CRUD

The CRUD methods are used to create, read, update and delete triggers. There are two ways to use them. The first is through the SDK and the second is through the Project object. The syntax is the same for all CRUD methods. If you want to manage triggers from the project, you can use the Project object and avoid to specify the project parameter. In this last case, you need to specify every parameter as keyword argument. In any case, you need to first import the SDK and instantiate a Project object that will be the context in which you can manage entities.

Example:

import digitalhub as dh

project = dh.get_or_create_project("my-project")

# Use CRUD method on project
trigger = project.new_trigger(name="my-trigger",
                            kind="scheduler",
                            task="my-task",
                            function="my-function")

# Use CRUD method from SDK
trigger = dh.new_trigger(project="my-project",
                        name="my-trigger",
                        kind="scheduler",
                        task="my-task",
                        function="my-function")

A trigger entity can be managed with the following methods.

Create:

new_trigger

Read:

get_trigger
get_trigger_versions
import_trigger
list_triggers

Update:

update_trigger

Delete:

delete_trigger

Create

You can create a trigger with the new_trigger(). The kwargs parameters are determined by the kind of the object, and are described in the kinds section.

New

This function creates a new entity and saves it into the backend.

`new_trigger`

Parameters:

Name	Type	Description	Default
`project`	`str`	Project name.	required
`name`	`str`	Object name.	required
`kind`	`str`	Kind the object.	required
`uuid`	`str`	ID of the object.	`None`
`description`	`str`	Description of the object (human readable).	`None`
`labels`	`list[str]`	List of labels.	`None`
`embedded`	`bool`	Flag to determine if object spec must be embedded in project spec.	`False`
`**kwargs`	`dict`	Spec keyword arguments.	`{}`

Returns:

Type	Description
`Trigger`	Object instance.

Examples:

>>> obj = new_trigger(project="my-project",
>>>                   kind="trigger",
>>>                   name="my-trigger",)

Read

To read triggers you can use the get_trigger(), get_trigger_versions(), list_triggers() or import_trigger() functions.

Get

This function searches for a single trigger into the backend. If you want to collect a trigger from the backend using get_trigger(), you have two options:

The first one is to use the key parameter which has the pattern store://<project-name>/<entity-type>/<entity-kind>/<entity-name>:<entity-id>.
The second one is to use the entity name as identifier, the project name as project and the entity id as entity_id parameters. If you do not specify the entity id, you will get the latest version.

`get_trigger`

Parameters:

Name	Type	Description	Default
`identifier`	`str`	Entity key (store://...) or entity name.	required
`project`	`str`	Project name.	`None`
`entity_id`	`str`	Entity ID.	`None`
`**kwargs`	`dict`	Parameters to pass to the API call.	`{}`

Returns:

Type	Description
`Trigger`	Object instance.

Examples:

Using entity key:

>>> obj = get_trigger("store://my-trigger-key")

Using entity name:

>>> obj = get_trigger("my-trigger-name"
>>>                  project="my-project",
>>>                  entity_id="my-trigger-id")

Get versions

This function returns all the versions of a trigger from the backend.

`get_trigger_versions`

Parameters:

Name	Type	Description	Default
`identifier`	`str`	Entity key (store://...) or entity name.	required
`project`	`str`	Project name.	`None`
`**kwargs`	`dict`	Parameters to pass to the API call.	`{}`

Returns:

Type	Description
`list[Trigger]`	List of object instances.

Examples:

Using entity key:

>>> objs = get_trigger_versions("store://my-trigger-key")

Using entity name:

>>> objs = get_trigger_versions("my-trigger-name",
>>>                            project="my-project")

List

This function returns all the latest triggers from the backend related to a project.

`list_triggers`

Parameters:

Name	Type	Description	Default
`project`	`str`	Project name.	required
`**kwargs`	`dict`	Parameters to pass to the API call.	`{}`

Returns:

Type	Description
`list[Trigger]`	List of object instances.

Examples:

>>> objs = list_triggers(project="my-project")

Import

This function loads the trigger from a local yaml file descriptor.

`import_trigger`

Parameters:

Name	Type	Description	Default
`file`	`str`	Path to YAML file.	required

Returns:

Type	Description
`Trigger`	Object instance.

Examples:

>>> obj = import_trigger("my-trigger.yaml")

Update

To update a trigger you can use the update_trigger() method.

`update_trigger`

Parameters:

Name	Type	Description	Default
`entity`	`Trigger`	Object to update.	required

Returns:

Type	Description
`Trigger`	Entity updated.

Examples:

>>> obj = update_trigger(obj)

Delete

To delete a trigger you can use the delete_trigger() method.

`delete_trigger`

Parameters:

Name	Type	Description	Default
`identifier`	`str`	Entity key (store://...) or entity name.	required
`project`	`str`	Project name.	`None`
`entity_id`	`str`	Entity ID.	`None`
`delete_all_versions`	`bool`	Delete all versions of the named entity. If True, use entity name instead of entity key as identifier.	`False`
`**kwargs`	`dict`	Parameters to pass to the API call.	`{}`

Returns:

Type	Description
`dict`	Response from backend.

Examples:

If delete_all_versions is False:

>>> obj = delete_trigger("store://my-trigger-key")

Otherwise:

>>> obj = delete_trigger("my-trigger-name"
>>>                     project="my-project",
>>>                     delete_all_versions=True)