Merge pull request #49 from coecms/info

Add "Info" view

Author: ScottWales

clef/model.py

@@ -286,3 +286,38 @@ class C6Dataset(Base):
 
     #:
     table_id = Column('table_id', Text)
+
+
+class Info(Base):
+    """
+    General information about a dataset file
+
+    This is a database view, its columns shouldn't be used for searching as
+    they are large and not indexed.
+    """
+    __tablename__ = 'info_attributes'
+
+    file_id = Column(UUID,
+                     ForeignKey('metadata.md_hash'),
+                     ForeignKey('checksums.ch_hash'),
+                     ForeignKey('esgf_paths.file_id'),
+                     primary_key=True)
+
+    #:
+    variant_info = Column(Text)
+    #:
+    source = Column(Text)
+    #:
+    parent_experiment_id = Column(Text)
+    #:
+    further_info_url = Column(Text)
+    #:
+    contact = Column(Text)
+    #:
+    title = Column(Text)
+    #:
+    description = Column(Text)
+    #:
+    license = Column(Text)
+    #:
+    tracking_id = Column(Text)

db/tables.sql

@@ -359,3 +359,21 @@ CREATE MATERIALIZED VIEW IF NOT EXISTS extended_metadata AS
     NATURAL LEFT JOIN extended_metadata_manual AS m;
 GRANT SELECT ON extended_metadata TO PUBLIC;
 CREATE UNIQUE INDEX IF NOT EXISTS extended_metadata_file_id ON extended_metadata(file_id);
+
+/*
+ * Information-only attributes that are useful to know but won't be searched on
+ */
+CREATE OR REPLACE VIEW info_attributes AS
+    SELECT
+    md_hash as file_id,
+    md_json->'attributes'->>'variant_info' as variant_info,
+    md_json->'attributes'->>'source' as source,
+    md_json->'attributes'->>'parent_experiment_id' as parent_experiment_id,
+    md_json->'attributes'->>'further_info_url' as further_info_url,
+    md_json->'attributes'->>'contact' as contact,
+    md_json->'attributes'->>'title' as title,
+    md_json->'attributes'->>'description' as description,
+    md_json->'attributes'->>'license' as license,
+    md_json->'attributes'->>'tracking_id' as tracking_id
+    FROM metadata
+    WHERE md_type = 'netcdf';