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object --+ | cMatchProvider --+ | cMatchProvider_SQL2
Match provider which searches matches in possibly several database tables. queries: - a list of unicode strings - each string is a query - each string must contain: "... WHERE <column> %(fragment_condition)s ..." - each string can contain in the where clause: "... %(<ctxt_key1>)s ..." - each query must return (data, list_label, field_label) context definitions to be used in the queries, example: {'ctxt_key1': {'where_part': 'AND country = %(country)s', 'placeholder': 'country'}} client code using .set_context() must use the 'placeholder': <phrasewheel>/<match provider>.set_context('country', 'Germany') full example query: query = u" " " SELECT DISTINCT ON (list_label) pk_encounter AS data, to_char(started, 'YYYY Mon DD (HH24:MI)') || ': ' || l10n_type || ' [#' || pk_encounter || ']' AS list_label, to_char(started, 'YYYY Mon DD') || ': ' || l10n_type AS field_label FROM clin.v_pat_encounters WHERE ( l10n_type %(fragment_condition)s OR type %(fragment_condition)s ) %(ctxt_patient)s ORDER BY list_label LIMIT 30 " " " context = {'ctxt_patient': { 'where_part': u'AND pk_patient = %(PLACEHOLDER)s', 'placeholder': u'PLACEHOLDER' }} self.mp = gmMatchProvider.cMatchProvider_SQL2(queries = query, context = context) self.set_context(context = 'PLACEHOLDER', val = '<THE VALUE>') _SQL_data2match: SQL to retrieve a match by, say, primary key wherein the only keyword argument is 'pk'
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Method Details |
x.__init__(...) initializes x; see x.__class__.__doc__ for signature
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Return all items.
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Return matches for aFragment at start of phrases.
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Return matches for aFragment as a true substring.
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Return matches for aFragment at start of words inside phrases.
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