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| -rwxr-xr-x | examples/schema.scm | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/examples/schema.scm b/examples/schema.scm new file mode 100755 index 0000000..50cfd6a --- /dev/null +++ b/examples/schema.scm @@ -0,0 +1,70 @@ +#! /usr/bin/env guile +!# + +(use-modules (ice-9 getopt-long) + (transform triples) + (transform schema) + (transform special-forms) + (transform sql) + (transform table)) + +(define (call-with-genenetwork-database connection-settings proc) + (call-with-database "mysql" (string-join + (list (assq-ref connection-settings 'sql-username) + (assq-ref connection-settings 'sql-password) + (assq-ref connection-settings 'sql-database) + "tcp" + (assq-ref connection-settings 'sql-host) + (number->string + (assq-ref connection-settings 'sql-port))) + ":") + proc)) + +(define (transform-table-schema connection-settings db) + (let ((tables (tables connection-settings db))) + (for-each (lambda (table) + (let ((table-id (string->identifier + "table" + ;; We downcase table names in + ;; identifiers. So, we distinguish + ;; between the user and User tables. + (if (string=? (table-name table) "User") + "user2" + (table-name table))))) + (triple table-id 'rdf:type 'gn:sqlTable) + (triple table-id 'gn:name (table-name table)) + (triple table-id 'gn:hasSize (string->symbol (format #f "~a" (table-size table)))) + (for-each (lambda (column) + (let ((column-id (column-id (table-name table) + (column-name column)))) + (triple column-id 'rdf:type 'gn:sqlTableField) + (triple column-id 'gn:name (column-name column)) + (triple column-id 'gn:sqlFieldType (column-type column)) + (triple table-id 'gn:hasField column-id))) + (table-columns table)))) + tables))) + + +(let* ((option-spec + '((settings (single-char #\s) (value #t)) + (output (single-char #\o) (value #t)) + (documentation (single-char #\d) (value #t)))) + (options (getopt-long (command-line) option-spec)) + (settings (option-ref options 'settings #f)) + (output (option-ref options 'output #f)) + (documentation (option-ref options 'documentation #f)) + (%connection-settings (call-with-input-file settings read))) + (call-with-genenetwork-database + %connection-settings + (lambda (db) + (with-output-to-file output + (lambda () + (prefix "rdf:" "<http://www.w3.org/1999/02/22-rdf-syntax-ns#>") + (prefix "rdfs:" "<http://www.w3.org/2000/01/rdf-schema#>") + (prefix "gn:" "<http://genenetwork.org/id/>") + (prefix "gnc:" "<http://genenetwork.org/category/>") + (prefix "gnt:" "<http://genenetwork.org/term/>") + (prefix "xsd:" "<http://www.w3.org/2001/XMLSchema#>") + (prefix "owl:" "<http://www.w3.org/2002/07/owl#>") + (newline) + (transform-table-schema %connection-settings db)))))) |