Smarter research

search.py

@@ -1,13 +1,17 @@
 #!/usr/bin/env python3
 
 # You can test it with:
-# curl --request POST  --data name=foobar http://localhost:4000
+# curl --request POST  --data string=foobar\&what=language http://localhost:4000
 
 import wsgiref.simple_server as server
 import urllib.parse
 
+# PostgreSQL interface
 import psycopg2
 
+# HTML templates http://www.yattag.org/
+from yattag import Doc
+
 PORT = 4000
 
 def pack(start_response, status, data):
@@ -36,23 +40,36 @@ def application(environ, start_response):
             status = "400 Invalid request"
             output = "Missing \"%s\" in request\r\n" % mandatory
             return pack(start_response, status, output)
-    # TODO case-insensitive (scripts are capitalized)
     if form["what"] == "language":
         sql = "SELECT * FROM Languages WHERE code = %s"
+        term = form["string"].lower()
     elif form["what"] == "script":
-        sql = "SELECT * FROM Scripts WHERE code = %s" 
+        sql = "SELECT * FROM Scripts WHERE code = %s"
+        term = form["string"].capitalize()
     else:
         status = "400 Invalid request"
         output = "Unknown search category \"%s\"\r\n" % form["what"]
         return pack(start_response, status, output)
-    # TODO junctions
-    # TODO search in descriptions
-    cursor.execute(sql, (form["string"], ))
+    cursor.execute(sql, (term, ))
     mytuple = cursor.fetchone()
     status = "200 OK"
-    output = "TODO %s\r\n" % str(mytuple) # TODO display comments, preferredscript, addition date etc
-    # TODO HTML with a templating engine?
-    # TODO link to mulhtml ?
+    if mytuple is not None:        
+        output = "TODO %s\r\n" % str(mytuple) # TODO display comments, preferredscript, addition date etc Or a redirect to mulhtml's result?
+    else:
+        if form["what"] == "language":
+            sql = "SELECT * FROM Languages,Descriptions_Languages,Descriptions WHERE Descriptions_Languages.description = Descriptions.id AND Descriptions_Languages.lang = Languages.code AND position(%s in lower(Descriptions.description)) > 0;" 
+        elif form["what"] == "script":
+            raise "TODO not implemented"
+        cursor.execute(sql, (term, ))
+        found = False
+        output = ""
+        for tuple in cursor.fetchall():
+            output += "TODO %s\r\n" % str(tuple)
+            found = True
+        if not found:
+            output = "\"%s\" not found\r\n" % term
+    # TODO HTML with a templating engine? Yattag, probably
+    # TODO link to mulhtml results?
     return pack(start_response, status, output)
 
 if __name__ == "__main__":

search.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <page title="Search TODO">
   <p>TODO</p>
-  <form action="http://localhost:4000/" method="POST" name="Search">
+  <form action="http://localhost:4000/" method="post">
     <p>Name: <input type="text" name="string"/></p>
     <p>Search in: <select name="what">
      <option value="language">Languages</option>