In angular2 using aberezkin/ng2-image-upload
I have in my template
<image-upload
[max]="1"
[url]="uploadUrl"
[preview]="true"
[buttonCaption]="'Select Images!'"
[dropBoxMessage]="'Drop your images here!'"
(onFileUploadFinish)="imageUploaded($event)"
(onRemove)="imageRemoved($event)"
(isPending)="disableSendButton($event)"
></image-upload>
This is part of a larger form for an e-commerce site's product capture/edit screen including this image upload
It's all great for a new product and a new image but if I have to edit an existing product and thus have the data from the server for that product, including the image, how can I pre-populate image-upload with this image thus allowing a user to keep it or delete it/change it?
Also is there a way to filter file type allowed?
So you want to let user select the image and able to change it befor Uploading
I made a simple example of preview and uploading image I think it will be helpful for you
Preview and uploade image angular2
Related
I have a Laravel model which is called for example, Product, with MySQL table products underneath. In my React SPA, user have the ability to set background of the product which can be a color (assigned in my React SPA through css), or an image uploaded by that user. The product can be either private, or public (accessible by anyone)
What's the best way to accomplish this?
Solution 1: Store image BLOB or dataURL in MySQL field. Similar to what is described here
Solution 2: Use Laravel Storage - So on altering the product, I would put the image in the Storage, and only store link to that image in MySQL field. Then in my React app, after fetching product, I would need to request the image again (CSS would do that using link provided from the response)
I'm curious if solution 1 is worse because of performance. But as I'm looking at the solution 2, I realize that putting the file in the Storage would require that file to be public. Which solution would you pick and why?
I have the following codes to test the image_style_url() on the latest drupal(v7.59)
<img src=“<?= file_create_url($fileuri); ?>” />
<img src=“<?= image_style_url(“medium”, $fileuri); ?>” />
The file_create_url() can show the original image properly, and the image_style_url() can only give the styled image url, but not creating any styled image in the styled image folder.
the public:// and the /tmp directriea are in 777 permission setting, so it won’t be related to permission problem.
Can someone tell me what is wrong with my drupal?
Seems you have to create the image derivate first. Normally this happens automatically when uploading an image via an image field upload. But the automatic derivate creating might simply get skipped on file field uploads, or when using some other image which isn't managed by Drupal at all, or when you added an image style after you already uploaded the image.
Have a look at image_style_create_derivative($style, $source, $destination). Check out the comments as well as $style needs to be an array returned by image_style_load('MYSTYLE').
Creates a new image derivative based on an image style.
Only issue left open is how to check first if the derivate already exists before calling that function. Maybe you can check what file_exists(image_style_path($style_name, $file_uri)) returns, first.
Read more: https://drupal.stackexchange.com/a/22555/15055
Nothing wrong with your Drupal. Derivative image is not physically created until someone visits the listing where that style is used.
Example: You create new node and upload an image on it. Original image is within files folder. But if you use for example teaser image style and if you go to teaser folder the image is not created there until someone visits the page where "teaser" image style is used. You can easily test this on clean Drupal. Basically the image is created on the fly on HTTP request.
i would like to create an image gallery on my homepage in drupal. Each image will have been uploaded by the user, and, as i understand it, will be saved in some image directory folder in drupal. My question concerns a recent tip i picked up in response to the general debate whether or not it is good to store images as blob in mysql. The tip was to store the filenames of the images in mysql so you can essentially still sort the files. I was wondering whether this would be possible even if the files url is in drupal so to speak. It should be possible shouldn't it? I new to programming you see and want to the images on my homepage to be periodically refreshed according to a define sorting function. I would greatly appreciate any response to this question. Cheers.
You can using content types and views module for create gallery in Drupal 7.
First create new content type with gallery name(admin/structure/types/add).
Then add a image field to gallery content type and save it.
If you want have thumbnail of image you should create a image style. for example create a image style with thumbnail_custom name and add suitable effect(admin/config/media/image-styles/add). You will use of this image style in views in the next step.
Then create a new view with gallery-view name. uncheck create a page, check create a block, enter block title and item per page you want(admin/structure/views/add).
In Filter criteria from block details add content type gallery.
In Fields add Content image that appears in node:gallery and select and select thumbnail_custom for image style option.
Save view.
This view block appears in Blocks section and you select region for it.
If you want this block appears only in the front page, in configuration of this block in the section pages of visibility settings check "Only the listed pages" option and then enter "<front>" phrase in textarea.
Here is a scenerio, on my products page I want to add an image of the product dimensions but for this image I want to use thumbnail which is different from the actual image which will say Dimensions. This will be applied to all the products across the store. So there will be one thumnail image for all the products that will be associated with it’s dimensional image. I want to show it on the gallery page as last image.
Any help would be greatly appreciated.
Regards,
Avian
If I'm understanding you correctly, you just want every product to have a thumbnail that can be set to be one of several images.
You will need to create a custom attribute for your products, and then programmatically set your current inventory to your defaults. (Or manually change them) There is a knowledgebase article that will assist you with custom options (if applicable), or another article I found via Google to assist in custom attributes.
It's likely not the best way of doing it, but an example of the JavaScript method I was talking about is simply to add the following into a JS file on your server.
document.observe("dom:loaded", function() {
$$('.catalog-product-view .image-thumb:last img').each(function(item){item.src = 'http://domain.com/path/to/image.jpg'});
}
I have exhausting goggle looking for a way to upload more than one db images.
I had a look at
http://www.mikesdotnetting.com/Article/125/ASP.NET-MVC-Uploading-and-Downloading-Files or http://mattias-jakobsson.net/post/2009/11/19/Handling-image-uploads-with-AspNet-Mvc.aspx or http://www.johnpscott.co.uk/devnotes/picpick/default.aspx or http://rusanu.com/2010/12/28/download-and-upload-images-from-sql-server-with-asp-net-mvc/ and so on. I no luck.
Does anyone has a tutorial or recommend a book that demostrate how to upload more than one db images. I am using vs 2010, asp.net mvc3 in C# with SQL Server 2008R2. All I am trying to do is to have couple db images for each product.
Thanks
The first link you provided is a good start for what you need.
Store all images for a product change....
It shows how to upload multiple files. From this you could modify the table where the images are inserted to add a key for the record relation back to your product.
Retrieve all images for a product change...
To pull them back from the database you would call the code in the same article (GetFile), modifying the select statement to include your product key INSTEAD of the ID of the individual image.
Display all images for a product change...
This is where it changes quite a bit. The author of the first article still returns one file as a FileContentResult. Obviously, this won't work for your situation.
Have a look at this article. It uses an XML file to load up multiple images BUT you would replace this code with the code in GetFiles to create the Image List. It shows how to create a controller, model and view for this. You could create a partial view to have the images on the same page as the product view.
This sample shows how to get an image list out of the DB into a view. (To help with modifying GetFiles to better work for this...)