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Updated 056 How to use the file field type to upload a file in JCB (markdown)

Amigo 2019-09-18 10:26:14 +02:00
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056-How-to-use-the-file-field-type-to-upload-a-file-in-JCB.md

@ -183,13 +183,12 @@ Everything is moved into place and a trial run can be done. It has been saved su
[00:46:09](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h46m09s) [00:46:09](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h46m09s)
Before we continue with that kind of custom scripting, we need to take what we have done so far and add it to JCB. We have done it in the IDE, and if we compile and install this component now, you will overwrite everything that you have written, and it will be gone. Let's go grab that custom scripting and add it to the component in JCB. (See video) We want to grab everything from my 'uploads function', [00:46:41](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h46m41s) do 'check upload', 'remove file' and say 'cut' and then place that in the clipboard, and go to JCB, in the 'Look Admin Views' which is where all this is happening. If it is opened, there is a place called 'Custom Buttons'. You are going to say 'Yes'. [00:47:07](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h47m07s)<<<<<<<<<<< Before we continue with that kind of custom scripting, we need to take what we have done so far and add it to JCB. We have done it in the IDE, and if we compile and install this component now, you will overwrite everything that you have written, and it will be gone. Let's go grab that custom scripting and add it to the component in JCB. (See video) We want to grab everything from my 'uploads function', [00:46:41](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h46m41s) do 'check upload', 'remove file' and say 'cut' and then place that in the clipboard, and go to JCB, in the 'Look Admin Views' which is where all this is happening. If it is opened, there is a place called 'Custom Buttons'. You are going to say 'Yes'. [00:47:07](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h47m07s)
Then there is the PHP(controller method), nothing is going to be added there, but there is the PHP(model method), this is the place for us to add some script to the model. We are going to paste what we have cut, right in here, and in the PHP List View (controller method) nothing is added and also in this PHP List View (model method) nothing is added. [00:47:32](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h47m32s) We are adding that which we have written to the model method, '_Add your PHP here!_' is going to go into the model as 'methods'. This is the methods, that '`checkupload`' is a method, that '`myUploadFunction`' is a method. We want it to be available to the class from now on. [00:47:59](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h47m59s) Further custom scripting is necessary to get it to remove an old file when a new one is uploaded. At this point, it will only add the new file and leave the old one. It could be that more files get added to the image folder, without it being removed. There is a `removeFile` function which makes it quite easy to fix it if you are familiar with PHP. <<<<<<<<<<<<<<<<<<<
Then there is the PHP(controller method), nothing is going to be added there, but there is the PHP(model method), this is the place for us to add some script to the model. We are going to paste what we have cut, right in here, and in the PHP List View (controller method) nothing is added and also in this PHP List View (model method) nothing is added. [00:47:32](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h47m32s) We are adding that which we have written to the model method, '_Add your PHP here!_' is going to go into the model as 'methods'. This is the methods, that '`checkupload`' is a method, that '`myUploadFunction`' is a method. We want it to be available to the class from now on. [00:47:59](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h47m59s) We are not at this point dealing with if you upload<<<<<
a new file that it removed the old one. That should still be further custom scripting. At this point, all add the new file. It won't remove the old one. It could be that it's adding more files and more files and it just gets added to the image folder, but it's not being removed. You have the remove [00:48:26](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h48m26s) file function, so you could fix this quite easily. I'm not going to show you how to do that. I want to encourage you to study up some of your PHP as well.
### Adding the Script To The Save Method ### Adding the Script To The Save Method
[00:48:43](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h48m43s) [00:48:43](https://www.youtube.com/watch?v=o482sK4DxkM&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h48m43s)