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python_wiki:django_api [2018/08/03 16:48] billdozor created |
python_wiki:django_api [2019/05/25 23:50] (current) |
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Interacting with the Django Python API. | Interacting with the Django Python API. | ||
+ | |||
+ | API Reference: https:// | ||
**Checklist** | **Checklist** | ||
Line 11: | Line 13: | ||
---- | ---- | ||
- | ====== | + | ====== |
- | FIXME - TO ADD API EXAMPLES HERE. | + | Imports and settings to add to your Python script in order to use your Django App's built in API. |
- | Instructions here. | + | \\ |
+ | Import and Settings | ||
+ | <code python> | ||
+ | # | ||
+ | |||
+ | # Required module for sys.path.append | ||
+ | import sys | ||
+ | # Required module for os.environ | ||
+ | import os | ||
+ | |||
+ | # Import Django WSGI App Loading capabilities | ||
+ | from django.core.wsgi import get_wsgi_application | ||
+ | |||
+ | ##- Configure Django Settings to point to your App -## | ||
+ | # sys.path = where manage.py is | ||
+ | sys.path.append('/ | ||
+ | |||
+ | # Settings Module = projectname.settings | ||
+ | os.environ[" | ||
+ | application = get_wsgi_application() | ||
+ | |||
+ | # Import Django App Model (from ' | ||
+ | from myapphere.models import AssetEntry | ||
+ | </ | ||
+ | |||
+ | ---- | ||
+ | |||
+ | ====== Using Your Apps API ====== | ||
+ | |||
+ | Different ways to get your app data. | ||
+ | |||
+ | ===== Load Objects ==== | ||
+ | |||
+ | Objects can be retrieved just like in views.py. | ||
+ | |||
+ | Field lookup reference: https:// | ||
+ | |||
+ | \\ | ||
+ | **Load All Objects** | ||
+ | <code python> | ||
+ | # Load all assets (just like in views.py) | ||
+ | asset_list = AssetEntry.objects.order_by(' | ||
+ | |||
+ | # Print all names (see your models.py for available fields) | ||
+ | for node in asset_list: | ||
+ | print(node.asset_name) | ||
+ | </ | ||
+ | |||
+ | \\ | ||
+ | **Load Multiple Objects that Match a filter** | ||
+ | <code python> | ||
+ | # Load with a filter on device type (get all servers) | ||
+ | asset_list = AssetEntry.objects.filter(asset_type__iexact=" | ||
+ | |||
+ | # Print all retrieved objects | ||
+ | for node in asset_list: | ||
+ | print(" | ||
+ | print(" | ||
+ | </ | ||
+ | |||
+ | \\ | ||
+ | **Load Single Object** | ||
+ | <code python> | ||
+ | # Load single object | ||
+ | single_asset = AssetEntry.objects.get(asset_name__iexact=" | ||
+ | |||
+ | # Print the name and os | ||
+ | print(" | ||
+ | </ | ||
+ | |||
+ | ===== Add New Objects ==== | ||
+ | |||
+ | Create a new object and then save it to the database. | ||
+ | |||
+ | \\ | ||
+ | **Two Steps: Create object and then save it to the database** | ||
+ | <code python> | ||
+ | # Set variables that will be used to create a new object | ||
+ | new_name = " | ||
+ | new_type = " | ||
+ | new_description = "API Added Server" | ||
+ | new_env = " | ||
+ | new_os = " | ||
+ | new_hardware = " | ||
+ | |||
+ | # Create the new object | ||
+ | new_entry = AssetEntry(asset_name = new_name, asset_type = new_type, asset_description = new_description, | ||
+ | |||
+ | # Attempt to add new object to the database | ||
+ | try: | ||
+ | new_entry.save() | ||
+ | print(" | ||
+ | except: | ||
+ | print(" | ||
+ | </ | ||
+ | |||
+ | \\ | ||
+ | **One Step: Create object in the database** | ||
+ | <code python> | ||
+ | # Set variables that will be used to create a new object | ||
+ | new_name = " | ||
+ | new_type = " | ||
+ | new_description = "API Added Server" | ||
+ | new_env = " | ||
+ | new_os = " | ||
+ | new_hardware = " | ||
+ | |||
+ | # Create the new object directly | ||
+ | new_entry = AssetEntry.objects.create(asset_name = new_name, asset_type = new_type, asset_description = new_description, | ||
+ | </ | ||
+ | |||
+ | ---- | ||
+ | |||
+ | ===== Change Existing Objects ==== | ||
+ | |||
+ | Changing an existing object in the database. | ||
<code bash> | <code bash> | ||
- | Execution code here | + | # Load all assets (just like in views.py) |
+ | asset_list = AssetEntry.objects.order_by(' | ||
+ | |||
+ | # Change server99' | ||
+ | for node in asset_list: | ||
+ | if node.asset_name == " | ||
+ | node.asset_os = " | ||
+ | |||
+ | # Attempt to save object change to the database | ||
+ | try: | ||
+ | node.save() | ||
+ | print(" | ||
+ | except: | ||
+ | print(" | ||
</ | </ | ||
---- | ---- | ||
+ | |||
+ | ===== Delete Objects ==== | ||
+ | |||
+ | Deleting objects using the API. | ||
+ | <code python> | ||
+ | # Retrieve a single object | ||
+ | single_asset = AssetEntry.objects.get(asset_name__iexact=" | ||
+ | |||
+ | # Delete the object | ||
+ | single_asset.delete() | ||
+ | </ | ||
+ | |||
+ | ---- | ||
+ | |||