{"id":3276,"date":"2018-12-19T15:50:48","date_gmt":"2018-12-19T14:50:48","guid":{"rendered":"http:\/\/blog.gocept.com\/?p=3276"},"modified":"2018-12-19T15:50:48","modified_gmt":"2018-12-19T14:50:48","slug":"union-cms-launched-on-zope-4","status":"publish","type":"post","link":"https:\/\/blog.gocept.com\/2018\/12\/19\/union-cms-launched-on-zope-4\/","title":{"rendered":"union.cms launched on Zope 4"},"content":{"rendered":"\n<p>union.cms is a content management system which was once developed on Zope 2. It was one of the early adopters of the Five technology: Using Zope 3 components in Zope 2. Now it is one of the proud early adopters of Zope 4. It is used as CMS for large organisations.<\/p>\n\n\n\n<p>The porting of union.cms to Zope 4 was not that hard because union.cms does not use things from the dirty corners of Zope 2 which have been cleaned up in Zope 4.<\/p>\n\n\n\n<p>Zope 4 is still in its late beta phase, this required more intense testing. There where no critical problems found before the launch. After launch we had an increased \u00a0number of <code>ConflictErrors<\/code> which required a deeper investigation. But even this problem was solvable in a fair amount of time so it does not hurt the editors working daily with the CMS. (Details see\u00a0<a rel=\"noreferrer noopener\" aria-label=\"Zope 4 is still in its late beta phase, this required more intense testing. There where no critical problems found before the launch. After launch we had an increased \u00a0number of ConflictErrorswhich required deeper investigation, but even this problem was solvable so it does not hurt the editors working daily with the CMS. (Details see\u00a0 (opens in a new tab)\" href=\"https:\/\/github.com\/zopefoundation\/Zope\/issues\/413\" target=\"_blank\">Zope#413<\/a>.) The users even claim it is running faster.<\/p>\n\n\n\n<p>union.cms currently runs live to Zope 4 although it still uses Python 2.7. We are working hard to port it to Python 3. The launch is planned for the end of 2019.<\/p>\n\n\n\n<p>Zope 4 comes with ZODB 5 which seems to be a big step from ZODB 3 which is used in Zope 2. There were no migration steps necessary besides using the current versions of ZODB and ZEO as union.cms still runs on Python 2.7. Upgrading to Python 3 will require a migration of the database contents. This migration is the last blocker before Zope 4 will get a <a rel=\"noreferrer noopener\" aria-label=\"final release (opens in a new tab)\" href=\"https:\/\/blog.gocept.com\/2018\/10\/11\/beta-permission-for-earl-zope-extended\/\" target=\"_blank\">final release<\/a>.<\/p>\n\n\n\n<p>Now it&#8217;s time to celebrate that the beta version of Zope 4 can be used for actual projects in a live environment. \ud83c\udf89<\/p>\n","protected":false},"excerpt":{"rendered":"<p>union.cms is a content management system which was once developed on Zope 2. It was one of the early adopters of the Five technology: Using Zope 3 components in Zope 2. Now it is one of the proud early adopters of Zope 4. It is used as CMS for large organisations. The porting of union.cms &hellip; <a href=\"https:\/\/blog.gocept.com\/2018\/12\/19\/union-cms-launched-on-zope-4\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;union.cms launched on Zope 4&#8221;<\/span><\/a><\/p>\n","protected":false},"author":15344399,"featured_media":3277,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[10221],"tags":[9247,8915,12071,663275160,72208,594099838],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2018\/12\/emotions-3419025_1920.jpg?fit=1920%2C960&ssl=1","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pFP3y-QQ","jetpack-related-posts":[{"id":3350,"url":"https:\/\/blog.gocept.com\/2019\/11\/13\/union-cms-released-on-python-3\/","url_meta":{"origin":3276,"position":0},"title":"union.cms released on Python 3","author":"Michael Howitz","date":"November 13, 2019","format":false,"excerpt":"union.cms is a content management system which was once developed on Zope 2. It was one of the early adopters of the Five technology aka using Zope 3 components in Zope 2. Now it is one of the proud early adopters of Zope 4 on Python 3. It is used\u2026","rel":"","context":"In &quot;en&quot;","block_context":{"text":"en","link":"https:\/\/blog.gocept.com\/category\/en\/"},"img":{"alt_text":"Green tree python","src":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2019\/11\/green-tree-python-1312700.jpg?fit=1200%2C863&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2019\/11\/green-tree-python-1312700.jpg?fit=1200%2C863&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2019\/11\/green-tree-python-1312700.jpg?fit=1200%2C863&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2019\/11\/green-tree-python-1312700.jpg?fit=1200%2C863&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2019\/11\/green-tree-python-1312700.jpg?fit=1200%2C863&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":2632,"url":"https:\/\/blog.gocept.com\/2017\/09\/22\/earl-zope-ii-is-dead-long-live-earl-zope\/","url_meta":{"origin":3276,"position":1},"title":"Earl Zope II is dead, long live Earl Zope","author":"Michael Howitz","date":"September 22, 2017","format":false,"excerpt":"Zope 4.0b1 released","rel":"","context":"In &quot;en&quot;","block_context":{"text":"en","link":"https:\/\/blog.gocept.com\/category\/en\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2017\/09\/pexels-photo-68806-e1506067407549.jpg?fit=1200%2C832&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2017\/09\/pexels-photo-68806-e1506067407549.jpg?fit=1200%2C832&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2017\/09\/pexels-photo-68806-e1506067407549.jpg?fit=1200%2C832&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2017\/09\/pexels-photo-68806-e1506067407549.jpg?fit=1200%2C832&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2017\/09\/pexels-photo-68806-e1506067407549.jpg?fit=1200%2C832&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":2550,"url":"https:\/\/blog.gocept.com\/2017\/08\/22\/zope-preparing-to-enter-python-3-wonderland\/","url_meta":{"origin":3276,"position":2},"title":"Zope preparing to enter Python 3 wonderland","author":"Michael Howitz","date":"August 22, 2017","format":false,"excerpt":"Once upon the time there\u00a0was an earl named Zope II. His prophets told him that around the year 2020 suddenly his peaceful country will be\u00a0devastated: They proclaim that with the \"sunset\" of\u00a0 Python 2 as stable pillar of his country, insecurity and pain will invade his borders and hurt everyone\u2026","rel":"","context":"In &quot;en&quot;","block_context":{"text":"en","link":"https:\/\/blog.gocept.com\/category\/en\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2017\/08\/pexels-photo-242558.