From f7e0bb918a7f5ac84b091ff96873f239cb978f80 Mon Sep 17 00:00:00 2001
From: Julian Seidenberg <julian@silverstripe.com>
Date: Tue, 31 Jul 2012 14:24:35 +1200
Subject: [PATCH] API-CHANGE: overriding upload field for DMS

---
 code/DMSDocument.php        |  6 ++++
 code/DMSUploadField.php     | 26 +++++++++++++++
 templates/DMSUploadField.ss | 64 +++++++++++++++++++++++++++++++++++++
 3 files changed, 96 insertions(+)
 create mode 100644 code/DMSUploadField.php
 create mode 100644 templates/DMSUploadField.ss

diff --git a/code/DMSDocument.php b/code/DMSDocument.php
index 0bb4749..1abf569 100644
--- a/code/DMSDocument.php
+++ b/code/DMSDocument.php
@@ -423,6 +423,12 @@ class DMSDocument extends DataObject implements DMSDocumentInterface {
 		$fieldsTop = $this->getFieldsForFile();
 		$fields->addFieldToTab('Root.Main',$fieldsTop,'Title');
 
+		//create upload field to replace document
+		$UploadField = new UploadField('file', 'Replace file');
+		$UploadField->setConfig('allowedMaxFileNumber', 1);
+
+		$fields->addFieldToTab('Root.Main',$UploadField);
+
 		return $fields;
 	}
 
diff --git a/code/DMSUploadField.php b/code/DMSUploadField.php
new file mode 100644
index 0000000..83f3da3
--- /dev/null
+++ b/code/DMSUploadField.php
@@ -0,0 +1,26 @@
+<?php
+
+/**
+ * Field for uploading files into a DMSDocument. Replacing the existing file.
+ *
+ * <b>NOTE: this Field will call write() on the supplied record</b>
+ *
+ * <b>Features (some might not be available to old browsers):</b>
+ *
+ *
+ * @author Julian Seidenberg
+ * @package dms
+ */
+class DMSUploadField extends UploadField {
+
+	/**
+	 * Override the default behaviour of the UploadField and take the uploaded file (uploaded to assets) and
+	 * add it into the DMS storage, deleting the old/uploaded file.
+	 * @param File
+	 */
+	protected function attachFile($file) {
+		$dmsDocument = $this->getRecord();
+		$dmsDocument->ingestFile($file);
+	}
+
+}
diff --git a/templates/DMSUploadField.ss b/templates/DMSUploadField.ss
new file mode 100644
index 0000000..6a10370
--- /dev/null
+++ b/templates/DMSUploadField.ss
@@ -0,0 +1,64 @@
+<ul class="ss-uploadfield-files files">
+	<% if $Items %>
+		<% loop $Items %>
+			<li class="ss-uploadfield-item template-download" data-fileid="$ID">
+				<div class="ss-uploadfield-item-preview preview"><span>
+					<img alt="$hasRelation" src="$UploadFieldThumbnailURL" />
+				</span></div>
+				<div class="ss-uploadfield-item-info">
+					<label class="ss-uploadfield-item-name">
+						<b>{$Title}.{$Extension}</b>
+						<span>$Size</span>
+						<div class="clear"><!-- --></div>
+					</label>
+					<div class="ss-uploadfield-item-actions">
+						<% if Top.isDisabled || Top.isReadonly %>
+						<% else %>
+							$UploadFieldFileButtons
+						<% end_if %>
+					</div>
+				</div>
+				<div class="ss-uploadfield-item-editform loading includeParent">
+					<iframe frameborder="0" src="$UploadFieldEditLink"></iframe>
+				</div>
+			</li>
+		<% end_loop %>
+	<% end_if %>
+</ul>
+<% if isDisabled || isReadonly %>
+	<% if isSaveable %>
+	<% else %>
+		<div class="ss-uploadfield-item">
+			<em><% _t('FileIFrameField.ATTACHONCESAVED2', 'Files can be attached once you have saved the record for the first time.') %></em>
+		</div>
+	<% end_if %>
+<% else %>
+	<div class="ss-uploadfield-item ss-uploadfield-addfile<% if $Items && $displayInput %> borderTop<% end_if %>" <% if not $displayInput %>style="display: none;"<% end_if %>>
+		<div class="ss-uploadfield-item-preview ss-uploadfield-dropzone ui-corner-all">
+				<% if $multiple %>
+					<% _t('UploadField.DROPFILES', 'drop files') %>
+				<% else %>
+					<% _t('UploadField.DROPFILE', 'drop a file') %>
+				<% end_if %>
+		</div>
+		<div class="ss-uploadfield-item-info">
+			<label class="ss-uploadfield-item-name"><b>
+				<% if $multiple %>
+					<% _t('UploadField.ATTACHFILES', 'Attach files') %>
+				<% else %>
+					<% _t('UploadField.ATTACHFILE', 'Attach a file') %>
+				<% end_if %>
+			</b></label>
+			<label class="ss-uploadfield-fromcomputer ss-ui-button ui-corner-all" title="<% _t('UploadField.FROMCOMPUTERINFO', 'Upload from your computer') %>" data-icon="drive-upload">
+				<% _t('UploadField.FROMCOMPUTER', 'From your computer') %>
+				<input id="$id" name="$getName" class="$extraClass ss-uploadfield-fromcomputer-fileinput" data-config="$configString" type="file"<% if $multiple %> multiple="multiple"<% end_if %> />
+			</label>
+			<button class="ss-uploadfield-fromfiles ss-ui-button ui-corner-all" title="<% _t('UploadField.FROMCOMPUTERINFO', 'Select from files') %>" data-icon="network-cloud"><% _t('UploadField.FROMFILES', 'From files') %></button>
+			<% if not $autoUpload %>
+				<button class="ss-uploadfield-startall ss-ui-button ui-corner-all" title="<% _t('UploadField.STARTALLINFO', 'Start all uploads') %>" data-icon="navigation"><% _t('UploadField.STARTALL', 'Start all') %></button>
+			<% end_if %>
+			<div class="clear"><!-- --></div>
+		</div>
+		<div class="clear"><!-- --></div>
+	</div>
+<% end_if %>