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Updated 044 Hello World Component with Joomla Component Builder Creator Extended (markdown)

Amigo 2019-08-16 16:17:26 +02:00
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044-Hello-World-Component-with-Joomla-Component-Builder-Creator-Extended.md

@ -135,7 +135,7 @@ The first field that we are going to create is a Text field, which we will call
[00:22:19](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h22m19s)
Now in regards to the Database, that is what these features are all about. Since Text Fields can differ, not all of them are going to be this size. It is up to you to decide what kind of Text Field this is going to be. A bit more knowledge about MySQL and Databases is necessary to effectively use this. [00:22:49](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h22m49s) If you do not know what would be the best for a Text Field or a Date Field, Google that or simply look at Joomla's own implementation. It has an article Manager, and you can go into its XML Database and look at what Database Values was used and just use the same whatever be the case.[00:23:14](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h23m14s) Because these values are all movable, and by setting them wrong, could break things. Having created our first field, we can reuse Name and maybe also Description. [00:24:23](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h24m23s) Those are part of the Demo Component. Since Fields can be linked into any Admin View and therefore belong to any Component, it does not matter if it is already linked to the Demo Component. Although, if it is changed, it will affect both Components.
Now in regards to the Database, that is what these features are all about. Since Text Fields can differ, not all of them are going to be this size. It is up to you to decide what kind of Text Field this is going to be. A bit more knowledge about MySQL and Databases is necessary to effectively use this. [00:22:49](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h22m49s) If you do not know what would be the best for a Text Field or a Date Field, Google that or simply look at Joomla's own implementation. It has an article Manager, and you can go into its XML Database and look at what Database Values was used and just use the same whatever be the case. [00:23:14](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h23m14s) Because these values are all movable, and by setting them wrong, could break things. Having created our first field, we can reuse Name and maybe also Description. [00:24:23](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h24m23s) Those are part of the Demo Component. Since Fields can be linked into any Admin View and therefore belong to any Component, it does not matter if it is already linked to the Demo Component. Although, if it is changed, it will affect both Components.
### Creating an Admin View - Preparations - Object Orientated Development
@ -251,9 +251,13 @@ Now the Component can be installed by clicking this 'install com_hello_world_v2_
[00:44:42](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h44m42s)
There is no image showing because a Component image has not been selected.(See video). Go back, and clear the temporary folder. [00:45:01](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h45m01s) For example, the Demo Components Image is selected as our Hello World Component. In the Component, there is a area to select an Image. Save and close again. Go back to the Compiler and compile it again and click 'Install'. Now there is a new Component in this Joomla Website. Open in a new tab. [00:45:45](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h45m45s) The Component has now been installed. It has a Greetings Tab and an Add Greetings Tab. There is no images selected for it. Going back to the Admin Views and then to Greetings and first click on Greetings as an Admin View. There is a place for Icons and the Add Icon. [00:46:13](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h46m13s) Select the bucket as the 'Icon' for 'Greetings' and another bucket with a little green plus is added for 'Add a Greeting'. Click Save and Close.<<<<<<<<<<<<<<
There is no image showing because a Component image has not been selected. (See video). Go back, and clear the temporary folder. [00:45:01](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h45m01s) For example, the Demo Components Image is selected as our Hello World Component. In the Component, there is an area to select an Image. Save and close again. Go back to the Compiler and compile it again and click 'Install'. Now there is a new Component in this Joomla Website. Open in a new tab. [00:45:45](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h45m45s) The Component has now been installed. It has a Greetings Tab and an Add Greetings Tab. There are no images selected for it. Going back to the Admin Views and then to Greetings and first click on Greetings as an Admin View. There is a place for Icons and the Add Icon. [00:46:13](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h46m13s) Select the bucket as the 'Icon' for 'Greetings' and another bucket with a little green plus is added for 'Add a Greeting'. Click Save and Close.
'Greetings' is set up and I am going to compile it again. [00:46:39](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h46m39s) Usually, when a change has been made, it should be compiled in the Compiler and then installed and it should then show in the Component. When it gets a little bit more advanced, we do not only look at the Component in Joomla [00:47:03](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h47m03s) but also look at the code. The two icons are in place. If I click Add Greeting, we see the Name and Greetings. There are also all these other fields added by default. So the created and the Metadata and the Permissions are all in place. That is how you would set up a basic Hello World Component.<<<<<<<<<<
I've got Greetings [00:46:39](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h46m39s) set up and I'm going to go and compile this again. That's usually how things go. We go make a change, we come back to the Compiler to compile it, install it and go look at the Component. When it gets a little bit more advanced, we not only go and look at the Component in Joomla [00:47:03](https://www.youtube.com/watch?v=IQfsLYIeblk&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h47m03s) but we also go and look at the code. There we got it, the two icons are in place. If I click Add Greeting, we see that there's the Name, there are the Greetings. There's also all these other fields added by default. So the created and the Metadata and the Permissions are all in place. That is how you would set up a basic Hello World Component.
### Hello World Configuration