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DOC: Updated README with samples

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GridField Bulk Image Upload
========================
===========================
SilverStripe 3 GridField component for uploading images in bulk into the managed DataObject relation, with option to edit fields on the fly.
SilverStripe 3 GridField component for uploading images in bulk into the managed Model relation, with option to edit fields on the fly.
This component takes bit and pieces around from CMSFileAddController, GridFieldDetailForm_ItemRequest, UploadField, and it overrides and adds some behaviors, templates and styles.
## Requirments
@ -12,26 +12,88 @@ This component takes bit and pieces around from CMSFileAddController, GridFieldD
* Run dev/build?flush=all to regenerate the manifest
* run ?flush=all in CMS to force the templates to regenerate
## Usage 1
Simplest usage, add the component to your GridField as below. The component will find the first Image has_one relation on the managed object and it's editable db fields
## Usage
### Usage 1
Simplest usage, add the component to your GridField as below. The component will find the first Image has_one relation on the managed Model and it's editable db fields
:::php
$config->addComponent(new GridFieldBulkImageUpload());
## Usage 2
Same as 1 but you can specify which Image field to use and which fields are editable
$imageField: string: The name of the image field to use (should have 'ID' at the end: If your relation is set has 'MyImage' => 'Image', the parameter should be 'MyImageID')
$editableFields: array: list of db fields name as string that will be editable like: array('myTextField', 'myVarcharField', 'myEnumField')
### Usage 2
You can specify which Image field to use and which fields are editable from the managed Model
$imageField (string): The name of the image field to use (should have 'ID' at the end: If your relation is set has 'MyImage' => 'Image', the parameter should be 'MyImageID')
$editableFields (array): list of db fields name as string that will be editable like: array('myTextField', 'myVarcharField', 'myEnumField')
:::php
$config->addComponent(new GridFieldBulkImageUpload( $imageField, $editableFields ));
### Sample Files
Page Model
class Page extends SiteTree {
public static $db = array(
);
public static $has_many = array(
'Visuals' => 'Visual'
);
public function getCMSFields() {
$fields = parent::getCMSFields();
$config = GridFieldConfig_RelationEditor::create();
$config->addComponent(new GridFieldBulkImageUpload());
$f = new GridField('Visuals', 'Case Study Visuals', $this->Visuals(), $config);
$fields->addFieldToTab('Root.Visuals', $f);
return $fields;
}
}
Visual Model
('Image', 'Type', 'Title' and 'Embed' Fields will be picked up automatically by the component)
class Visual extends DataObject
{
public static $db = array(
'Type' => "Enum('Image,Embed','Image')",
'Title' => 'Text',
'Embed' => 'HTMLText'
);
public static $has_one = array(
'Page' => 'Page',
'Image' => 'Image'
);
public function getCMSFields() {
$fields = new FieldList();
$fields->push( new DropdownField(
'Type',
'Type of visual',
singleton('Visual')->dbObject('Type')->enumValues()
));
$fields->push( new TextField('Title', 'Title and Caption for images (useful for SEO)') );
$fields->push( new TextareaField('Embed', 'HTML Embed code') );
$f = new UploadField('Image', 'Image file');
$fields->push($f);
return $fields;
}
}
## Notes
* The HTML form fields for each editable fields are taken from the DataObject's getCMSFields() method
* Only (HTML)Text/Varchar and Enum fields are picked up by the automatic config
## @TODO
* Add option to specify upload folder
* Styles: fade back progress to blue once updated
* Add individual actions for each upload (update + cancel)
* Styles: fade back progress to blue once updated, add .loading class to buttons when saving/canceling
* Handle and display errors better for: creation, update, cancel
* Make it work not only for images -> might need to rename this component then?