I am trying to have a store register with their address, which once registered will automatically create a landmark on google maps of the location. How should I go about doing this? I have been using Ruby on Rails for the majority on
Geokit is fairly easy to implement. If you are just beginning to use the Google mapping API, I would recommend starting here: https://github.com/jlecour/geokit-rails3.
Once you get it setup properly, you can do something like this in your controller...
#event = Event.find(params[:id])
if #event.is_geocoded?
#map = GMap.new("map_div", 'map')
#map.control_init(:large_map => true, :map_type => false)
#map.center_zoom_init(#event.latlon,12)
#map.overlay_init(GMarker.new(#event.latlon, :title => #event.name, :info_window => #event.address_for_map_popup))
end
In your view, something like this:
- if #map
- initialize_map
= #map.to_html.html_safe
= #map.div(:width => 478, :height => 400).html_safe
It is the GMarker that creates the map marker and overlay_init that overlays it on top of the map.
So the best way would probably be to store their location in a database (or translate to coordinates first then store in database). From there you can use something like google maps javascript api to drop pins onto a map you generate.
http://code.google.com/apis/maps/documentation/javascript/
Related
I'm trying to learn how to query a rails database and return the results as JSON. In my example, I want to query the data using the parameters, city and state.
So far, in my controller, I have gotten the following action to work.
def state
#bathrooms = Bathroom.where("state = ?" ,params[:state])
respond_to do |format|
format.json { render :json => #bathrooms }
format.js { render :nothing => true }
end
end
This is also my routing entry.
match '/bathrooms/state/:state',
:controller => "bathrooms",
:action => "state"
I can call this resource with the following URL:
http://localhost:3000/bathrooms/state/CA.json
That's all good but I don't know how to query by more than one parameter. Adding and AND clause in the controller seems to be easy enough.
BUT....I don't know how to
a.) Correctly write the routing entry?
b.) What would the URL look like if I tested it in a browser?
I've tried to understand rake routes but I must be missing something.
Could someone provide a basic example for what the action should look like? What the routing entry should look like and what does the URL to access the resource look like?
Again, if written in SQL, this is what I would like to be returned.
SELECT * from bathrooms WHERE city='Chicago' AND state = 'IL'
Any help appreciated.
You don't have to pass everything by the route - the URL also support GET parameters - those are the parameters you usually see after the question mark in the URL. You can add those GET parameters without changing your routes: http://localhost:3000/bathrooms/state/IL.json?city=Chicago. Then your can access the city parameter via params[:city]. but in your case, I think it will be better to use http://localhost:3000/bathrooms/index.json?state=IL&city=Chicago. You'll also need to change your routing to
match '/bathrooms/index',
:controller=>:bathrooms,
:action=>:index
and put the code in the index method of BathroomsController. You access the parameters the same - but the concept is different - you don't enter a state and look for bathrooms by city, you just look for bathrooms by state and city.
Anyways, you don't want to write the URL by hand - you want to a Rails helper or an HTML form generate it:
link_to "bathroom in Chicago, IL",:controller=>:bathrooms,:action=>:index,:state=>'IL',:city=>'Chicago'
If you want to use a form(to let the users choose their own state and city), you need to set it's method to GET:
form_tag {:controller=>:bathrooms,:action=>:index},:method=>:get do
and put state and city as fields.
It's also worth noting that while you can use SQL's AND to perform a search by multiple fields, you can also chain where methods: Bathroom.where(:state=>params[:state]).where(:city=>params[:city]).
You can put any arbitrary parameters in your querystring.
For example:
http://localhost:3000/bathrooms/state/CA.json?city=Chicago
your query looks like this:
#bathrooms = Bathroom.where("state = ? and city= ?" ,params[:state], params[:city])
In a Rails application, I have a particular form with many fields for editing a resource. Since I also want to log what was changed for this particular resource, I need to know which params changed.
Currently in this form, I have duplicated every field in the form with hidden field tags, so in the controller every field is compared to the corresponding hidden field to determine if the value was changed. But it's a LOT of work in the view and in the controller.
Being relatively new to Rails, I'm finding all kinds of Rails "magic" as I go along, so I wonder: does the framework provide a way to do this for me? Or is this pretty much the only way?
ActiveModel has exactly what you're looking for, take a look at the examples in the docs...
http://api.rubyonrails.org/classes/ActiveModel/Dirty.html
person = Person.find_by_name('Uncle Bob')
person.changed? # => false
person.name = 'Bob'
person.changed? # => true
person.name_changed? # => true
person.name_was # => 'Uncle Bob'
person.name_change # => ['Uncle Bob', 'Bob']
person.name = 'Bill'
person.name_change # => ['Uncle Bob', 'Bill']
You can try Dirty attributes for this task.
