Source Code for Module tools.python_curry

 1  # TODO: This is the start of a tool that generates the .sql portion of 
 2  #       model descriptions from the raw python model description code 
 3  # 
 4  # params =[(name, type) ... ] 
 5   
 6  """ 
 7  This module contains a function to build curry function. 
 8  """ 
 9   
10 -def build_curry_function(curry_fname, mid, fname, modulename, path, params, return_type): 
11      """ 
12      This function generates the .sql portion of model descriptions from the raw python model 
13      description code 
14   
15      @type curry_fname: string 
16      @param curry_fname: curry function name 
17      @type mid: number 
18      @param mid: mid 
19      @type fname: string 
20      @param fname: function name 
21      @type modulename: string 
22      @param modulename: name of the module 
23      @type path: string 
24      @param path: path to the module 
25      @type params: vector 
26      @param params: parameters of the function 
27      @type return_type: string 
28      @param return_type: return type of the SQL function 
29   
30      @rtype: string 
31      @return: SQL function 
32      """ 
33      param_types = [ t for (p,t) in params ] 
34      param_names = [ p for (p,t) in params ] 
35      param_full  = [ (p + " " + t) for (p,t) in params] 
36       
37      param_type_str = ','.join(param_types) 
38      param_call_str = ','.join(param_names) 
39      param_full_str = ','.join(param_full) 
40       
41      f= "" 
42      f+= "DROP FUNCTION IF EXISTS " + curry_fname + "(" + param_type_str + ") CASCADE;\n" 
43      f+= "CREATE FUNCTION " + curry_fname + "(" + param_full_str + ")\n" 
44      f+= "\tRETURNS " + return_type +"\n" 
45      f+= "AS $$\n" 
46      f+= "import sys\n" 
47      f+= "sys.append.path(path)\n" 
48      f+= "import " + modulename + "\n" 
49      f+= "model = GD[" + str(mid) + "]\n" 
50      f+= "return "+ modulename + "." + fname + "(" + param_call_str + ")\n" 
51      f+= "$$ LANGUAGE plpythonu;" 
52      return f 
53