A plone product to install content on a plone site.
- Install content
- Install products
- Delete content
- Apply zope interfaces
- Modify content
- Generate test content
Add zkaffold to your product:
- Add "zkaffold" to your product's install_requires in setup.py
- Add <include package="zkaffold" /> in your product's configure.zcml
- Add "profile-zkaffold:default" as a dependency to your product's metadata.xml
- run ./bin/buildout
zkaffold should now be installed. Note that zkaffold is not installable / uninstallable from the portal quick installer.
After installing zkaffold in your plone site, you can build content for your plone site by:
- create "initial" profile in your product,
- create a directory called "zkaffold" in profile/initial,
- create structure.xml (example structure.xml is in zkaffold/exportimport/tests/test_exportimport.py),
You can also create default users in your plone site by:
- create members.xml (example members.xml is in zkaffold/exportimport/tests/test_exportimport.py)
If you are using buildout, in your buildout.cfg:
- in the [plonesite] section, add your product initial profile (e.g. mysite:initial) to "profiles-initial",
- run ./bin/buildout
Your plone site should now be populated with content specified in structure.xml. Note that if your plone site already exists before running buildout, it will not add any content. You'll have to delete your plone site or run the zkaffold import step to add the content.
You can use different profiles to create different content, for example if you want test content, you can create another profile and add that in profiles-initial when you want test content to be built.
zkaffold publishes all objects by default by trying to apply transition "publish" to the objects. If your objects need a different way of publishing, have a look at zkaffold/exportimport/tests/test_exportimport.py.
The basic schema that all zkaffold XML files should begin with is:
<?xml version="1.0" encoding="UTF-8"?>
<site xmlns:zkaffold="http://www.isotoma.com/zkaffold">
</site>
The site
element is the lone root element and represents the Plone portal object.
Objects may be traversed by their ID in order to reach the object which should be modified. This is done by specifying elements with the tag name as the ID of the object in question. For example, to descend to the object at path "portal/my_folder/my_obj
" , one would use the following syntax:
<site>
<my_folder>
<my_obj>
...
</my_obj>
</my_folder>
</site>
To insert a new object into a folderish object, first descend to the target container, then insert a new element with the same tag name as the portal type you wish to add, with an id
attribute of the ID it should have within the ZODB:
<site>
<my_folder>
<MyContentType id="my_new_obj">
</MyContentType>
</my_folder>
</site>
More often than not, one will want to specify values for fields in the schema of the object when it is created. To do this, add a params
child to the element representing the new object, which itself should contain a param
element for each field. The param
tag should have the name
attribute set to the name of the field in question and the type
attribute set to one of text
, lipsum
, lipsum_html
, reference
, image
, file
, boolean
, list
or reference_list
. The param
element then contains the value that should be given to that field. One need not specify a param
element for each and every field of a content type, the default values will be used where fields are not specified.
param
elements with the type
attribute set to lipsum
or lipsum_html
have the optional attribute paras
which specifies the number of paragraphs of Lipsum to generate as the value of that field. They also contain no child elements. The lipsum
value causes ordinary Lipsum to be generated with newlines, whereas lipsum_html
generates Lipsum with paragraph tags as necessary:
<site>
<my_folder>
<MyContentType id="my_new_obj">
<params>
<param name="title" type="text">My new object</param>
<param name="text" type="lipsum_html" paras="5" />
<param name="isNew" type="boolean">True</param>
<param name="old_obj" type="reference">/my_folder/my_obj</param>
<param name="thumb" type="image">new_obj_thumb.jpg</param>
</params>
</MyContentType>
</my_folder>
</site>
As in the above example, references are given as path strings to the referenced object. Images & files are given as file names relative to the directory of the XML file.
For fields which may contain multiple values such as ReferenceList
or LinesField
, the param
element takes the type
attribute list
or reference_list
. It should then contain an items
element, which contains zero or more item
elements with their type
attribute set appropriately, as per the param
tag and their value set as their inner XML:
<site>
<my_folder>
<MyContentType id="my_new_obj">
<params>
<param name="title" type="text">My new object</param>
<param name="options" type="list">
<items>
<item type="text">Option 1</item>
<item type="text">Option 2</item>
</items>
</param>
</params>
</MyContentType>
</my_folder>
</site>
Occasionally one may wish to add interfaces to objects which they do not automatically provide, particularly marker interfaces. This is achieved using the interfaces
& interface
tags, like so:
<site>
<my_folder>
<MyContentType id="my_new_obj">
<interfaces>
<interface>identifier.of.IMyMarker</interface>
<interface>identifier.of.IReplacementObject</interface>
</interfaces>
<params>
<param name="title" type="text">My new object</param>
</params>
</MyContentType>
</my_folder>
</site>
This adds the interfaces specified by the identifiers to the object.
Interfaces that are already applied to objects may be similarly removed by replacing the interface
element with a remove
element, thus:
<site>
<my_folder>
<MyContentType id="my_new_obj">
<interfaces>
<remove>IMyMarker</remove>
</interfaces>
<params>
<param name="title" type="text">My new object</param>
</params>
</MyContentType>
</my_folder>
</site>
Existing objects may be modified in a very similar way to which they are added. Simply descend to the object in question, append the modify
element to it, and add params
and interfaces
elements as its children, as necessary. Instead of taking the default values where fields are not specified, the fields will retain their current values:
<site>
<my_folder>
<my_new_obj>
<modify>
<params>
<param name="title" type="text">My updated title for my new object</param>
</params>
</modify>
</my_new_obj>
</my_folder>
</site>
To set the default page of a new or existing folderish object, use the modify
element with a setDefaultPage
attribute:
<site>
<my_folder>
<modify setDefaultPage="my_new_obj">
...
</modify>
</my_folder>
<FolderishType id="another_folder">
<modify setDefaultPage="folder_home" />
<params>
...
</params>
<ContentType id="folder_home">
...
</ContentType>
</FolderishType>
</site>
Existing objects can be deleted by descending to their container object and inserting a delete
element with its id
attribute set to the ID of the object which should be deleted. The delete
element also has the optional parameter, ctype
which can be used to specify a particular content type which the specified object must be in order to be deleted:
<site>
<my_folder>
<!-- I never liked that new object anyway... -->
<delete id="my_new_obj" ctype="MyContentType" />
</my_folder>
</site>
zkaffold depends on lxml, which depends on libxml2-dev and libxslt-dev. In Debian, you can use:
sudo aptitude install libxml2-dev libxslt-dev
zkaffold supports a plugin system for exporting content:
- Add an import step for your profile initial,
create an exporter for your field, it should return a lxml.etree.Element for <param> or (lxml.etree.Element for <param>, filename, file content):
def my_field_exporter(plone_object, field): ... return param
create the import step to register the field exporter:
from zkaffold.contextexporter import IContentExporter def register_field_exporters(context): portal = context.getSite() sm = portal.getSiteManager() exporter = sm.getUtility(IContentExporter) exporter.register_field_exporter('mysite.fields.MyField', 'mysite.field_exporters.my_field_exporter')
To run zkaffold's tests, you need to:
- add "zkaffold [test]" in the "eggs" in the [test] section of your buildout.cfg,
- run ./bin/buildout,
- ./bin/test