mirror of
https://github.com/silverstripe/silverstripe-dms
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102 lines
2.8 KiB
Markdown
102 lines
2.8 KiB
Markdown
# Document Management Module (DMS)
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## Overview
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The module adds a new `DMSDocument` model which allows management
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of large amounts of files, and their relations to pages.
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In contrast to the `File` model built into SilverStripe core,
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it aims to wrap storage and access concerns in a generic API,
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which allows more fine-grained control over how the documents are
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managed and exposed through the website.
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Features:
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* Relation of documents to pages
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* Management and upload of documents within a page context in the CMS
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* Metadata management through the powerful `GridField` and `UploadField` core APIs
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* Configurable tags for documents
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* Download via SilverStripe controller (rather than filesystem URLs)
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* Access control based on PHP logic, and page relations
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* Replacement of existing files
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## Documents on the Filesystem
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While the DMS architecture allows for remote storage of files,
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the default implementation (the `DMS` class) stores them locally.
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Relations to pages and tags are persisted as many-many relationships
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through the SilverStripe ORM.
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File locations in this implementation are structured into
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subfolders, in order to avoid exceeding filesystem limits.
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The file name is a composite based on its database ID
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and the original file name. The exact location shouldn't
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be relied on by custom logic, but rather retrieved through
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the API (`DMSDocument->getDownloadLink()`).
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Example:
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dms-assets/
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0/
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1234~myfile.pdf
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1/
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2345~myotherfile.pdf
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### Requirements
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* PHP 5.3 with the "fileinfo" module (or alternatively the "whereis" and "file" Unix commands)
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### Configuration
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The file location is set via the `DMS::$dmsFolder` static, and points to a location in the webroot.
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### Usage
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#### Create Documents
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Create by relative path:
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$dms = DMS::getDMSInstance();
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$doc = $dms->storeDocument('assets/myfile.pdf');
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Create from an existing `File` record:
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$dms = DMS::getDMSInstance();
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$file = File::get()->byID(99);
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$doc = $dms->storeDocument($file);
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Note: Both operations copy the existing file.
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#### Download Documents
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$dms = DMS::getDMSInstance();
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$docs = $dms->getByTag('priority', 'important')->First();
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$link = $doc->getDownloadLink();
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#### Manage Page Relations
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// Find documents by page
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$dms = DMS::getDMSInstance();
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$page = SiteTree::get()->filter('URLSegment', 'home')->First();
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$docs = $dms->getByPage($page);
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// Add documents to page
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#### Manage Tags
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// Find documents by tag
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$dms = DMS::getDMSInstance();
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$docs = $dms->getByTag('priority', 'important');
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// Add tag to existing document
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$doc = Document::get()->byID(99);
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$doc->addTag('priority', 'low');
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// Supports multiple values for tags
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$doc->addTag('category', 'keyboard');
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$doc->addTag('category', 'input device');
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// Removing tags is abstracted as well
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$doc->removeTag('category', 'keyboard');
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$doc->removeTag('category', 'input device');
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$doc->removeAllTags(); |