Views: Added argument to not automatically create default columns in

typed views, a function to delete a view and fixed view history bug

python/obitools3/dms/capi/obiview.pxd

@@ -60,7 +60,7 @@ cdef extern from "obiview.h" nogil:
     ctypedef Obiview_t* Obiview_p
 
 
-    Obiview_p obi_new_view_nuc_seqs(OBIDMS_p dms, const_char_p view_name, Obiview_p view_to_clone, index_t* line_selection, const_char_p comments, bint quality_column)
+    Obiview_p obi_new_view_nuc_seqs(OBIDMS_p dms, const_char_p view_name, Obiview_p view_to_clone, index_t* line_selection, const_char_p comments, bint quality_column, bint create_default_columns)
 
     Obiview_p obi_new_view(OBIDMS_p dms, const_char_p view_name, Obiview_p view_to_clone, index_t* line_selection, const_char_p comments)
     
@@ -113,6 +113,8 @@ cdef extern from "obiview.h" nogil:
 
     int obi_rollback_view(Obiview_p view)
 
+    int obi_delete_view(OBIDMS_p dms, const char* view_name)
+
 
     # OBI_INT
     int obi_set_int_with_elt_name_and_col_p_in_view(Obiview_p view,

python/obitools3/dms/view/typed_view/view_NUC_SEQS.pyx

@@ -43,7 +43,8 @@ cdef class View_NUC_SEQS(View):
                                                NULL, 
                                                NULL, 
                                                comments_b,
-                                               quality)
+                                               quality,
+                                               True)
         
         if pointer == NULL :
             message = "Error : Cannot create view %s" % bytes2str(view_name_b)

python/obitools3/dms/view/view.pyx

@@ -15,7 +15,8 @@ from ..capi.obiview cimport Alias_column_pair_p, \
                             obi_view_get_pointer_on_column_in_view, \
                             obi_view_delete_column, \
                             obi_view_create_column_alias, \
-                            obi_view_write_comments
+                            obi_view_write_comments, \
+                            obi_delete_view
                            
 from ..capi.obidmscolumn cimport OBIDMS_column_p
 from ..capi.obidms cimport OBIDMS_p
@@ -66,7 +67,13 @@ cdef class View(OBIWrapper) :
     def import_view(object dms_1, object dms_2, object view_name_1, object view_name_2):
         if obi_import_view(tobytes(dms_1), tobytes(dms_2), tobytes(view_name_1), tobytes(view_name_2)) < 0 :
             raise Exception("Error importing a view")
-    
+
+
+    @staticmethod
+    def delete_view(DMS dms, object view_name):
+        if (obi_delete_view(dms.pointer(), tobytes(view_name)) < 0):
+            raise Exception("Error deleting a view")
+        
     
     @staticmethod
     def new(DMS dms, 
@@ -533,6 +540,8 @@ cdef class View(OBIWrapper) :
                         for i in range(len(element.comments[b"input_dms_name"])) :
                             if element.comments[b"input_dms_name"][i] == element.dms.name and b"/" not in element.comments[b"input_view_name"][i]:  # Same DMS and not a special element like a taxonomy
                                 top_level.append(element.dms[element.comments[b"input_view_name"][i]])
+                            else:
+                                top_level.append(None)
                     else:
                         top_level.append(None)
                     level_dict[tuple(element.comments[b"input_str"])] = {}