new functions in the OBIDMS_column class to raise NotImplementedError

exceptions and to get the creation date of a column

python/obitools3/obidms/_obidms.pxd

@@ -4,7 +4,9 @@ from .capi.obidms       cimport OBIDMS_p
 from .capi.obidmscolumn cimport OBIDMS_column_p
 from .capi.obitypes     cimport obiversion_t, OBIType_t
 
+
 cdef class OBIDMS_column
+
             
 cdef class OBIDMS:
 
@@ -33,6 +35,10 @@ cdef class OBIDMS_column:
     cdef str column_name
 
     cpdef object get_item(self, size_t line_nb, str element_name)
+#    cpdef        set_item(self, size_t line_nb, str element_name, object value)    TODO
     cpdef list   get_elements_names(self)
     cpdef str    get_data_type(self)
     cpdef size_t get_nb_lines_used(self)
+    cpdef str    get_creation_date(self)
+    cpdef        close(self)
+

python/obitools3/obidms/_obidms.pyx

@@ -10,6 +10,8 @@ from .capi.obidmscolumn cimport obi_column_get_data_type_from_name, \
                                 obi_column_get_line_count_from_name, \
                                 obi_column_get_nb_lines_used, \
                                 obi_column_get_elements_names, \
+                                obi_column_get_formatted_creation_date, \
+                                obi_column_get_formatted_creation_date_from_name, \
                                 obi_create_column, \
                                 obi_clone_column, \
                                 obi_open_column, \
@@ -63,12 +65,17 @@ cdef class OBIDMS :
         cdef str column_name
         cdef bytes column_name_b
         cdef str data_type
+        cdef str creation_date
         cdef obiversion_t latest_version
         cdef size_t line_count
         
         p = Path(self.dms_name+'.obidms')
 
-        print("{:<25} {:<25} {:<25} {:<25}".format('-Column name-','-Data type-','-Latest version number-', '-Line count of latest version-'))
+        print("{:<25} {:<25} {:<25} {:<25}".format('-Column name-', 
+                                                   '-Data type-', 
+                                                   '-Latest version number-', 
+                                                   '-Line count of latest version-')) 
+                                                   #'-Creation date of latest version-'))
         for entry in p.iterdir():
             if entry.suffix == ".obicol":
                 column_name = entry.stem
@@ -77,13 +84,19 @@ cdef class OBIDMS :
                 data_type = bytes2str(name_data_type(obi_column_get_data_type_from_name(self.pointer, column_name_b)))
                 latest_version = obi_column_get_latest_version_from_name(self.pointer, column_name_b)
                 line_count = obi_column_get_line_count_from_name(self.pointer, column_name_b)
+
+#                creation_date = bytes2str(obi_column_get_formatted_creation_date_from_name(self.pointer, column_name_b))    #TODO
+#                print(creation_date)
+
                 dms[column_name]['data_type'] = data_type
                 dms[column_name]['latest_version'] = latest_version
                 dms[column_name]['line_count'] = line_count
+#                dms[column_name]['creation_date'] = creation_date
                 print("{:<25} {:<25} {:<25} {:<25}".format(column_name, data_type, latest_version, line_count))
 
         return dms
      
+     
     cpdef OBIDMS_column open_column(self,
                                     str column_name,
                                     bint create=False, 
@@ -109,6 +122,9 @@ cdef class OBIDMS :
                 data_type = obi_column_get_data_type_from_name(self.pointer, column_name_b)
 
         # Open the column with the right subclass depending on the data type and the mode (read-only or writable)
+        
+        # TODO : check that data type is the same as previous version if it exists?
+        
         if data_type == 1 :
             if (create or clone) :
                 column = OBIDMS_column_int_writable(self, column_name, 
@@ -266,18 +282,24 @@ cdef class OBIDMS_column :
 
     cpdef object get_item(self, size_t line_nb, str element_name):
         raise NotImplementedError
+
+#    cpdef set_item(self, size_t line_nb, str element_name, object value):    TODO
+#        raise NotImplementedError
     
     cpdef list get_elements_names(self):
         cdef bytes elements_names
         elements_names = obi_column_get_elements_names(self.pointer)
         return (bytes2str(elements_names)).split(';')
-
              
     cpdef str get_data_type(self):
         return self.data_type
-
     
     cpdef size_t get_nb_lines_used(self):
         return obi_column_get_nb_lines_used(self.pointer)
-        
+    
+    cpdef str get_creation_date(self):
+        return bytes2str(obi_column_get_formatted_creation_date(self.pointer))
+    
+    cpdef close(self):
+        raise NotImplementedError
    

python/obitools3/obidms/capi/obidmscolumn.pxd

@@ -56,6 +56,11 @@ cdef extern from "obidmscolumn.h" nogil:
     size_t obi_column_get_line_count_from_name(OBIDMS_p dms, 
                                                const_char_p column_name)
     
+    char* obi_column_get_formatted_creation_date(OBIDMS_column_p column)
+    
+    char* obi_column_get_formatted_creation_date_from_name(OBIDMS_p dms, 
+                                                         const_char_p column_name)
+    
     
 cdef extern from "obidmscolumn_int.h" nogil:
     int obi_column_set_obiint_with_elt_name(OBIDMS_column_p column,