FEATURE: Node Migrations

[skurfuerst]

Can be reviewed for the overall architecture.

TODOs:

• [x] implement testcase for ChangeNodeType without dimensions
• [x] implement testcase for ChangeNodeType with dimensions
• [x] implement remaining filters
• [x] implement remaining transformations
• [x] check we do not use Flow\Inject
• [x] on resolving transformations / filters -> mapping "do you mean"? (for the new ones)

Transformations in the old system

• [x] AddDimensions -> AddDimensionSpecialization -> global
  • !! Constraint: Target Dimension Space should be empty.
  • !! sets new edges - we need a NEW EVENT for this. We can NOT trigger SPECIALIZATION of all nodes using the existing events; because this materializes the nodes.
  • "de" exists; you want to create a "de_CH" specialization
• [x] AddNewProperty
• [x] ChangePropertyValue
• [x] ChangeNodeType
• [x] RemoveNode
  • with NodeVariantSelectionStrategy internally
• [x] RemoveProperty
• [x] RenameDimension:
  • (language:de -> language:de_CH)
  • MoveToDimensionSpacePoints -> global
  • needs new Event
  • {language: de} -> {language: de_DE}
  • {} -> {language: de}
  • {language: de} -> {}
  • !! Constraint: Target Dimension Space should be empty.
• [x] RenameNode -> RenameNodeAggregate
• [x] RenameProperty
• [x] SetDimensions -> use either AddDimensionSpecialization or MoveToDimensionSpacePoints
• [x] StripTagsOnProperty

Filters in the old system

• [x] DimensionValues -> DimensionSpacePoint
• [x] IsRemoved -> obsolete, as gone nodes are gone...
• [x] NodeName
• [x] NodeType
• [x] PropertyNotEmpty
• [x] PropertyValue
• [x] Workspace -> won't implement, because we are always running only on a single workspace (live by default)

NOTE: DEPENDS ON: https://github.com/neos/content-repository-dimensionspace/pull/1

Resolves: #157

[bwaidelich]

FYI: most of the StyleCI fails will go away if you rebase to master (see #175)

[skurfuerst]

for better reviewability - https://github.com/neos/contentrepository-development-collection/pull/181/files