Snippet Models

Overview

The Snippet models provide a structured way to manage snippet resources in Palo Alto Networks' Strata Cloud Manager. These models represent reusable configuration elements that can be applied across multiple folders. The models handle validation of inputs and outputs when interacting with the SCM API.

Models

The module provides the following Pydantic models:

• SnippetBaseModel: Base model with fields common to all snippet operations
• SnippetCreateModel: Model for creating new snippets
• SnippetUpdateModel: Model for updating existing snippets
• SnippetResponseModel: Response model for snippet operations

All models use extra="forbid" configuration, which rejects any fields not explicitly defined in the model.

Model Attributes

SnippetBaseModel

Attribute	Type	Required	Default	Description
name	str	Yes	None	Name of the snippet
description	str	No	None	Description of the snippet
labels	List[str]	No	None	List of labels to apply to the snippet
enable_prefix	bool	No	None	Whether to enable prefix for this snippet

SnippetCreateModel

Inherits all fields from SnippetBaseModel without additional fields.

SnippetUpdateModel

Extends SnippetBaseModel by adding:

Attribute	Type	Required	Default	Description
id	UUID	Yes	None	The unique identifier of the snippet

SnippetResponseModel

Extends SnippetBaseModel by adding:

Attribute	Type	Required	Default	Description
id	UUID	Yes	None	The unique identifier of the snippet
type	str	No	None	Snippet type: 'predefined', 'custom', or 'readonly'
display_name	str	No	None	Display name of the snippet
last_update	str	No	None	ISO timestamp of last update
created_in	str	No	None	ISO timestamp of creation
folders	List[FolderReference]	No	None	Folders the snippet is applied to
shared_in	str	No	None	Sharing scope (e.g., 'local')

Supporting Models

FolderReference

Reference to a folder that a snippet is applied to.

Attribute	Type	Required	Default	Description
id	UUID	Yes	None	The UUID of the folder
name	str	Yes	None	The name of the folder

Exceptions

The Snippet models can raise the following exceptions during validation:

• ValueError: Raised when field validation fails (e.g., empty name)
• ValidationError: Raised by Pydantic when model validation fails

Model Validators

Name Validation

Both SnippetBaseModel and FolderReference include validators to ensure names are not empty:

from scm.models.setup.snippet import SnippetCreateModel

# This will raise a validation error
try:
    snippet = SnippetCreateModel(name="")
except ValueError as e:
    print(f"Validation error: {e}")
    # Output: Snippet name cannot be empty

Usage Examples

Creating a Snippet

from scm.client import Scm

# Initialize client
client = Scm(
    client_id="your_client_id",
    client_secret="your_client_secret",
    tsg_id="your_tsg_id"
)

# Using dictionary
snippet_data = {
    "name": "Security Policy Snippet",
    "description": "Common security policy configurations",
    "labels": ["security", "policy"],
    "enable_prefix": True
}

response = client.snippet.create(snippet_data)
print(f"Created snippet: {response.name} with ID: {response.id}")

Updating a Snippet

from scm.client import Scm

# Initialize client
client = Scm(
    client_id="your_client_id",
    client_secret="your_client_secret",
    tsg_id="your_tsg_id"
)

# Fetch existing snippet
existing = client.snippet.fetch(name="Security Policy Snippet")

# Modify attributes using dot notation
existing.description = "Updated security policy configurations"
existing.labels = ["security", "updated"]

# Pass modified object to update()
updated = client.snippet.update(existing)
print(f"Updated snippet: {updated.name}")

Listing Snippets

from scm.client import Scm

# Initialize client
client = Scm(
    client_id="your_client_id",
    client_secret="your_client_secret",
    tsg_id="your_tsg_id"
)

# List all snippets
all_snippets = client.snippet.list()

for snippet in all_snippets:
    print(f"Snippet: {snippet.name}")
    print(f"ID: {snippet.id}")
    print(f"Type: {snippet.type}")

# Filter by labels
security_snippets = client.snippet.list(labels=["security"])

# Filter by type
custom_snippets = client.snippet.list(types=["custom"])

Fetching a Snippet by Name

from scm.client import Scm

# Initialize client
client = Scm(
    client_id="your_client_id",
    client_secret="your_client_secret",
    tsg_id="your_tsg_id"
)

# Fetch snippet by name
snippet = client.snippet.fetch(name="Security Policy Snippet")
if snippet:
    print(f"Found snippet: {snippet.name}")
    print(f"ID: {snippet.id}")
    print(f"Type: {snippet.type}")

    # Access folder associations
    if snippet.folders:
        for folder in snippet.folders:
            print(f"Applied to folder: {folder.name} ({folder.id})")
else:
    print("Snippet not found")