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Backend Layout

Since TYPO3 4.5 there has been a database record type "Backend Layout" to define a combination of rows and columns to which content can be added in the page module.

With TYPO3 7.4 a new feature was introduced to define backend layouts in TYPO3 via PageTSConfig. It implements a generic PageTS provider for backend layouts to make backend layouts reusable across installations.

Backend Layout Video

Benjamin Kott: How to implement frontend layouts in TYPO3 using Backend Layouts

Backend Layout Definition

Backend layouts can be configured either as "Backend Layout" record in a sysfolder or as Page Tsconfig entry in mod.web_layout.BackendLayouts. Each layout will be saved with a key. The "Backend Layout" records are using their uid as a key, therefore layouts defined via Page Tsconfig should use a non-numeric string key. It is a good practice to use a descriptive name as key.

The entries title and icon are being used to display the backend layout options in the page properties.

The overall grid size will be defined by config.backend_layout.colCount and rowCount. Additional rows in the rows array and additional columns in the each rows columns section will be ignored when they are greater then rowCount or colCount respectively.

Each column position can span several columns and or several rows. Each column position must have a distinct number between 0 and n. It is best practice to always assign "0" to the main column if there is such a thing as a main column. Multiple backend layouts that contain similar parts, i.e. header, footer, aside, ... should each have assigned the same number within one project. This leads to a uniform position of the content, which makes it more clear for further use.

backend layout Simple Example

The following PageTsConfig example creates a simple backend layout consisting of two rows and just one column.

mod {
  web_layout {
    BackendLayouts {
      exampleKey {
        title = Example
        config {
          backend_layout {
            colCount = 1
            rowCount = 2
            rows {
              1 {
                columns {
                  1 {
                    name = LLL:EXT:frontend/Resources/Private/Language/locallang_ttc.xlf:colPos.I.3
                    colPos = 3
                    colspan = 1
                  }
                }
              }
              2 {
                columns {
                  1 {
                    name = Main
                    colPos = 0
                    colspan = 1
                  }
                }
              }
            }
          }
        }
        icon = EXT:example_extension/Resources/Public/Images/BackendLayouts/default.gif
      }
    }
  }
}

Backend Layout Advanced Example

The following Page Tsconfig example creates a 3x3 backend layout with 5 column position sections in total. The topmost row (here called "header") spans all 3 columns. There is an "aside" spanning two rows on the right.

mod.web_layout.BackendLayouts {
  exampleKey {
    title = Example
    icon = EXT:example_extension/Resources/Public/Images/BackendLayouts/default.gif
    config {
      backend_layout {
        colCount = 3
        rowCount = 3
        rows {
          1 {
            columns {
              1 {
                name = Header
                colspan = 3
                colPos = 1
              }
            }
          }
          2 {
            columns {
              1 {
                name = Main
                colspan = 2
                colPos = 0
              }
              2 {
                name = Aside
                rowspan = 2
                colPos = 2
              }
            }
          }
          3 {
            columns {
              1 {
                name = Main Left
                colPos = 5
              }
              2 {
                name = Main Right
                colPos = 6
              }
            }
          }
        }
      }
    }
  }
}

Output of a Backend Layout in the Frontend

The backend layout to be used on a certain page gets determined either by the backend layout being chosen directly and stored in the pages field "backend_layout" or by the field "backend_layout_next_level" of a parent page up the rootline.

To avoid complex TypoScript for integrators, the handling of backend layouts has been simplified for the frontend.

To get the correct backend layout, the following TypoScript code can be used:

page.10 = FLUIDTEMPLATE
page.10 {
  file.stdWrap.cObject = CASE
  file.stdWrap.cObject {
        key.data = pagelayout

        default = TEXT
        default.value = EXT:sitepackage/Resources/Private/Templates/Home.html

        3 = TEXT
        3.value = EXT:sitepackage/Resources/Private/Templates/1-col.html

        4 = TEXT
        4.value = EXT:sitepackage/Resources/Private/Templates/2-col.html
  }
}

Using data = pagelayout is the same as using as

field = backend_layout
ifEmpty.data = levelfield:-2,backend_layout_next_level,slide
ifEmpty.ifEmpty = default

In the fluid template the column positions can be accessed now via content mapping as described here Content Mapping.

Reference Implementations of Backend Layouts

The extension bootstrap_package ships several Backend Layouts as well as an example configuration of how to include frontend templates for Backend Layouts (see setup.typoscript Line 95 ff)

Extensions for backend layouts

In many cases besides defining fixed backend layouts a more modular approach with the possibility of combining different backend layouts and frontend layouts may be feasible. The extension gridelements integrates the grid layout concept also to regular content elements.

The extension content_defender offers advanced options to the column positions i.e. allowed or disallowed content elements, a maximal number of contend elements.