Mercurial > pumpbridge

annotate src/edge.coffee @ 29:34cfa565f565

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author Mathias Gebbe <mgebbe@intevation.de>
date Tue, 29 Jul 2014 16:06:05 +0200
parents b73191efc65b
children
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0
b73191efc65b Initial import of pumpbridge (bloody bloody alpha)
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1 # edge.coffee
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2 #
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3 # A network edge between users in OStatus or pump.io graph
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4 #
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5 # Copyright 2013, E14N (https://e14n.com/)
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6 #
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7 # Licensed under the Apache License, Version 2.0 (the "License");
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8 # you may not use this file except in compliance with the License.
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9 # You may obtain a copy of the License at
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10 #
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11 # http://www.apache.org/licenses/LICENSE-2.0
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12 #
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13 # Unless required by applicable law or agreed to in writing, software
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14 # distributed under the License is distributed on an "AS IS" BASIS,
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15 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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16 # See the License for the specific language governing permissions and
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17 # limitations under the License.
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18
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19 _ = require("underscore")
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20 async = require("async")
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21 DatabankObject = require("databank").DatabankObject
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22 Edge = DatabankObject.subClass("edge")
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23
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24 Edge.schema =
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25 pkey: "from_to"
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26 fields: [
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27 "from"
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28 "to"
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29 "created"
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30 "received"
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31 ]
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32 indices: [
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33 "from"
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34 "to"
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35 ]
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36
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37 Edge.beforeCreate = (props, callback) ->
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38 if not props.from or not props.to
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39 callback new Error("Need 'from' and 'to' in an edge'"), null
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40 return
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41 props.from_to = Edge.key(props.from, props.to)
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42 props.received = Date.now()
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43 callback null, props
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44 return
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45
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46 Edge::beforeSave = (callback) ->
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47 edge = this
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48 if not edge.from or not edge.to
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49 callback new Error("Need 'from' and 'to' in an edge'"), null
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50 return
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51 edge.from_to = Edge.key(edge.from, edge.to)
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52 edge.received = Date.now() unless edge.received
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53 callback null
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54 return
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55
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56 Edge.key = (fromId, toId) ->
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57 fromId + "→" + toId
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58
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59 module.exports = Edge
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