working sql, nosql from sqlite, to mongoDB

Author: khz

pythononwheels/start/config.py

@@ -45,7 +45,7 @@
     "logformat"         :   logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s'),
     "id_pattern"        :   "[0-9\-a-zA-Z]+",       # the regex used to math IDs in URLs (uuid in this case)
     "list_separator"    :   ",",
-    "date_format"       :   "%Y-%m-%dT%H:%M:%S",
+    "date_format"       :   "%Y-%m-%d %H:%M:%S",
     "internal_fields"   :   ["created_at", "last_updated", "id"],  # these are hidden in the scaffolded views
     "default_rest_route":   "list",
     "list_separator"    :   " "
@@ -73,6 +73,8 @@
     },
     "mongodb" : {
         "dbname"    :   "testdb",  
+        "atlas"     :   False,
+        "atlas_conn_str" :  "mongodb+srv://<USER>:<PASSWORD>@cluster0-aetuw.mongodb.net/test", #this is just a sample
         "host"      :   "localhost",       
         "port"      :   27017,   
         "user"      :   None,

pythononwheels/start/models/mongodb/basemodel.py

@@ -211,7 +211,7 @@ def upsert(self):
         if self._id == None:
             #print("** insert **")
             # insert. so set created at            
-            self.created_at = datetime.datetime.utcnow()
+            self.created_at = datetime.datetime.utcnow().strftime(myapp["date_format"])
             self.last_updated = self.created_at
             ior = self.table.insert_one(self.to_dict())
             self._id = ior.inserted_id
@@ -220,6 +220,7 @@ def upsert(self):
             # update
             #print("** update **")
             #print(self.to_dict())
+            self.last_updated = datetime.datetime.utcnow().strftime(myapp["date_format"])
             ior = self.table.update_one({"_id" : self._id}, {"$set": self.to_dict()}, upsert=False )
             return ior
 

pythononwheels/start/models/tinydb/basemodel.py

@@ -156,7 +156,7 @@ def upsert(self):
             print("update by eid:" + str(self.eid))
             Q = Query()
             #self.last_updated = datetime.datetime.now()
-            self.last_updated = datetime.datetime.utcnow()
+            self.last_updated = datetime.datetime.utcnow().strftime(myapp["date_format"])
             self.table.update(self.to_dict(),Q.id==self.id)
         else:
             #first check if id is in db:
@@ -165,7 +165,7 @@ def upsert(self):
             if res:
                 #update. object is already in db
                 print("update by id:" + str(self.id))
-                self.last_updated = datetime.datetime.utcnow()
+                self.last_updated = datetime.datetime.utcnow().strftime(myapp["date_format"])
                 #self.last_updated = datetime.datetime.now()
                 self.eid = self.table.update(self.to_dict(),Q.id==self.id)
             else:
@@ -290,6 +290,8 @@ def find_by_id(self, id=None):
         """ return by id """
         Q = Query()
         res = self.table.search(Q.id == str(id))
+        if len(res) == 1:
+            return self.dict_result_to_object(res)
         return self._return_find(res)
 
     def find_random(self):
@@ -300,6 +302,8 @@ def find_random(self):
         randnum = random.randrange(len(res))
         #print(" random: " + str(randnum))
         res=[res[randnum]]
+        if len(res) == 1:
+            return self.dict_result_to_object(res)
         return self._return_find(res)
 
     def get_all(self):
@@ -320,6 +324,8 @@ def find_one(self, *criterion):
         print("criterion: " + str(criterion))
         try:
             res = self.table.get(*criterion)
+            if len(res) == 1:
+                return self.dict_result_to_object(res)
             return self._return_find(res)
         except Exception as e:
             raise e

pythononwheels/start/stubs/rest_handler_template.py

@@ -41,7 +41,7 @@ class {{handler_class_name}}(PowHandler):
     model=Model()
 
     # these fields will be hidden by scaffolded views:
-    show_list=["id", "title", "text"]
+    hide_list=["id", "created_at", "last_updated"]
 
     def show(self, id=None):
         m=Model()

pythononwheels/start/stubs/scaffold_edit_view.bs4

@@ -90,10 +90,8 @@
 
             {% for key in model.schema.keys() %}
                 {% if key in cfg.myapp["internal_fields"] %}
-                    {% set class_hidden = "hidden" %}
+                    <input type="hidden" name="{{key}}" id="{{key}}" value="{{data.get(key)}}" />
                 {% else %}
-                    {% set class_hidden = "" %}
-                {% end %}
                     {% set _type = elem.schema[key]["type"] %}
                     {% if  _type == "string" %}
                         {% if  "allowed" in model.schema[key].keys() %}
@@ -125,7 +123,7 @@
                                 <label for="{{key}}" class="col-2 col-form-label">{{key}}</label>
                                 <div class="col-10">
                                     <input  type="text" class="form-control" name="{{key}}" id="{{key}}" 
-                                        value="" />
+                                        value="{{elem.get(key)}}" />
                                 </div>
                             </div>    
                             {% end %}
@@ -192,6 +190,7 @@
                             </div>
                         </div>    
                     {% end %}
+                {% end %}
             {% end %} 
 
