I have been trying to set up the tutorial, https://github.com/blueimp/jQuery-File-Upload/wiki/How-to-submit-additional-Form-Data with rails 3. However I am slightly confused about how Form Data works with Rails Object. From my research it seems that Form Data with serializeData returns an array. However, I am totally lost about what to do after that.
I am wondering how do I use data.FormData and put it in my rails object. For example I have an art model in Rails that file upload will upload a picture to. What can i put in my controller under create so that the title of the art object correspond to the title under the label in td class="title" Title: input name="title[]" required /label /td "Thanks.
Regards,
Kane
Related
I guess this question has already been posted in different forms over time, but I still didn't find the answer I'm looking for:
I'm having trouble implementing vueJS in my Laravel app, I want to keep server and front-end very much separated but in this case it doesn't seem so easy. I have the classic blog project, where every article has some tags associated with it, so there's a classic many-to-many relationship and everything is set.
When I edit an article, I wanna have a section where all the tags are displayed and also you can add a new tag (very stackoverflow-like), what I wanna achieve is that my Javascript (and so my vue) only manages the rendering of those tags on the page, so that when I enter in the edit page I can see all associated tags, BUT, i only want to edit the input tag inside my form, I don't want to do a POST request in Vue, I want to keep it PHP, I want laravel validation, I don't want to write another one for the javascript.
I want javascript to only edit the DOM when I want to add a tag, so that I insert a new one and it immediately gets pushed inside the already existing array of tags, so in real-time the tags are updated, but when I submit the form it is my PHP that handles the server request, not vue, and this for now seems impossible because in order to update the tags correctly when adding one (or removing one), the data inside vue needs to have a list of tags, otherwise it won't work.
This means I have to create a new route (for example /tags/{article_id}) and a new controller function in order to return tags associated with that article, so this also means that I can't give to PHP the tags that I rendered (cause for example they're in a list, not an input select (due to the appearence I want to give)) isn't there a cleaner way to do this?
I'm trying to wrap my head around vuejs but sometimes it feels like stuff would be easier in jQuery (?), I don't know... I hope I explained myself correctly.
In PHPfox, i want to call "Pages" name in drop-down in Signup form. Reason for calling "Pages", Actually i have created many pages for college name & that are saved in database. So if someone comes for signup, i want to show them college name in drop-down (which are basically "Pages").
Please help me.
Thanks in advance.
You will need 2 plugins, one to show the HTML and one to process what to do with the user input:
1) Make a plugin that fetches the pages, maybe the hook user.component_controller_register_1 or another in that controller would do but otherwise you can always use a low level hook like run_start and check if its the section where you want it.
To show the HTML you have 2 options: include a JS file to populate the sign up form with anything that you want, or if you have a custom template you can just assign the array to the template variable and look through it in your template.
2) Once the html part is showing and working make a plugin for the sign up routine, I think the hook user.service_process_add_1 should be enough given its location.
Dont forget that the input name for the signup is an array, so your drop down needs to look somewhat like this:
<select name="val[my_dropdown]">
I have two input fields first name and last name.
Application was running really well.
Suddenly someone came in from Mars and input something like this in those input fields
*(~'##~>?<+!""*%$)!
for both first name and last name. Now don't ask me why he did this cause in Mars this is very common. You can try it on this fiddle
http://jsfiddle.net/farrukhsubhani/3RjRF/
This text then went into my database and now when i retrieve it it came back like this
*(~'##~>?<+!""*%$)
which is ok for me as its html and I can place it back into knockout and it gets populated as html as you can see in fiddle above. However this Mars guy then thought that on Earth this is not a nice name to be with so he tried to edit field.
The above fiddle is kind of that edit page which shows him old value at bottom and two fields at top. He does not know html so he thought we have changed his name in input fields however I need to know
When passing text to knockout to give initial value to an input field is it possible to tell it that consider this text as html so it renders properly in input field
The other way around is to send him to http://www.w3schools.com/tags/ref_entities.asp and tell him about reserved HTML characters. This info has been stored in database (using Entity Framework simple person.fname and person.lname both with attribute AllowHTML) so on my fiddle i have just placed it in two variables and you can see how actual text boxes are different than html below. If i dont bind using Knockout then actual text is shown in these boxes and user can edit <>' signs without any problem.
Anyone with a solution before he leaves our planet. This can change alien life on our planet.
Update
If i go into this field and paste (~'##~>?<+!""*%$)" binding works fine and you can copy this and paste it into fiddle to see that. However its not taking that value from Javascript variable to knockout expects it to be a string and html special characters are not shown properly in input field.
