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64 lines
2 KiB
Clojure
64 lines
2 KiB
Clojure
(ns uxbox.common.migrations
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(:require
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[uxbox.common.pages :as p]
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[uxbox.common.geom.shapes :as gsh]
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[uxbox.common.geom.point :as gpt]
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[uxbox.common.geom.matrix :as gmt]
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[uxbox.common.uuid :as uuid]
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[uxbox.common.data :as d]))
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(defmulti migrate :version)
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(defn migrate-data
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([data from-version to-version]
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(-> data
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(assoc :version to-version)
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(migrate)))
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([data]
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(try
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(reduce #(migrate-data %1 %2 (inc %2))
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data
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(range (:version data 0) p/page-version))
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;; If an error is thrown, we log the error and return the data without migrations
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#?(:clj (catch Exception e (.printStackTrace e) data)
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:cljs (catch :default e (.error js/console e) data)))))
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;; Default handler, noop
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(defmethod migrate :default [data] data)
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;; -- MIGRATIONS --
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(defmethod migrate 4 [data]
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;; We changed the internal model of the shapes so they have their selection rect
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;; and the vertices
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(letfn [;; Creates a new property `points` that stores the transformed points inside the shape
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;; this will be used for the snaps and the selection rect
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(calculate-shape-points [objects]
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(->> objects
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(d/mapm
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(fn [id shape]
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(if (= (:id shape) uuid/zero)
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shape
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(assoc shape :points (gsh/shape->points shape)))))))
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;; Creates a new property `selrect` that stores the selection rect for the shape
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(calculate-shape-selrects [objects]
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(->> objects
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(d/mapm
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(fn [id shape]
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(if (= (:id shape) uuid/zero)
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shape
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(assoc shape :selrect (gsh/points->selrect (:points shape))))))))]
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(-> data
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;; Adds vertices to shapes
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(update :objects calculate-shape-points)
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;; Creates selection rects for shapes
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(update :objects calculate-shape-selrects))))
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