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2017\/08\/pexels-photo-242558.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2017\/08\/pexels-photo-242558.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2017\/08\/pexels-photo-242558.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2017\/08\/pexels-photo-242558.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":3265,"url":"https:\/\/blog.gocept.com\/2018\/10\/11\/beta-permission-for-earl-zope-extended\/","url_meta":{"origin":3276,"position":3},"title":"Beta permission for Earl Zope extended","author":"Michael Howitz","date":"October 11, 2018","format":false,"excerpt":"Earl Zope was hoping to get the final permission for the\u00a0Python 3 wonderland\u00a0on the\u00a0Saltlabs Sprint\u00a0in Halle last week. He has made good progress in settling down: Zope claims compatibility with the newest Python standards (Python 3.7). Earl Zope now has new cloths for his administrative interface (called ZMI) as shown\u2026","rel":"","context":"In &quot;en&quot;","block_context":{"text":"en","link":"https:\/\/blog.gocept.com\/category\/en\/"},"img":{"alt_text":"Bootstrap ZMI","src":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2018\/10\/bildschirmfoto-2018-10-11-um-11-36-35.png?fit=1030%2C619&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2018\/10\/bildschirmfoto-2018-10-11-um-11-36-35.png?fit=1030%2C619&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2018\/10\/bildschirmfoto-2018-10-11-um-11-36-35.png?fit=1030%2C619&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2018\/10\/bildschirmfoto-2018-10-11-um-11-36-35.png?fit=1030%2C619&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":3312,"url":"https:\/\/blog.gocept.com\/2019\/05\/10\/celebration-zope-4-final-release\/","url_meta":{"origin":3276,"position":4},"title":"Celebration: Zope 4 final release","author":"Michael Howitz","date":"May 10, 2019","format":false,"excerpt":"TL;DR: Zope 4 beta phase ended, final version released! After hard, long years of preparation Earl Zope now finally made it to get a permanent license for the Python 3 wonderland: In September 2016 almost 20 people started with the reanimation of Zope at the Zope Resurrection sprint. This marked\u2026","rel":"","context":"In &quot;en&quot;","block_context":{"text":"en","link":"https:\/\/blog.gocept.com\/category\/en\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2019\/05\/fireworks-945386_1920.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2019\/05\/fireworks-945386_1920.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2019\/05\/fireworks-945386_1920.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2019\/05\/fireworks-945386_1920.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2019\/05\/fireworks-945386_1920.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":3225,"url":"https:\/\/blog.gocept.com\/2018\/05\/24\/zope-is-welcome-in-the-python-3-wonderland\/","url_meta":{"origin":3276,"position":5},"title":"Zope is welcome in the Python 3 wonderland!","author":"Michael Howitz","date":"May 24, 2018","format":false,"excerpt":"Earl Zope already got the beta permission to stay in the Python 3 wonderland some months ago. His current objective is to help old friends to come to the Python 3 wonderland and to make new friends. He has to build trust in his will and ability to stay in\u2026","rel":"","context":"In &quot;en&quot;","block_context":{"text":"en","link":"https:\/\/blog.gocept.com\/category\/en\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2018\/05\/zope-4-welcome-sprint.jpg?fit=1200%2C637&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2018\/05\/zope-4-welcome-sprint.jpg?fit=1200%2C637&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2018\/05\/zope-4-welcome-sprint.jpg?fit=1200%2C637&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2018\/05\/zope-4-welcome-sprint.jpg?fit=1200%2C637&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/blog.gocept.com\/wp-content\/uploads\/2018\/05\/zope-4-welcome-sprint.jpg?fit=1200%2C637&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/blog.gocept.com\/wp-json\/wp\/v2\/posts\/3276"}],"collection":[{"href":"https:\/\/blog.gocept.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.gocept.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.gocept.com\/wp-json\/wp\/v2\/users\/15344399"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.gocept.com\/wp-json\/wp\/v2\/comments?post=3276"}],"version-history":[{"count":6,"href":"https:\/\/blog.gocept.com\/wp-json\/wp\/v2\/posts\/3276\/revisions"}],"predecessor-version":[{"id":3284,"href":"https:\/\/blog.gocept.com\/wp-json\/wp\/v2\/posts\/3276\/revisions\/3284"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.gocept.com\/wp-json\/wp\/v2\/media\/3277"}],"wp:attachment":[{"href":"https:\/\/blog.gocept.com\/wp-json\/wp\/v2\/media?parent=3276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.gocept.com\/wp-json\/wp\/v2\/categories?post=3276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.gocept.com\/wp-json\/wp\/v2\/tags?post=3276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}