| 1 |
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| 2 | var Gun = require('./core');
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| 3 | Gun.chain.map = function(cb, opt, t){
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| 4 | var gun = this, cat = gun._, chain;
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| 5 | if(!cb){
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| 6 | if(chain = cat.fields){ return chain }
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| 7 | chain = cat.fields = gun.chain();
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| 8 | chain._.val = gun.back('val');
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| 9 | gun.on('in', map, chain._);
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| 10 | return chain;
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| 11 | }
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| 12 | Gun.log.once("mapfn", "Map functions are experimental, their behavior and API may change moving forward. Please play with it and report bugs and ideas on how to improve it.");
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| 13 | chain = gun.chain();
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| 14 | gun.map().on(function(data, key, at, ev){
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| 15 | var next = (cb||noop).call(this, data, key, at, ev);
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| 16 | if(u === next){ return }
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| 17 | if(Gun.is(next)){
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| 18 | chain._.on('in', next._);
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| 19 | return;
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| 20 | }
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| 21 | chain._.on('in', {get: key, put: next, gun: chain});
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| 22 | });
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| 23 | return chain;
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| 24 | }
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| 25 | function map(at){
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| 26 | if(!at.put || Gun.val.is(at.put)){ return }
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| 27 | if(this.as.val){ this.off() }
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| 28 | obj_map(at.put, each, {cat: this.as, gun: at.gun});
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| 29 | this.to.next(at);
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| 30 | }
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| 31 | function each(v,f){
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| 32 | if(n_ === f){ return }
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| 33 | var cat = this.cat, gun = this.gun.get(f), at = (gun._);
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| 34 | (at.echo || (at.echo = {}))[cat.id] = cat;
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| 35 | }
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| 36 | var obj_map = Gun.obj.map, noop = function(){}, event = {stun: noop, off: noop}, n_ = Gun.node._, u;
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| 37 | |
| \ | No newline at end of file |