Menu admin feature

[mazsudo]

We always need to configure menu for CMS purpose. It could be activated by configuration.
A menu is a often a simple thing:

• type | string
• name | string
• site | Sonata\Entity\Site

It contains some items:

• back office title | string
• type | string
• title (can be translated) | string|json
• parent (to build a tree) | self-reference
• menu | reference to Sonata\Entity\Menu
  ( - link | url)
  ( - article | Sonata\Entity\Article)
  ( - page | Sonata\Entity\Page)
  ( - parameters | array)
  ( - icon/class/etc...)

IMO, we would need :

• a nice UX/UI admin panel to manage menu with visual tree building, maybe drag & drop feature
• a generic (if possible) menu builder to exploited by twig
• maybe configuration to define menu's type, limited depth, others..

WDYT?

[Bladrak]

IIRC we've worked on something similar on a project, @qsomazzi @Wharenn @bdejacobet rings a bell? ;-)

[mazsudo]

agree that we did that a lot that's why i proposed this feature.
but think we can do better that we did. UI was poor and not friendly. IMO, many-to-many between Menu & Item was useless as i never saw someone reuse some already created items.