I was wondering if there is a way to upload images in rails 4 not using erb. I have my html code in quotations in my model (so that i can use it as a default for when creating a page). SO I cant put erb in the quotes, cuz if i do it'll come out as the erb code and not the actual view. (i.e. the upload image form. itll come out as the actual f.image_tag instead of the actual upload button).
So I am just seeing if there another way i could implement image uploading into the quotations that wont require erb. But, uses Rails 4.
If you have plain HTML code inside the string, and just want it to be displayed, you need to call .html_safe in your view, like:
'<div id="foo">bar</div>'.html_safe()
Note that normally is a bad practice: that doesn't mean it is always bad, but it means that it is always an attention point to make sure it is the best way to do it.
If you want to do image upload without using form.image_tag, you can just put that in your view and see the generated code (Ctrl+U in Chrome), that, in this case, will be something like:
<input type="file" id="something" />
And add that to the string. Probably some finer validation and options are added too via JS, that would be a pain to add this way - one way to be to add a script tag to the html with the code.
If, however, your string already contains code like this, and you are asking way it is not working, then you need to add an eval to the caller, e.g.:
eval('form.image_tag :image')
Not that this is an even worse smell, and it should be avoided at all costs.
Maybe it would be better to add some flags in your section.rb model, and then use that in a helper or in the view render the html; for example, a has_upload? field, and then you can do something like this:
if #section.has_upload?
form.image_tag :imagem
end
Related
I'm trying to make my CSP without unsafe inline.
Since I have to manually check every file from every app, I may as well move the scripts to external files instead of creating a million word CSP entry in the web.config by adding hashes or nounces.
This seems easy enough for client side content, but many templates have razor code in then such as:
<script>
alert(#myVar);
</script>
How can I move this to external?
So in general if you JS needs some input parameters you must of course put them somewhere, and only the razor will know what they are.
The simplest way is still to just have the initial call use the variables - like in your example above. If you have security concerns, doing type-checking in razor should eliminate that for you.
For example, if you do #((int)thing.property) than it simply cannot inject any unexpected payload.
If for some reason you really, really don't want this you can use a attribute-json convention, like
<div class="myGallery" init='{"files": 17}'> gallery contents </div>
and pick it up from the js you created. but this is quite a bit of work, so I would recommend the simpler way.
I was, until now, unable to find or create a good component to print the result of a TDBGrid, so what I did was to create a couple of for ... do and then save the result in a text file and opened right after with Notepad, so the user could print or save from there. Pretty ugly, right?
Now it just came to me that I could use those loops to create HTML code instead, which is more presentable. But how can I use, for example a TWebBrowser or something else to show that result instead of the TDBGrid approach?
And how can I print this HTML (with or without the TWebBrowser, as for example if I still use the TDBGrid to show the report and the HTML approach just if the user wants to print it)?
You can use either
TWebBrowser printing abilities,
Or a pure VCL component like THtmlViewer.
I like very much THtmlViewer since it won't depend on the IE installation, is pretty fast and has good printing abilities. You can even export to pdf if needed, using e.g. Open Source SynPdf unit.
I have a number of templates that create headings based on a formula. I am wondering if there is anyway to create an "edit" link that will take you directly to that section? The way that it currently works, the edit link takes you to editing the template itself. Could I possibly create a customized link that would keep you on the page and take you to right part?
Here is some sample code to help clear things up...
Template:Head:
==={{{1}}}===
This is a heading titled "{{{1}}}"
Test Page:
=Section 1=
{{head|1.1}}
{{head|1.2}}
{{head|1.3}}
=Section 2=
{{head|2.1}}
{{head|2.2}}
{{head|2.3}}
At the moment, if I want to edit the information for template "2.3", I have to edit all of section 2. (Note that for this example, that isn't a big deal. For the actual templates I am working with on my site, the templates have dozens of parameters and there are sometimes 10 or more in a section.)
