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Updated 028 How to change exported values and setup custom import options (markdown)

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028-How-to-change-exported-values-and-setup-custom-import-options.md

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# HOW TO CHANGE EXPORT VALUES AND SETUP CUSTOM IMPORT OPTIONS
[00:00:00](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h00m00s)
* ### Example Components
A short explanation of how to change the values that are being exported and to have a Custom Import option with an import of the data. Component Builder allows you to have a Import and Export function by default in all the List Views of the components. [00:00:35](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h00m35s) The component called IP Data is used to take a IP address and translate it to determine from which country it came and then a costing update is performed on your website based on that IP Data.
@ -10,21 +12,28 @@ Select IP Tables which is on the IP Table Dashboard. [00:01:07](https://www.yout
### Export Feature
[00:01:26](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h01m26s)
If 'Export Data' has been clicked without selecting any values, it will give this warning: 'Please first make a selection from the list'. [00:01:35](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h01m35s) Only values that had been selected may be exported. If all have to be exported, change this value to 'all'. In some instances, if the table is too long, it is not possible to export all the values at once.
Exporting the data in large quantities is not advisable in Joomla. If quantities exceeds 3000 items, rather go to MySQL and get a dump file. [00:02:16](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h02m16s) Although it is often seen that the Listview is being used for up to 10000 items, quite complex inheritance in structure is involved. But in this instance having the import and export in mind, makes it quite different. If for example this need to be exported but for some reason this 'ZZZ' or 'AUS' value should instead be replaced by the country name, the following would be a simple implementation of how to perform it. [00:02:51](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h02m51s)
Exporting the data in large quantities is not advisable in Joomla. If quantities exceeds 3000 items, rather go to MySQL and get a dump file. [00:02:16](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h02m16s) Although it is often seen that the Listview is being used for up to 10000 items, quite complex inheritance in structure is involved. But in this instance having the import and export in mind, makes it quite different. If for example this need to be exported but for some reason this 'ZZZ' or 'AUS' value should instead be replaced by the country name, the following would be a simple implementation of how to perform it.
### Exported Example In XLS Format
[00:02:51](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h02m51s)
Click 'Export', save this(Opening Ip_tables). It has been exported, all these AUS values are displayed, and some other values from the database as expected. But if it is suppose to be a different value when it is exported, then take the next step.
### Export Data In Code
Component Builder has this 'getExportdata' method in the model.[00:03:26](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h03m26s)
This 'getExportdata' method has this extra value called '$_export' set to 'true'.[00:03:52](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h03m52s) A reason why this had been added, is to target this(See video) method with custom scripting. But the difficulty is that this part($group to $query) is custom scripting and it is also been added into the actual 'getlistquery'. [00:04:21](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h04m21s) It is the same custom scripting. In the compiler the same custom script is added into the 'getlistquery' as into 'getExportdata. The way to know where it gets executed, is through this value '$_export'. [00:04:49](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h04m49s) This value is not set in the 'listquery', it is only set in the Export Data.
[00:03:26](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h03m26s)
Component Builder has this 'getExportdata' method in the model. This 'getExportdata' method has this extra value called '$_export' set to 'true'.[00:03:52](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h03m52s) A reason why this had been added, is to target this(See video) method with custom scripting. But the difficulty is that this part($group to $query) is custom scripting and it is also been added into the actual 'getlistquery'. [00:04:21](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h04m21s) It is the same custom scripting. In the compiler the same custom script is added into the 'getlistquery' as into 'getExportdata. The way to know where it gets executed, is through this value '$_export'. [00:04:49](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h04m49s) This value is not set in the 'listquery', it is only set in the Export Data.
### Admin View - PHP - (GetListQuery)
[00:04:54](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h04m54s)
The custom scripting is done in the 'Editing the Admin View' area. With the Admin View open, go to PHP and then scroll down until the method ' Add PHP (getListQuery - JModellist)' can be seen and then it should be set to 'Yes'. [00:05:43](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h05m43s) The code, that is put there, is added both to the 'getListQuery', as well as to 'exportquery'. If the values need to be changed that had been exported, but not the values that's being shown in the component, it have to be done in the same area. It will be noticed that the same code appears in two distinct places(See video). [00:06:22](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h06m22s) If some value needs to be changed, that may be done simply by adding another 'lookup', and add this '$_export=true'. To see where all this '$_export=true' is appearing, go to any List model and search and it may be seen in different places(See video). [00:06:55](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h06m55s)
Go to the 'getExportdata' area. In the previous tutorial it had been explained how to add some customization to the values in the 'listview', some HTML, Here(See video) should be determined if the 'export' is 'set' or is it 'true'?
@ -37,10 +46,14 @@ The adding of this customization of coloring is avoided because it should not be
### Import Features Explained
If a different import type than usual is needed, then to import values, these (figures in the assign column) need to be updated. [00:09:40](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h09m40s) If the ID is left in, it updates, if the ID is removed, it creates. If for instance the IDs is not used but rather these values instead, then a custom import concept needs to be created. Although a attempt had been made to make it simple it turned out to be still complex. [00:10:13](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h10m13s)
[00:09:32](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h09m32s)
If a different import type than usual is needed, then to import values, these (figures in the assign column) need to be updated. [00:09:40](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h09m40s) If the ID is left in, it updates, if the ID is removed, it creates. If for instance the IDs is not used but rather these values instead, then a custom import concept needs to be created. Although a attempt had been made to make it simple it turned out to be still complex.
### Custom Import Tab(default import code)
[00:10:13](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h10m13s)
Go to Custom Import in the Editing Admin View. There is a warning. Below it,'yes' should be selected in the Custom Import option and it will load (See video) the actual script into these areas that are used by default in these various concepts. [00:10:38](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h10m38s) If this(PHP) does not make sense, rather not attempt to do it but do a search on courses like lynda.com and Udome etc. [00:11:09](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h11m09s) Changes may be made to this, for example: take out a portion, then do a search, put something in like 'your name'. Save and compile it. Do a search to see where it appears. [00:11:31](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h11m31s)
The Default Import method is not completely removed when this kind of changes is performed. There is a way that these changes can be done, and have two Import Methods next to each other. It is not that easy but it is possible and it all depends on what is being done in this HTML and PHP view area. [00:11:59](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h11m59s) So it depends on what is done in the view. Currently this is set up to do a normal import as is usually done. Changing this will also change the normal Import concept. That is how to change the Custom Import concept. Please read through the code. Maybe compile it. [00:12:33](https://www.youtube.com/watch?v=fau5mZ6naLc&list=PLQRGFI8XZ_wtGvPQZWBfDzzlERLQgpMRE&t=00h12m33s) See how the default import and concepts work and make changes accordingly.