Add single-quoted literals

ckanext/composite_search/plugin/default.py

@@ -9,6 +9,19 @@
 from ..interfaces import ICompositeSearch
 from ..utils import SearchParam
 
+CONFIG_LITERAL_QUOTES = "ckanext.composite_search.literal.quotes"
+DEFAULT_LITERAL_QUOTES = "double"
+
+def single_quote_solr_literal(t: str) -> str:
+    escaped = t.replace("'", r"\'")
+    return f"'{escaped}'"
+
+
+_literals = {
+    "single": single_quote_solr_literal,
+    "double": solr_literal,
+}
+
 
 class DefaultSearchPlugin(plugins.SingletonPlugin):
     plugins.implements(ICompositeSearch)
@@ -19,8 +32,11 @@ def before_composite_search(
         self, search_params: dict[str, Any], params: list[SearchParam]
     ) -> tuple[dict[str, Any], list[SearchParam]]:
         query = ''
+
+        literal = _literals.get(tk.config.get(CONFIG_LITERAL_QUOTES, DEFAULT_LITERAL_QUOTES), _literals[DEFAULT_LITERAL_QUOTES])
+
         for param in reversed(params):
-            value = ' '.join([solr_literal(word) for word in param.value.split()])
+            value = ' '.join([literal(word) for word in param.value.split()])
             if not value:
                 continue
             sign = '-' if tk.asbool(param.negation) else '+'

setup.py

@@ -16,7 +16,7 @@
     # Versions should comply with PEP440.  For a discussion on single-sourcing
     # the version across setup.py and the project code, see
     # http://packaging.python.org/en/latest/tutorial.html#version
-    version='0.2.5',
+    version='0.2.6',
 
     description='''''',
     long_description=long_description,