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CONTENTdm Extensions Terry Reese 541-737-6384 terry.reese@oregonstate.edu Slides: http://oregonstate.edu/~reeset/contentdm/presentation/2004_05_09.ppt Understanding the rules You have to work within CONTENTdm’s application framework, i.e.:

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contentdm extensions

CONTENTdm Extensions

Terry Reese

541-737-6384

terry.reese@oregonstate.edu

Slides: http://oregonstate.edu/~reeset/contentdm/presentation/2004_05_09.ppt

understanding the rules
Understanding the rules
  • You have to work within CONTENTdm’s application framework, i.e.:
    • CONTENTdm’s indexes can only be easily accessed via an .exe in the CGI-BIN so the OAI is your friend
    • That nearly all data is stored in plain text files and are accessible via http/file level access
      • Examples:
        • Project Configuration Files: http://digitalcollections.library.oregonstate.edu/archives/index/etc/config.txt
        • Vocab. Files: http://digitalcollections.library.oregonstate.edu/archives/index/text_search/voc.creato
    • In general, all data not within a results grid can be easily customized using javascript
retrieving data oai the contentdm api
Retrieving Data: OAI & the CONTENTdm API
  • Two primary methods for accessing collection data dynamically within CONTENTdm:
    • API
      • Example: queryget.exe
      • Usage Example: http://digitalcollections.library.oregonstate.edu/cgi-bin/queryget.exe?CISOROOT0=/archives&CISOROOT1=/fakecollection&CISOOP=all&CISOMAX=17000000&CISOSTART=1&CISOSORTBY=title&subjec=memorial+union
retrieving data oai the contentdm api4
Retrieving Data: OAI & the CONTENTdm API
  • Two primary methods for accessing collection data dynamically within CONTENTdm:
    • OAI
      • Retrieves all Dublin Core tagged Fields
      • Retrieves data as simple Dublin Core
      • Example:
        • http://digitalcollections.library.oregonstate.edu/cgi-bin/oai.exe?verb=ListRecords&metadataPrefix=oai_dc&set=archives
examples e commerce extension
Examples: E-Commerce Extension
  • E-commerce extension:
    • What it does:
      • Allows institutions to implement a shopping cart feature with CONTENTdm
      • Provides patrons with a printout receipt of their orders
      • Provides staff with an html encoded email with links into the CONTENTdm collection to eliminate confusion regarding staff requests
      • Provides a method to potentially allow online billing of documents
        • Method will vary from institution to institution based on their business offices rules and practices
examples e commerce extension6
Examples: E-Commerce Extension
  • E-commerce extension:
    • How it works:
      • Modifications to the global.js script to:
        • Insert shopping cart buttons in the item & results windows
        • Add Cookie parsing and Packing functions
          • The script uses the same cookie as the My Favorites functionality, allowing the Shopping Cart to import data from the My Favorites list.
      • Creation of two php scripts:
        • mycart.php (handles the data retrieval submission form generation)
        • request.php (generates & emails this request – also provides the fork point for online payment if available)
examples e commerce extension7
Examples: E-Commerce Extension
  • E-Commerce extension:
    • Data flow:
      • Patron clicks on shopping cart link to pack CISOPTR into the cookie.
      • Patron clicks on “order prints” link to generate the request form.
      • Request form (mycart.php) generates an OAI request for each item and extracts the necessary data required to generate the print/email request.
      • Patron enters data & submits data – receipt is generated and user is given one last opportunity to verify data.
      • Submits data – Email is sent to staff which fill the request.
examples e commerce extension8
Examples: E-Commerce Extension
  • E-Commerce extension:
    • Example (Demo here):
      • http://digitalcollections.library.oregonstate.edu/bracero/
examples rss generator
Examples: RSS Generator
  • RSS Feed Generator
    • Probably the most widely used CONTENTdm extension in our library.
    • Used by:
      • Librarians to track individual collection or topical growth within collections.
      • Managers (like myself) as a review tool to keep track of items as they change and check resulting metadata.
examples rss generator10
Examples: RSS Generator
  • RSS Feed Generator
    • How it works:
      • Uses OAI for data retrieval
        • OAI is called using date limiters that can be specified by the user
      • SAXON for XSLT parsing
        • This allows the OAI to be pre-processed to Qualified Dublin Core and then processed against a users processing instructions. Using XSLT, the user can:
          • Query items with specific keywords
          • Query items with specific creators/titles
          • Query items with a combination of criteria – XSLT step simply allows script to produce queries using a level of granularity that isn’t available in OAI.
      • RSS Feed reader to display results
examples rss generator11
Examples: RSS Generator
  • RSS Feed Generator
    • Example:
      • Within Bloglines
        • Example
      • As a simple link
        • http://fluffy.library.oregonstate.edu/cgi-bin/harvester/harvester.pl?collection_server=digitalcollections.library.oregonstate.edu&collection_project=all&collection_options=rss&collection_wrapper=1&rss_time=14
things i d like to see or am working on
Things I’d like to see or am working on
  • An Open-Source Acquisitions client built in Java (so it can be run on Linux and customized for specific workflows
  • Open Source Multi-Site server solution
  • True OBDC driver to access CONTENTdm database natively within scripts
  • More folks developing and sharing their development.
going further embedding rights management
Going Further: Embedding Rights Management
  • Rights management example – how it works:
    • Generate a wrapper .exe for the CONTENTdm display exe.
    • Embed rights management metadata into individual items
    • Have the wrapper pre-process requests on the server, pulling data from CONTENTdm using the OAI.

Example screenshots:

      • Metadata (http://oregonstate.edu/~reeset/contentdm/screens/rights1.png)
      • Display (http://oregonstate.edu/~reeset/contentdm/screens/rights2.png)

For more information, feel free to contact me.