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- Mediaflux intro
- Import data with metadata
- Query data based on metadata searches
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Material
Mediaflux (ref) is the underlying storage platform that pshell communicates with. It is out of scope to discuss the full capabilities of Mediaflux, but, a few relevant items will be mentioned.
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asset.get :id ASSET-ID
asset.get :id "path=FULL-PATH-TO-FILE" |
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asset.query :where "LOGICAL-EXPRESSION"
asset.query :where "namespace='/projects/Demo'"
asset.query :where "namespace>='/projects/Demo' and name='*.jpg'"
asset.query :where "namespace>='/projects/Data Team/sean' and (name='*.JPG' or name='*.PNG')" |
Simple actions on the results
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asset.query :where "namespace>='/projects/Demo' and name='*.jpg'" :action get-value :xpath -ename name name |
Exercises
Exercise 1 - upload a (supplied?) file and then inspect the metadata in the system.
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put IMG_0222.PNG asset.get :id "path=/projects/Data Team/sean/IMG_0222.PNG" asset = None { version=4 id=1377760 vid=74319092 } type = image/png namespace = /projects/Data Team/sean path = /projects/Data Team/sean/IMG_0222.PNG name = IMG_0222.PNG meta = None { stime=74319092 } etc |
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