 

pythononwheels/start/stubs/scaffold_list_view.bs4

@@ -66,7 +66,9 @@
             <thead class="thead-inverse">
                 <tr>
                     {% for key in model.schema.keys() %}
-                        <th>{{key}}</th>
+                        {% if key not in hide_list %}
+                            <th>{{key}}</th>
+                        {% end %}
                     {% end %}
                     <th colspan="3">Actions:</th>
                 </tr>
@@ -77,7 +79,9 @@
                 {% for elem in data %}
                     <tr id="{{elem.get("id")}}">
                     {% for key in elem.schema.keys() %}
-                        <td>{{getattr(elem, key)}}</td>
+                        {% if key not in hide_list %}
+                            <td>{{getattr(elem, key)}}</td>
+                        {% end %}  
                     {% end %}
                     <td>                           
                         <span class="glyphicon glyphicon-star" aria-hidden="true"></span> 

pythononwheels/start/stubs/scaffold_new_view.bs4

@@ -158,6 +158,7 @@
                                 </div>
                             </div>    
                         {% end %}
+                    {% end %}
                 {% end %}
             {% end %}
 

pythononwheels/start/stubs/scaffold_page_view.bs4

@@ -66,7 +66,7 @@
                             <thead class="thead-inverse">
                                 <tr>
                                     {% for key in model.schema.keys() %}
-                                        {% if key in show_list %}
+                                        {% if key not in hide_list %}
                                             <th>{{key}}</th>
                                         {% end %}
                                     {% end %}
@@ -78,7 +78,7 @@
                                 {% for elem in data %}
                                     <tr id="{{elem.get("id")}}">
                                     {% for key in elem.schema.keys() %}
-                                        {% if key in show_list %}
+                                        {% if key not in hide_list %}
                                             <td>{{getattr(elem, key)}}</td>
                                         {% end %}
                                     {% end %}

pythononwheels/start/stubs/scaffold_show_view.bs4

@@ -24,13 +24,17 @@
         <hr>
         <h2>Related Data Objects:</h2>
         <table class="table table-bordered">
-            {% for rel in model.get_relations() %}
-                {% for idx, val in enumerate(getattr(data, rel)) %}
-                <tr>
-                    <td><b><a href="/{{rel}}/{{getattr(val, "id")}}">{{idx}}</a></b></td>
-                    <td>{{val}}</td>
-                </tr>
+            {% try %}
+                {% for rel in model.get_relations() %}
+                    {% for idx, val in enumerate(getattr(data, rel)) %}
+                    <tr>
+                        <td><b><a href="/{{rel}}/{{getattr(val, "id")}}">{{idx}}</a></b></td>
+                        <td>{{val}}</td>
+                    </tr>
+                    {% end %}
                 {% end %}
+            {% except %}
+                No relations for this model
             {% end %}
         </table>
         <hr>

pythononwheels/start/stubs/sql_model_template.py

@@ -23,19 +23,27 @@ class {{model_class_name}}(Base):
     # raw sqlalchemy column __init__ parameters.
     #
     schema = {        
-        'title': {'type': 'string', 'maxlength' : 35},
-        'text': {'type': 'string'},
-        'likes': {
-            'type': 'integer',
-             "sql" : {          # sql attributes are handed raw to sqlalchemy Column
-                "primary_key"   : False,
-                "default"       : "123",
-                "unique"        : False, 
-                "nullable"      : False 
-            }
-        }
+        'title' :   {'type': 'string', 'maxlength' : 35},
+        'text'  :   {'type': 'string'},
+        "votes" :   { "type" : "integer", "default" : 0 }  
     }
 
+    # you can also use special sqlalchemy attributes which are handed raw ro sqlalchemy
+    # like this:
+    # schema = {        
+    #     'title': {'type': 'string', 'maxlength' : 35},
+    #     'text': {'type': 'string'},
+    #     'likes': {
+    #         'type': 'integer',
+    #          "sql" : {          # sql attributes are handed raw to sqlalchemy Column
+    #             "primary_key"   : False,
+    #             "default"       : "123",
+    #             "unique"        : False, 
+    #             "nullable"      : False 
+    #         }
+    #     }
+    # }
+
 
     #__table_args__ = { "autoload" : True  }