pesterhazy

boot-react-native/example$ boot -v dev

registering react-support [:create :modify :delete]
registering react-support/cljsjs [:create :modify :delete]
registering src [:create :modify :delete]
registering src/mattsum [:create :modify :delete]
registering src/mattsum/simple_example [:create :modify :delete]
sending change event
Syncing project dirs to temp dirs...
Acquired java.util.concurrent.Semaphore@68567e20[Permits = 0]...

pesterhazy

;; React supports "refs" as a way for a component to get a 
;; handle to its children. Classically, refs were string-based.
;; Recent versions of React support callback attributes as a
;; more elegant variant of accessing DOM notes or components.
;;
;; This example uses a Form-3 component as per
;; https://github.com/Day8/re-frame/wiki/Creating-Reagent-Components
;; 
;; For callback refs, see React's documentation
;; https://facebook.github.io/react/docs/more-about-refs.html

pesterhazy

#!/usr/bin/env python

# Cleans up the output of "react-native log-ios" by
# removing all output not related to your app, similarly
# to how it works in the XCode debug window
#
# Usage: react-native log-ios | ./react-native-only.py "<string>"
#
# where "<string>" is the name of your app as known
# to the iOS logging system. E.g. "SimpleExampleApp"

pesterhazy

#!/usr/bin/env python
#
# boot-react-native-no-dev.py
#
# Patch jsbundle to set __DEV__ to false
#
# The React Native packager often cannot handle Google Closure-generated JS files
# if `--dev false` is set, eventually running out of memory. As a workaround,
# use `--dev true` and patch the __DEV__ setting in the output bundle to
# false.

pesterhazy

;; This demonstrates the container component pattern
;; used with reagent (or re-frame)
;;
;; - listen for props changes
;; - inner component (foo-view) gets data passed as prop
;; - outer component (foo) reacts to prop changes by fetching data
;;
;; see https://medium.com/@dan_abramov/smart-and-dumb-components-7ca2f9a7c7d0
;;
;; For reagent's handling of props, see https://www.martinklepsch.org/posts/props-children-and-component-lifecycle-in-reagent.html

pesterhazy

#!/usr/bin/env python

# Patch jsbundle to set __DEV__ to false

import sys, re

print(re.sub(r'__DEV__\s*=\s*true;', "__DEV__=false;",
        sys.stdin.read()))

pesterhazy

(ns error-boundary.error-boundary
  (:require [reagent.core :as r]
            [reagent.impl.component :as comp]
            [reagent.impl.util :as util]
            [goog.object :as gobj]))

;; (c) 2016 Paulus Esterhazy
;;
;; License: MIT

pesterhazy

(defn make-intersection-q
  "Generate an intersection q for arbitrary sets of features"
  [n]
  (assert (pos? n))
  {:find '[[?product-slug ...]]
   :in ['$ (->> (range 1 (inc n)) (mapv #(symbol (str "?v" %))))]
   :where
   (into ['[?product :cat.product/slug ?product-slug]]
         (map (fn [n]
                ['?product :cat.product/features (symbol (str "?v" n))])

pesterhazy

;; Makes it easier to work from the REPL
;;
;; Don't use these from production functions

(defonce !c (atom nil))

(defn rdc []
  (let [c @!c]
    (assert c "Database not connected")
    c))

pesterhazy

;; Helpers for looking up and updating datomic db entities from the REPL

(defn every-eid
  "Returns set of ids of entites that have a given attribute"
  [db attr]
  (into #{} (d/q '[:find [?e ...]
                   :in $ ?attr
                   :where [?e ?attr]]
                 db attr)))