Update web/core/utils.py

web/core/utils.py

@@ -7,7 +7,56 @@ from typing import Dict, Any
 from django.db import transaction
 from core.models import Entry
 
+# --- Search helpers restored -------------------------------------------------
+from typing import List
 
+def terms(q: str) -> List[str]:
+    """
+    Split a query string into search terms.
+    - Quoted phrases are kept together:  `"good shepherd"`
+    - Unquoted text splits on whitespace.
+    - Empty/whitespace-only input returns [].
+    """
+    if not q:
+        return []
+    # capture "quoted phrases" OR bare tokens
+    rx = re.compile(r'"([^"]+)"|(\S+)')
+    out = []
+    for m in rx.finditer(q):
+        phrase = m.group(1) if m.group(1) is not None else m.group(2)
+        t = (phrase or "").strip()
+        if t:
+            out.append(t)
+    return out
+
+def has_wildcards(s: str) -> bool:
+    """
+    True if user supplied * or ? wildcards (FileMaker-style).
+    We also treat SQL wildcards % and _ as wildcards if present.
+    """
+    if not s:
+        return False
+    return any(ch in s for ch in ("*", "?", "%", "_"))
+
+def wildcard_to_regex(s: str) -> str:
+    """
+    Convert * and ? to a case-insensitive regex fragment suitable for Django's iregex.
+    - Escapes regex meta first, then replaces \* -> .*  and \? -> .
+    - Wraps with '.*' so it matches anywhere (like icontains).
+    Example: 'lov* you?' -> '(?i).*lov.* you..*'
+    (The view should use iregex so (?i) or case-insensitive flag applies.)
+    """
+    if s is None:
+        s = ""
+    # Escape regex specials, then un-escape our wildcards into regex
+    pat = re.escape(s)
+    pat = pat.replace(r"\*", ".*").replace(r"\?", ".")
+    # Match anywhere by default
+    pat = f".*{pat}.*"
+    # collapse consecutive ".*.*"
+    pat = re.sub(r"(?:\.\*){2,}", ".*", pat)
+    return pat
+# ----------------------------------------------------------------------------- 
 # ==============================
 # Helpers
 # ==============================