We have done another test without Knockout and this text does get rendered within the field when you try to edit it its fine.
We have updated JSfiddle to work without JQuery and its the same result if you store it in a js variable and give not value to input field
http://jsfiddle.net/farrukhsubhani/3RjRF/3/
If we assign value to input field and just use jQuery to populate fullname then it works
http://jsfiddle.net/farrukhsubhani/3RjRF/4/
This last fiddle is a working example and we want Knockout to do what JQuery is doing.
I think the question then comes to how can this text be stored in javascript variable and placed into input field as html text so special characters appear unescaped. You can try unescape on jsfiddle that did not work for us.
Somewhere along the trip into (or maybe out of) your database, the value is being HTML-escaped. It's not Knockout itself that's doing it. You're going to need to track that location down, but you can't just disable it; you're going to have to replace it with something that sanitizes the result or otherwise you're opening yourself up to cross-site scripting attacks (any <script>s from external sources inserted into the input would have complete access to your data).
Any time you see the html: binding used, warning bells should go off in your head and you should VERY carefully to check to ensure that there's NO possibility of raw, unexamined user input making it into the string that gets displayed.
Ok here is what i did at the end
http://jsfiddle.net/farrukhsubhani/3RjRF/7/
I have done following:
I have added value attribute to input field and placed the input text as it came from server into it. Because I am using TextBoxFor in MVC it did that for me.
Before I apply knockout binding I have picked this value up using $('#kfname') and passed it to the actual binding so it used the value that came from server. Previously it was passed like (#Model.fname,#Model.lname)
I think what this did was allowed jQuery to pick up the value and assign it to binding instead of variable
ko.applyBindings(new ViewModel($("#kfname").val(), $("#klname").val()));
Hopefully this would help someone using knockout.
I am a kind of new on ROR, I want to upload an image using simple input tag and don't want to use form for that. The basic functionality of Paperclip is known to me. If I am not wrong then the format of object that is being passed to save image is :
"image_object"=>
[#< ActionDispatch::Http::UploadedFile:0xb5ad25f4
#content_type="image/gif",
#headers=
"Content-Disposition: form-data; name=\"pic[]\"; filename=\"test.gif\"\r\nContent-Type: image/gif\r\n",
#original_filename="test.gif",
#tempfile=#<File:/tmp/RackMultipart20131112-17750-1lprijc>>]
I want to upload image using the following steps:
1. Using Jquery, I want to fetch the appropriate details(file parameter) of selected image in input tag and send those using Jquery/ajax.
2. By passing that parameters to rails controller I want to use those details to generate an object(as sample shown above) that can be used to save Image in my application.
My questions are:
1. which Jquery method should I use and what are the parameters that are necessary to generate the image object?
2. On controller side, how to generate Image Object using those details?
Thanks in advance.
I'm not sure if I understood your question right. But based on the details you provided there are many options you can go for.
The simplest one is as follows:
Just add :remote => true to the rails form and submit the form and on the controller side you can create the object.
But if you want to be able to upload an image through a REST API then this link should help.
You can visit the SO question as well here which describes exactly what u want.
First sorry if its a stupid guestion but im a really big beginner.
I would like to make an image gallyer similar to facebook, but what i dont really understand is te logic.
I made a multi image upload, it saves the image nam and extension to the database with a title .
A folder is created by the title name.
My problem is i dont know how to select them.
What i mean a person uploads 20 images in folder hello, on the page show the hello with one of the thumbnails and when i click it redirects me to the other pictures.
So tihs is the logic what i dont really understand, and i dont want anybody to write this for me, i only would like the opinion or a hint form a more expreienced developer.
Thank you
In your DB, keep track of the cover photo for each album. Since you probably want to allow users to name albums you might as well save that in there, too.
Table::albums
- id
- name
- photo_id //cover photo, or even the link to the image can be saved here directly if you don't like joins
- ...
Table::album_has_photos
- id
- album_id
- name
- url
- ...
To view the album overview: in your album controller extract the album names, cover photo links from table::albums and send those to the view;
In your view set up a link around each of the cover photos to a controller that loads the album contents from table::album_has_photos;
Display photos from one album and add visual effects.
Ooptional: add pagination to the album overview.
The best idea would be to keep the url of the images in the db (full url or relative - doesn't matter) and possibly the gallery id (if you're using more than one gallery). Then, you'd use the Database class to select all the image urls and send that data to the view. In the view, you can use a foreach loop to generate an appropriate tag for each of the selected images. After that, you could possibly add a lightbox plugin of some sort to have a nice popups when you click on thumbnails.