in_time_zone(current_zone).to_s
+
+        # get time string in time zone
+        timestring = Time.now.in_time_zone(current_zone).to_s
 
         # if time zone matches the offset, leave current_zone alone
-        break if (timestring.slice(-5..-3).to_i == offset && timestring.slice(-2..-1).to_i == 0)
+        break if (current_zone != 'UTC' && timestring.slice(-5..-3).to_i == offset && timestring.slice(-2..-1).to_i == 0)
       end
 
       # if no time zone found, set to utc

app/controllers/channels_controller.rb

@@ -169,14 +169,12 @@ class ChannelsController < ApplicationController
 
 
   def update
-
     @channel = current_user.channels.find(params[:id])
-    puts params[:channel].inspect
-    # make sure channel isn't social
-    #render :text => '' and return if @channel.social
+
     if params["channel"]["video_type"].blank? && !params["channel"]["video_id"].blank?
       @channel.errors.add(:base, t(:channel_video_type_blank))
     end
+
     if @channel.errors.count <= 0
       @channel.save_tags(params[:tags][:name])
       @channel.assign_attributes(channel_params)
@@ -458,9 +456,6 @@ class ChannelsController < ApplicationController
       end
     end
 
-    # set the user's time zone back
-    set_time_zone(params)
-
     # redirect
     flash[:notice] = t(:upload_successful)
     redirect_to channel_path(channel.id, :anchor => "dataimport")

app/controllers/docs_controller.rb

@@ -1,7 +1,26 @@
 class DocsController < ApplicationController
   before_filter :set_support_menu
 
-  def index; ;  end
+  def index
+    @timezones = {}
+
+    # for each timezone
+    ActiveSupport::TimeZone::MAPPING.each do |timezone|
+      # if the hash already exists, just add to the description
+      if @timezones[timezone[1]].present?
+        @timezones[timezone[1]][:description] = @timezones[timezone[1]][:description] + ", #{timezone[0]}"
+      # else add the timezone data
+      else
+        @timezones[timezone[1]] = {
+          :description => timezone[0],
+          :offset => Time.now.in_time_zone(timezone[0]).formatted_offset
+        }
+      end
+    end
+
+    @timezones = @timezones.sort_by{ |identifier, hash| hash[:offset].to_i }.to_h
+  end
+
   def errors; ; end
   def tweetcontrol; ; end
   def plugins; ; end

app/controllers/feed_controller.rb

@@ -15,9 +15,6 @@ class FeedController < ApplicationController
     # set csv headers if necessary
     @csv_headers = feed_factory.feed_select_options if params[:format] == 'csv'
 
-    # set timezone correctly
-    set_time_zone(params)
-
     # check for access
     if @success
 
@@ -93,7 +90,6 @@ class FeedController < ApplicationController
   def last_group_call(arg)
     @channel = Channel.find(params[:channel_id])
     @api_key = ApiKey.find_by_api_key(get_apikey)
-    set_time_zone(params)
 
     # limit for the number of results to get
     limit = 30
@@ -153,14 +149,10 @@ class FeedController < ApplicationController
   end
 
   def show
-
     @channel = Channel.find(params[:channel_id])
     @api_key = ApiKey.find_by_api_key(get_apikey)
     output = '-1'
 
-    # set timezone correctly
-    set_time_zone(params)
-
     # make sure field parameter is set correctly, changes "field1" to "1"
     params[:field_id] = params[:field_id].sub('field', '') if params[:field_id].present?
 

app/controllers/plugins_controller.rb

@@ -5,7 +5,7 @@ class PluginsController < ApplicationController
 
   def check_permission
     @plugin = Plugin.find(params[:id])
-    if @plugin.user_id != current_user.id
+    if current_user.present? && @plugin.user_id != current_user.id
       render :text=> "#{t(:permission)} #{t(:plugin)}", :layout => true and return
       return true
     end

app/controllers/stream_controller.rb

@@ -6,9 +6,6 @@ class StreamController < ApplicationController
     channel = Channel.find(params[:id])
     api_key = ApiKey.find_by_api_key(get_apikey)
 
-    # set timezone correctly
-    set_time_zone(params)
-
     # output proper http response if error
     render :text => '-1', :status => 400 and return if !channel_permission?(channel, api_key)
 

app/views/docs/_sidebar.html.erb

@@ -1,6 +1,14 @@
 <ul class="nav nav-stacked" id="bootstrap-sidebar">
 
-  <li class="<%= 'active' if params[:action] == 'index' %>"><a href="/docs">Getting Started</a></li>
+  <% if params[:action] == 'index' %>
+    <li><a href="#start">Getting Started</a></li>
+    <li class="subitem"><a href="#support">Support</a></li>
+    <li class="subitem"><a href="#opensource">Open Source</a></li>
+    <li class="subitem"><a href="#headers">HTTP Headers</a></li>
+    <li class="subitem"><a href="#timezones">Time Zones</a></li>
+  <% else %>
+    <li><a href="/docs">Getting Started</a></li>
+  <% end %>
 