#post.attributes = params[:post]
#post.changed # or changes if you want to see what values on which was changed
More on that you can find by this link: http://ar.rubyonrails.org/classes/ActiveRecord/Dirty.html
Also if you want to use versioning or auditing, try this gems (best ones are: paper_trail, acts_as_audited, vestal_versions):
https://www.ruby-toolbox.com/categories/Active_Record_Versioning
https://www.ruby-toolbox.com/categories/Active_Record_User_Stamping
This mapping worked:
#fbc = FbComments.where("reviewee_id = ?", current_user.id)
#users = User.order("last_name")
#fb_comments = #fbc.map! { |fb| [fb, #users.find_by_id(fb.user_id)] }
So two arrays are mapped... one with comments and one with the user data of the person that made the comments. But I also need the user's profile picture data. Do i change the original mapping method to include a third array somehow (e.g. #fbc + #users + #pictures), or do i have to map another array on the result of mapping the first two (e.g. #fb_comments + #pictures)?
Profile pictures, like comments, have a user_id that is matched to the id of the user who made the comments.
Thanks.
I'm not sure why you're doing this the way you are. Why not use a join (.includes) to get everything in one query?
#fbc = FbComments.where("reviewee_id = ?", current_user.id).includes(:user => :picture)
#fbc.first.user # => The first user in the results
#fbc.first.user.picture # => The first user's picture
(I'm assuming here that profile picture data is its own model called Picture. Change it to fit your app if necessary.)
Take a look at the documentation and scroll down to "Eager loading of associations."
We are currently using the Magento API for importing a bunch of products into the store.
But we now run into a problem where some product attributes should be translated into a different language.
And I was wondering if it is possible to do this using the Magento API, because I can't seem to find anything related to that problem.
We currently have 2 store views, 1 for the Dutch version of the site and one for the French version of the site.
Our current import code looks something like this:
$store_id = $soapClient->call($soapSession, 'catalog_product.currentStore', array('nl'));
echo("store_id: $store_id");
$new_product_data = array(
'name' => 'NameInDutch',
'short_description' => 'DescriptionInDutch',
'price' => $price,
'weight' => $weight,
'websites' => array('base'),
'status' => '1'
);
$new_product_id = $soapClient->call($soapSession, 'catalog_product.create', array('simple', 4, $sku, $new_product_data)); // 4 => 'Default' attribute set
$localized_product_data = array(
'name' => 'NameInFrench',
'short_description' => 'DescriptionInFrench'
);
$store_id = $soapClient->call($soapSession, 'catalog_product.currentStore', array('fr'));
echo("store_id: $store_id");
$soapClient->call($soapSession, 'catalog_product.update', array($sku, $localized_product_data ));
Now, the output of the echo statements differs, the first time it's 1 and the second time it's 2, so that doesn't seem to be problem. But apparently it doesn't matter for the API if we set that value.
The result is that on the 'catalog_product.update' call, the name 'NameInFrench' overwrites the default name 'NameInDutch'.
So my question is if something like this is possible using the Magento API, and how one would accomplish this?
Ok, I found the answer, apparently I overlooked a certain line in the Magento API docs, because the solution was right there.
So: you don't need to set the currentStore each time, you just need to append the store id or code to the update array:
$soapClient->call(
$soapSession,
'catalog_product.update',
array($sku, $localized_product_data, 'fr')
);
This works perfectly.
Let's say I have a Rails 3 app that displays videos. The user can "Like" or "Dislike" the videos. Also, they can like/dislike other things like games. I need some help in the overall design and how to handle the RESTful routes.
Currently, I have a Like Class that uses polymorphic design so that objects are "likeable" (likeable_id, likeable_type)
I want to do this via AJAX (jQuery 1.5). So I was thinking something like:
javascript
// these are toggle buttons
$("likeVideo").click( function() {
$.ajax({
url: "/likes/video/" + video_id,
method: "POST",
....
});
} );
$("likeGame").click( function() {
$.ajax({
url: "/likes/game/" + game_id,
method: "POST",
....
});
} );
rails controller
Class Likes < ApplicationController
def video
# so that if you liked it before, you now DON'T LIKE it so change to -1
# or if you DIDN'T like it before, you now LIKE IT so change to 1
# do a "find_or_create_by..." and return JSON
# the JSON returned will notify JS if you now like or dislike so that the
# button can be changed to match
end
def game
# same logic as above
end
end
Routes
match "/likes/video/:id" => "likes#video", :as => :likes_video
match "/likes/game/:id" => "likes#game", :as => :likes_game
Does this logic seem correct? I am doing a POST via AJAX. Technically, shouldn't I be doing a PUT? Or am I being too picky over that?
Also, my controller uses non-standard verbs. Like video and game. Should I worry about that? Sometimes I get confused on how to match up the "correct" verbs.
An alternative would be to post to something like /likes/:id with a data structure that contains the type (game or video). Then I could wrap that in one verb in the controller...maybe even Update (PUT).
Any suggestions would be appreciated.
Rest architectural style does not specify which "verb" you should be using for what. It simply says that one can use HTTP if they want to for connectors.
What you are looking for is HTTP specifications for method definitions. In particular POST is intended for:
- Annotation of existing resources;
- Posting a message to a bulletin board, newsgroup, mailing list,
or similar group of articles;
- Providing a block of data, such as the result of submitting a
form, to a data-handling process;
- Extending a database through an append operation.
while PUT:
requests that the enclosed entity be stored under the supplied Request-URI. If the Request-URI refers to an already existing resource, the enclosed entity SHOULD be considered as a modified version of the one residing on the origin server.
Which category your functionality falls into is up to you - as long as you are consistent with yourself about it.