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small javascript code cleanup #138

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merged 2 commits into from
Mar 17, 2017
Merged

small javascript code cleanup #138

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d11af7a
small javascript code cleanup
dryganets Mar 15, 2017
46bae59
formatting fixes. mycbmap renamed to callbacks.
dryganets Mar 15, 2017
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19 changes: 11 additions & 8 deletions lib/sqlite.core.js
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Original file line number Diff line number Diff line change
Expand Up @@ -588,39 +588,42 @@ SQLitePluginTransaction.prototype.run = function() {
}
};
};

i = 0;
mycbmap = {};
mycbmap = [];
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I don't see why do we need to have an array here

while (i < batchExecutes.length) {
request = batchExecutes[i];
mycbmap[i] = {
mycbmap.push({
success: handlerFor(i, true),
error: handlerFor(i, false)
};
});
tropts.push({
qid: 1111,
sql: request.sql,
params: request.params
});
i++;
}

let mysuccess = function(result) {
var j, last, q, r, ref, res, type;
var j, last, q, r, res, type;
if (result.length == 0){
return;
}
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Honestly, I don't understand the reason behind such complexity.
Though I'm not a js developer so I might be missing something.

for (i = j = 0, ref = last; 0 <= ref ? j <= ref : j >= ref; i = 0 <= ref ? ++j : --j) {

the ref could be == -1 only in case the map is empty.
I don't think we need to handle this case there.

In all other cases, the ref is >= 0.
So 0 <= ref is always true and we never will use --j and j >= ref.

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the reason for this is that it is translated from a coffee script. I keep it in sync with Cordova plugin.

last = result.length - 1;
for (i = j = 0, ref = last; 0 <= ref ? j <= ref : j >= ref; i = 0 <= ref ? ++j : --j) {
r = result[i];
for (j = 0; j <= last; ++j) {
r = result[j];
type = r.type;
res = r.result;
q = mycbmap[i];
q = mycbmap[j];
if (q) {
if (q[type]) {
q[type](res);
}
}
}
};

var myerror = function(error) {
console.log("batch execution error: ",error);
};
Expand All @@ -630,7 +633,7 @@ SQLitePluginTransaction.prototype.run = function() {
dbname: this.db.dbname
},
executes: tropts
},mysuccess, myerror);
}, mysuccess, myerror);
};

SQLitePluginTransaction.prototype.abort = function(txFailure) {
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