   <% if params[:action] == 'channels' %>
     <li><a href="#channels">Channels</a></li>

app/views/docs/channels/_feed.html.erb

@@ -15,7 +15,8 @@ Valid parameters:
   <li><b>days</b> (integer) Number of 24-hour periods before now to include in feed (optional)</li>
   <li><b>start</b> (datetime) Start date in format YYYY-MM-DD%20HH:NN:SS (optional)</li>
   <li><b>end</b> (datetime) End date in format YYYY-MM-DD%20HH:NN:SS (optional)</li>
-  <li><b>offset</b> (integer)  Offset of your timezone without daylight savings time (optional)</li>
+  <li><b>timezone</b> (string) <a href="/docs#timezones">Timezone identifier</a> for this request (optional)</li>
+  <li><b>offset</b> (integer) Timezone offset that results should be displayed in. Please use the <a href="/docs#timezones">timezone</a> parameter for greater accuracy. (optional)</li>
   <li><b>status</b> (true/false) Include status updates in feed by setting "status=true" (optional)</li>
   <li><b>location</b> (true/false) Include latitude, longitude, and elevation in feed by setting "location=true" (optional)</li>
   <li><b>min</b> (decimal) Minimum value to include in response (optional)</li>
@@ -176,7 +177,8 @@ replacing <span class="customcode">CHANNEL_ID</span> with the ID of your Channel
 Valid parameters:
 <ul>
   <li><b>key</b> (string) Read API Key for this specific Channel (optional--no key required for public channels)</li>
-  <li><b>offset</b> (integer)  Offset of your timezone without daylight savings time (optional)</li>
+  <li><b>timezone</b> (string) <a href="/docs#timezones">Timezone identifier</a> for this request (optional)</li>
+  <li><b>offset</b> (integer) Timezone offset that results should be displayed in. Please use the <a href="/docs#timezones">timezone</a> parameter for greater accuracy. (optional)</li>
   <li><b>status</b> (true/false) Include status updates in feed by setting "status=true" (optional)</li>
   <li><b>location</b> (true/false) Include latitude, longitude, and elevation in feed by setting "location=true" (optional)</li>
   <li><b>callback</b> (string) Function name to be used for JSONP cross-domain requests (optional)</li>
@@ -248,7 +250,8 @@ replacing <span class="customcode">CHANNEL_ID</span> with the ID of your Channel
 Valid parameters:
 <ul>
   <li><b>key</b> (string) Read API Key for this specific Channel (optional--no key required for public channels)</li>
-  <li><b>offset</b> (integer)  Offset of your timezone without daylight savings time (optional)</li>
+  <li><b>timezone</b> (string) <a href="/docs#timezones">Timezone identifier</a> for this request (optional)</li>
+  <li><b>offset</b> (integer) Timezone offset that results should be displayed in. Please use the <a href="/docs#timezones">timezone</a> parameter for greater accuracy. (optional)</li>
   <li><b>status</b> (true/false) Include status updates in feed by setting "status=true" (optional)</li>
   <li><b>location</b> (true/false) Include latitude, longitude, and elevation in feed by setting "location=true" (optional)</li>
   <li><b>callback</b> (string) Function name to be used for JSONP cross-domain requests (optional)</li>

app/views/docs/channels/_field.html.erb

@@ -15,7 +15,8 @@ Valid parameters:
   <li><b>days</b> (integer) Number of 24-hour periods before now to include in feed (optional)</li>
   <li><b>start</b> (datetime) Start date in format YYYY-MM-DD%20HH:NN:SS (optional)</li>
   <li><b>end</b> (datetime) End date in format YYYY-MM-DD%20HH:NN:SS (optional)</li>
-  <li><b>offset</b> (integer)  Offset of your timezone without daylight savings time (optional)</li>
+  <li><b>timezone</b> (string) <a href="/docs#timezones">Timezone identifier</a> for this request (optional)</li>
+  <li><b>offset</b> (integer) Timezone offset that results should be displayed in. Please use the <a href="/docs#timezones">timezone</a> parameter for greater accuracy. (optional)</li>
   <li><b>status</b> (true/false) Include status updates in feed by setting "status=true" (optional)</li>
   <li><b>location</b> (true/false) Include latitude, longitude, and elevation in feed by setting "location=true" (optional)</li>
   <li><b>min</b> (decimal) Minimum value to include in response (optional)</li>
@@ -160,7 +161,8 @@ replacing <span class="customcode">CHANNEL_ID</span> with the ID of your Channel
 Valid parameters:
 <ul class="format-block">
   <li><b>key</b> (string) Read API Key for this specific Channel (optional--no key required for public channels)</li>
-  <li><b>offset</b> (integer)  Offset of your timezone without daylight savings time (optional)</li>
+  <li><b>timezone</b> (string) <a href="/docs#timezones">Timezone identifier</a> for this request (optional)</li>
+  <li><b>offset</b> (integer) Timezone offset that results should be displayed in. Please use the <a href="/docs#timezones">timezone</a> parameter for greater accuracy. (optional)</li>
   <li><b>status</b> (true/false) Include status updates in feed by setting "status=true" (optional)</li>
   <li><b>location</b> (true/false) Include latitude, longitude, and elevation in feed by setting "location=true" (optional)</li>
   <li><b>callback</b> (string) Function name to be used for JSONP cross-domain requests (optional)</li>

