| 1 | from ..adapters.couchdb import CouchDB |
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| 2 | from .base import NoSQLDialect |
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| 3 | from . import dialects |
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| 4 | |
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| 5 | |
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| 6 | @dialects.register_for(CouchDB) |
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| 7 | class CouchDBDialect(NoSQLDialect): |
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| 8 | def _and(self, first, second, query_env={}): |
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| 9 | return "(%s && %s)" % ( |
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| 10 | self.expand(first, query_env=query_env), |
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| 11 | self.expand(second, query_env=query_env), |
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| 12 | ) |
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| 13 | |
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| 14 | def _or(self, first, second, query_env={}): |
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| 15 | return "(%s || %s)" % ( |
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| 16 | self.expand(first, query_env=query_env), |
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| 17 | self.expand(second, query_env=query_env), |
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| 18 | ) |
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| 19 | |
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| 20 | def eq(self, first, second=None, query_env={}): |
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| 21 | if second is None: |
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| 22 | return "(%s == null)" % self.expand(first, query_env=query_env) |
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| 23 | return "(%s == %s)" % ( |
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| 24 | self.expand(first, query_env=query_env), |
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| 25 | self.expand(second, first.type, query_env=query_env), |
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| 26 | ) |
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| 27 | |
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| 28 | def ne(self, first, second=None, query_env={}): |
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| 29 | if second is None: |
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| 30 | return "(%s != null)" % self.expand(first, query_env=query_env) |
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| 31 | return "(%s != %s)" % ( |
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| 32 | self.expand(first, query_env=query_env), |
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| 33 | self.expand(second, first.type, query_env=query_env), |
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| 34 | ) |
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| 35 | |
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| 36 | def comma(self, first, second, query_env={}): |
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| 37 | return "%s + %s" % ( |
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| 38 | self.expand(first, query_env=query_env), |
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| 39 | self.expand(second, query_env=query_env), |
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| 40 | ) |
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