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<base href="https://bugs.webkit.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Cannot access the SQLTransaction.constructor.prototype"
href="https://bugs.webkit.org/show_bug.cgi?id=156613">156613</a>
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<th>Summary</th>
<td>Cannot access the SQLTransaction.constructor.prototype
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>Safari 9
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<th>Hardware</th>
<td>Macintosh
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<th>OS</th>
<td>OS X 10.11
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>WebCore Misc.
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>d.camata@gmail.com
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<pre>In any other browser, I can access and modify SQLTransaction.constructor.prototype, like this:
<span class="quote">> var db = openDatabase('mydb', '1.0', 'my first database', 2 * 1024 * 1024);</span >
< undefined
<span class="quote">> db.transaction(function (tx) { console.log(tx.constructor.prototype) });</span >
< undefined
-> SQLTransaction {Symbol(Symbol.toStringTag): "SQLTransaction"}
The reason I do this is mostly to add a sinonjs spy to the executeSql method for some tests.
But when I try to do this with Safari I get a "TypeError: Attempted to wrap undefined property executeSql as function". I investigated a little bit and I saw that when I run this code inside Safari I don't get anything logged to my console. These are the options I tried:
<span class="quote">> db.transaction(function (tx) { console.log(tx.constructor.prototype) });</span >
< undefined
<span class="quote">> db.transaction(function (tx) { console.log(tx.constructor) });</span >
< undefined
<span class="quote">> db.transaction(function (tx) { console.log(tx) });</span >
< undefined
This is very awkward. All these examples works flawlessly in other browsers. Then I tried to get the transaction outside from the function, just for curiosity and I noticed something even more weird:
<span class="quote">> db.transaction(function (tx) { global_transaction = tx });</span >
< undefined
<span class="quote">> global_transaction.constructor</span >
< function Object() {
[native code]
} = $3
<span class="quote">> global_transaction.constructor.prototype</span >
< {} = $2
Now I can access the constructor, but the prototype is empty. Because of this I can't properly test my code, which uses a lot of webSQL.
Do you think this also has some interference with IndexedDB? Exactly ALL my tests using IndexedDB fails only on Safari too, but I still have to debug them a little bit more to correctly understand what is going on.
Note: this is my first bug report here, so if it's not good enough feel free to give suggestions on how to improve it. Thanks!</pre>
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