Bottom line, is there way to create a custom edit link inside of the {{head}} template that would take you directly to editing the templates call on the page "Test Page"? Hope that makes sense.
Edit: Is there perhaps a way to make use of "anchor" tags? Can anchors be passed in to the URL?
To restate your problem, when you transclude a section heading the header isn't treated as being part of the destination page, so the edit link takes you back to the source. So you need a separate container for the template in order to edit it individually, and a complete section is the smallest editable container.
The only way I can think of doing this is using subpages (or virtual subpages if you don't have that ennabled in this namespace, doesn't change anything). So instead of placing {{head|1.1}} on MyPage, put it on MyPage/Subpage1 and then transclude that into MyPage in the usual way ({{:MyPage/Subpage1}}).
{{head}} can then include a custom edit link to the template input by using HTML heading tags (<h2> is equal to ==, etc.) to suppress the standard edit link and then use one of these templates (probably {{ed right}}) to create a custom edit link pointing to MyPage/Subpage1.
The way to create anchors in Mediawiki, by the way, is to use a <span id="name"/> tag, but that doesn't create a container that can be edited (or at least, not that I've been able to work out through URL tinkering).
I'm pretty sure there's no way to do that. As far as MediaWiki's section editing feature is concerned, the only thing that begins a new section is a line of the form:
=== Some text here ===
with the number of = signs determining the level of the heading. There's no way to get MediaWiki to let you edit any segment of the document that doesn't begin and end with such a line (or the beginning or end of the page).
Well, OK, I'm sure you technically could do it with an extension, in the sense that you can do anything with a MediaWiki extension. All you'd need to do is provide some way (e.g. a special parameter in an edit URL) for to user to indicate "I want to edit this template", then extract the template from the wikitext, present it to the user for editing, and write the result back into the page text over the original.
The tricky part will be extracting the template from the page source. (Finding and replacing templates on a page is a fairly common task for MediaWiki bot writers, so you might want to look for ideas there.) Whatever method you end up using for that, there will probably be edge cases where you need to give up and tell the user "Sorry, but I can't figure out how that template is transcluded here."
I have an HTML page which needs to display some HTML generated by the user on the Administration area (like a blog, for instance). The problem is that the user sometimes needs to copy-paste tables and other "garbage" content from Word/Excel to the WYSIWYG editor (that has the proper "paste from Word" function). This causes the resulting HTML code to be very dirty.
It wouldn't be a problem unless some of these pages are shown totally wrong: other divs AFTER user's HTML code are not in their supposed position, floats are not respected... etc...
I tried putting a div:
<div style="clear: both;"></div>
without success. I even tried with iFrames, but iFrames accept only external webpages (if applicable...).
The question is: is there any tag or method to put a part of an HTML code inside a webpage discarding all formatting AFTER this code?
Thank you.
To my knowledge, you simply want to end all divs. HTML is a very simple code, with very simple options. Your example doesn't work because HTML isn't that advances. You can either start a function <...> or end a function .
Ideally what you want is a piece of code that puts their work in a separate frame entirely, so as soon as the page passes their code, it goes back to the correct formatting.
Or, you could be really sloppy and put one hundred 's in, just in case.
I am scraping a website and am trying to pull out certain elements from the HTML. In the sites I am scraping, there are script tags with a bunch of info in them however, there is one part inside these tags that I am interested in. The line basically looks like:
'image':'http://ut5.example.com/t/231/3_b_643435.jpg',
With some stuff above and below it. Now, this is different for each page source except for obviously the domain and some of the subfolders that store the images.
How would I go about looking through the source for this specific line, and cutting out just the URL? I would need to use regular expressions I feel as the URLs are dynamic.
The "gsub" method does something similar to what I want to search for, with its ability to use /regex/. But, I am not wanting to replace anything, I just want to find that URL in the source code using a /regex/ and copy it.
According to you comments, this is what you're looking for I guess
var regex = /http.+/;
Example http://jsfiddle.net/Km9ZB/