app/views/docs/channels/_status.html.erb

@@ -11,7 +11,8 @@ replacing <span class="customcode">CHANNEL_ID</span> with the ID of your Channel
 Valid parameters:
 <ul>
   <li><b>key</b> (string) Read API Key for this specific Channel (optional--no key required for public channels)</li>
-  <li><b>offset</b> (integer)  Offset of your timezone without daylight savings time (optional)</li>
+  <li><b>timezone</b> (string) <a href="/docs#timezones">Timezone identifier</a> for this request (optional)</li>
+  <li><b>offset</b> (integer) Timezone offset that results should be displayed in. Please use the <a href="/docs#timezones">timezone</a> parameter for greater accuracy. (optional)</li>
   <li><b>callback</b> (string) Function name to be used for JSONP cross-domain requests (optional)</li>
 </ul>
 

app/views/docs/charts.html.erb

@@ -45,7 +45,8 @@
       <li><b>days</b> (integer) Number of 24-hour periods before now to include in feed (optional)</li>
       <li><b>start</b> (datetime) Start date in format YYYY-MM-DD%20HH:NN:SS (optional)</li>
       <li><b>end</b> (datetime) End date in format YYYY-MM-DD%20HH:NN:SS (optional)</li>
-      <li><b>offset</b> (integer)  Offset of your timezone without daylight savings time (optional)</li>
+      <li><b>timezone</b> (string) <a href="/docs#timezones">Timezone identifier</a> for this request (optional)</li>
+      <li><b>offset</b> (integer) Timezone offset that results should be displayed in. Please use the <a href="/docs#timezones">timezone</a> parameter for greater accuracy. (optional)</li>
       <li><b>status</b> (true/false) Include status updates in feed by setting "status=true" (optional)</li>
       <li><b>location</b> (true/false) Include latitude, longitude, and elevation in feed by setting "location=true" (optional)</li>
       <li><b>min</b> (decimal) Minimum value to include in response (optional)</li>

app/views/docs/index.html.erb

@@ -6,7 +6,7 @@
 
   <div class="col-sm-7 col-xs-12">
 
-    <h1>Getting Started</h1>
+    <h1 id="start">Getting Started</h1>
 
     <ul>
       <li>Sign Up for a New User Account -&nbsp;<a title="Create New ThingSpeak User Account" href="https://thingspeak.com/account/new">https://thingspeak.com/account/new</a></li>
@@ -15,11 +15,11 @@
     </ul>
 
     <br>
-    <h4>Support</h4>
+    <h4 id="support">Support</h4>
     <p>Please post your questions, comments, and feature requests in the <a title="ThingSpeak Forum" href="http://community.thingspeak.com/forum/">ThingSpeak Forum</a>.</p>
 
     <br><br>
-    <h4>Open Source</h4>
+    <h4 id="opensource">Open Source</h4>
 
     <p>The ThingSpeak API is&nbsp;available&nbsp;on <a title="ThingSpeak Open Source Web of Things API on GitHub" href="https://github.com/iobridge/thingspeak" target="_blank">GitHub</a> and includes the complete ThingSpeak API for processing HTTP requests, storing numeric and&nbsp;alphanumeric&nbsp;data, numeric data processing, location tracking, and status updates. &nbsp;The open source version follows the same documentation as the ThingSpeak hosted service.</p>
 
@@ -29,9 +29,37 @@
     </ul>
 
     <br><br>
-    <h4>HTTP Headers</h4>
+    <h4 id="headers">HTTP Headers</h4>
     If you would like to reduce the number of HTTP headers sent by our application, please add the parameter "headers=false" to any HTTP request.
 
+    <br><br><br><br>
+    <h4 id="timezones">Time Zones Reference</h4>
+    Time zones can be specified for any request by adding the <i>timezone</i> parameter with a value corresponding to any identifier found below.
+    Identifier names are case-sensitive, and should be URL-encoded in HTTP GET requests, for example:
+    <br><br>
+<pre>GET <span class="str"><%= @ssl_api_domain %>channels/9/fields/1/last.json?timezone=<span class="customcode">America%2FNew_York</span></span></pre>
+    <br>
+    <table class="table table-striped table-bordered table-condensed">
+      <tr>
+        <th>Identifier</th>
+        <th>Description</th>
+        <th>Current Offset</th>
+      </tr>
+      <% @timezones.each do |identifier, hash| %>
+        <tr>
+          <td><%= identifier %></td>
+          <td><%= raw(hash[:description]) %></td>
+          <td>UTC <%= hash[:offset] %></td>
+        </tr>
+      <% end %>
+    </table>
+
+    <div class="alert alert-warning">
+      <b>Note:</b>
+      <br>
+      If both the <i>offset</i> and <i>timezone</i> parameters are present, <i>offset</i> will be ignored in favor of the more accurate <i>timezone</i> parameter.
+    </div>
+
     <br><br><br><br><br><br><br><br><br><br><br><br>
 
   </div>