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[Database & ORM](/categories/database) 4. / 5. openbuildings/jam-freezable ActiveKohana-module[Database & ORM](/categories/database) openbuildings/jam-freezable =========================== Freeze dynamically computed values in the database using Jam 0.1.3(12y ago)03.0kBSD-3-ClausePHPPHP >=5.3.0 Since Nov 13Pushed 12y ago14 watchersCompare [ Source](https://github.com/OpenBuildings/jam-freezable)[ Packagist](https://packagist.org/packages/openbuildings/jam-freezable)[ Docs](https://github.com/OpenBuildings/jam-freezable)[ RSS](/packages/openbuildings-jam-freezable/feed)WikiDiscussions master Synced 2mo ago READMEChangelog (4)Dependencies (3)Versions (5)Used By (0) Freezable Behavior ================== [](#freezable-behavior) [![Build Status](https://camo.githubusercontent.com/7b07e951c18a58b9ab8fc90e2256b76068358e5ed89f08e3140c3bed758c6da0/68747470733a2f2f7472617669732d63692e6f72672f4f70656e4275696c64696e67732f6a616d2d667265657a61626c652e706e673f6272616e63683d6d6173746572)](https://travis-ci.org/OpenBuildings/jam-freezable)[![Scrutinizer Quality Score](https://camo.githubusercontent.com/7a617acc6288f3cc295aeaaba3f5b522838b08f722e1d114744f0d23c8a79cbf/68747470733a2f2f7363727574696e697a65722d63692e636f6d2f672f4f70656e4275696c64696e67732f6a616d2d667265657a61626c652f6261646765732f7175616c6974792d73636f72652e706e673f733d61313861373135356564653365613637303938383939376339336262353061366438623939333136)](https://scrutinizer-ci.com/g/OpenBuildings/jam-freezable/)[![Code Coverage](https://camo.githubusercontent.com/36cd6b01a36bb53df115918a8cfb55af6ab943917859624fd9bd5da1b356589d/68747470733a2f2f7363727574696e697a65722d63692e636f6d2f672f4f70656e4275696c64696e67732f6a616d2d667265657a61626c652f6261646765732f636f7665726167652e706e673f733d63626664613533343464666236326165366336373039386233316332373762343561663163353031)](https://scrutinizer-ci.com/g/OpenBuildings/jam-freezable/)[![Latest Stable Version](https://camo.githubusercontent.com/96b7d8739dd3afc410360b3fb79abcf9aa92f307e5cb1845d943fefe396301c3/68747470733a2f2f706f7365722e707567782e6f72672f6f70656e6275696c64696e67732f6a616d2d667265657a61626c652f762f737461626c652e706e67)](https://packagist.org/packages/openbuildings/jam-freezable) **Freezable** is a [Jam ORM](https://github.com/OpenBuildings/jam) behavior for freezing dynamically computed values in the database. --- Often one would have a method in the model which computes and returns a value. It could be a price, time or anything else. The computation could be a heavy one or time sensitive (based on time, currency exchange rates and other). Then you would need to save the value in a database column (a.k.a *freezing*) and in the future read the value from the field rather than the method. The Freezable behavior allows you to do exactly that in an easy way. The `freeze()`, `unfreeze()` and `is_frozen()` methos give you the convenience to easily get either the dynamically computed or the frozen value when needed. Usage ----- [](#usage) It has 3 parameters `associations`, `parent` and `fields` ``` class Some_Model extends Jam_Model { public static function initialize(Jam_Meta $meta) { $meta ->behaviors(array( 'freezable' => Jam::behavior('freezable', array( 'fields' => 'price', 'parent' => 'some_parent_model', 'associations' => array('some_child', 'some_children'), )), )); } //... } ``` That means that whenever the model is *frozen* then the field named `price` will be assigned the value of the method `price()`. And all the associations will be also *frozen*. The associations themselves have to be *freezable* (have the Freezable behavior attached) in order for this to work. And the `price()` method, as well as any other fields, have to take into account the value of the field. E.g. ``` public function price() { return $this->price ? $this->price : $this->compute_price(); } ``` The parent association is used in order to find the value of `is_frozen`, so that only one model holds the value of the flag. So that if you call `is_frozen()` on a *freezable* that has a *parent*, then it will get that value from the parent. Details ------- [](#details) TODO: add note about validation TODO: add more examples License ------- [](#license) Copyright (c) 2013 OpenBuildings, Inc. Developed by Ivan Kerin as part of [clippings.com](https://clippings.com). Under BSD-3-Clause license, read [LICENSE](LICENSE) file. ### Health Score 28 — LowBetter than 54% of packages Maintenance20 Infrequent updates — may be unmaintained Popularity16 Limited adoption so far Community16 Small or concentrated contributor base Maturity51 Maturing project, gaining track record Bus Factor1 Top contributor holds 68.4% of commits — single point of failure How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~36 days Total 4 Last Release 4452d ago ### Community Maintainers ![](https://avatars.githubusercontent.com/u/506129?v=4)[Harry Dobrev](/maintainers/hkdobrev)[@hkdobrev](https://github.com/hkdobrev) ![](https://avatars.githubusercontent.com/u/4113307?v=4)[Danail Kyosev](/maintainers/dkyosev)[@dkyosev](https://github.com/dkyosev) ![](https://avatars.githubusercontent.com/u/7592650?v=4)[Evstati Zarkov](/maintainers/EZarkov)[@EZarkov](https://github.com/EZarkov) ![](https://avatars.githubusercontent.com/u/745771?v=4)[Filip Georgiev](/maintainers/phgeorgiev)[@phgeorgiev](https://github.com/phgeorgiev) ![](https://avatars.githubusercontent.com/u/490439?v=4)[Zdravko Evstatiev](/maintainers/zedevs)[@zedevs](https://github.com/zedevs) --- Top Contributors [![hkdobrev](https://avatars.githubusercontent.com/u/506129?v=4)](https://github.com/hkdobrev "hkdobrev (13 commits)")[![ivank](https://avatars.githubusercontent.com/u/4976?v=4)](https://github.com/ivank "ivank (6 commits)") --- Tags databasejamfreezing ### Embed Badge ![Health badge](/badges/openbuildings-jam-freezable/health.svg) ``` [![Health](https://phpackages.com/badges/openbuildings-jam-freezable/health.svg)](https://phpackages.com/packages/openbuildings-jam-freezable) ``` ### Alternatives [openbuildings/jam Small but feature rich ORM, has extensible models and builders, baked in upload functionality, supporting multiple backends (rackspace, ftp), polymorphic associations, form builders, nested forms, validators 32181.3k16](/packages/openbuildings-jam)[olliejones/index-wp-mysql-for-speed Speed up your WordPress site by adding high-performance keys (database indexes) to your MySQL database tables. 1481.8k](/packages/olliejones-index-wp-mysql-for-speed)[devgeniem/better-wp-db-error Better WordPress database error handling. 1161.3k](/packages/devgeniem-better-wp-db-error)[pixelstudio/wp-sync-db WordPress plugin to sync database between different installs 462.5k1](/packages/pixelstudio-wp-sync-db) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)