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CHANGELOG for Diff 7.x-2.0+13-dev to 7.x-3.x
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============================================
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1) System variable names have been changed
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------------------------------------------
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Considerable changes have occurred.
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2) hook_diff() was removed
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--------------------------
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This has been replaced by hook_entity_diff() as of Diff 7.x-3.x.
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3) Field diffs are handled independently by Diff and the field module
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---------------------------------------------------------------------
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Field modules SHOULD NOT implement hook_entity_diff().
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This is complicated and costly in terms of performance.
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Two new field callbacks are defined to handle these.
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a) MODULE_field_diff_view_prepare()
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Optional: If you need to load data, use MODULE_field_diff_view_prepare().
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b) MODULE_field_diff_view()
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Recommended: You should implement this to generate the compared data.
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If there is no corresponding hook for a field, the field comparison will try
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to guess the value using $item['safe_value'] or $item['value'] properties.
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If you need to make this configurable, there are two additional hooks:
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c) MODULE_field_diff_default_options($field_type)
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You should define any additioal settings here. This shares a global namespace
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of the diff module, so you can overwrite core Diff settings here too.
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In saying that, take care not to accidentially do this.
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d) MODULE_field_diff_options_form($field_type, $settings)
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This is where you insert Form API elements to configure your option settings.
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4) Field diffs are now configurable
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-----------------------------------
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Each field type defined by core have configurable settings to control the
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rendering of the comparison.
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a) Global configuration
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An administration page has been added to handle field type default settings.
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This is the preferred way to configure field settings are these are global to
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all fields of this type.
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b) View mode display options
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The display "Diff comparison" is used to control the fields that are displayed
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when comparing different revisions.
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The following is a walk-through on how you would configure the Basic page
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(page) content types field configuration.
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- Enable "Diff comparison" custom view mode
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Navigate to admin/structure/types/manage/page/display and look at the
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Custom Display Settings for this view mode. Check and save.
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- Configure the display
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After Saving this page, a new tab appears "Diff comparison", click this or
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navigate directly to admin/structure/types/manage/page/display/diff_standard
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- You can hide or show the fields that you want to display when doing
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comparisons.
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- If the field has no inbuilt diff support, then the renderred field items
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will be compared.
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5) Standard comparison preview / Inline diff view setting
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---------------------------------------------------------
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You can set the view modes used to compare the rendered node. This can be found
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in the Diff settings in the Content Type settings page.
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6) Optional CSS and new Boxes styles
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------------------------------------
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This takes the styles from WikiPedia to really spice up the diff page.
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7) Optional JScript extras
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--------------------------
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This spices up the revision checkboxes on the revisions page.
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8) Simple past revision token support
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-------------------------------------
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Use-case, email notifications when content has changes. If these support tokens,
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then you can embed Diffs into these emails.
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9) Extensive string review
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--------------------------
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See http://drupal.org/node/1785742
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10) Inline block settings changes
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---------------------------------
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The inline block settings are now in the block configuration page.
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11) And much more...
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--------------------
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The complete change log follows:
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Diff 7.x-2.x
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o #888680 by Deciphered, Alan D.: Allow modules to interact via drupal_alter()
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o #1280892 by Alan D., crea: Diff should track the variables that it defines
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o #1304658 by Alan D., kari.kaariainen: Remove links and comments from the comparison preview
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o #1122206 by binford2k, Alan D.: Notices thrown by DiffEngine::process_chunk()
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o #1175064 by zilverdistel, Alan D.: Provide variables for leading and trailing context
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o #1673864 by Alan D.: Allow users to bypass the admin theme when viewing comparisons
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o #1673876 by Alan D.: Use Drupal autoloading for classes
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o #1673856 by Alan D.: Use hook_form_BASE_FORM_ID_alter() rather than hook_form_alter()
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o #1673856 by Alan D.: Normalise line endings
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o #114308 by Alan D.: add jQuery for hiding radios that shouldn't show diffs
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o #1688840 by Alan D.: Enable new JScript behaviour by default
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o #372957 by erykmynn, JuliaKM, lsrzj, andrew_rs, alexpott, et al: HTML Strip for Diff, WYSIWYG Friendly
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(This was refactored in the 7.x-3.x branch from the commited 7.x-2.x code)
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o #521212 by Alan D., blakehall: Make diff comparison page themable
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o #1671484 by Alan D.: Show number of lines changed on revisions page
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o #114699 by smokris, Alan D.: Diff module should support Token
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o #372957 by c31ck: display either Hide or Show based on what clicking it will do at any time (HTML Strip for Diff)
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This was altered for the 7.x-3.x branch.
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o #1807510 & #1825202: Simplify Diff administration
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o #1812162 by mitchell, Alan D.: 'Highlight changes' block appears on edit form
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Node to Entity changes
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----------------------
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These are roughly tracked in the meta issue #1365750 Generalize API and Integrate with core field types
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o (no issue) by Alan D.: Use entity specific system variables.
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o (no issue) by Alan D.: View mode code, new hooks, new API. Massive patch!
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Resolves:
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o #248778: Taxonomy diff
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o #1550698: Diff of "select from list" fields shows change in key, not change in value
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o #1458814: File (and image) field support
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o #1418760: Optional setting to honour the display settings
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o #1347316: Selectable view mode for inline diffs and "Current revision" display view mode
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o #1458906: Improve performances (of existing 7.x-2.x field rendering)
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o #1424162: Diff in Taxonomy term description
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o #1211282: Image diff support
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The following patches will be posted in the corresponding project queues once
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the 7.x-3.x branch is released:
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o #1595702 by Alan D., mbilbille: Support of field collection module
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o #1350604 by Alan D., johaziel: Datetime diff
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o (no issue) by Alan D.: Email field Diff support
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o (no issue) by Alan D.: Countries Diff support
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o (no issue) by Alan D.: Name field Diff support
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o (no issue) by Alan D.: Link field Diff support
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