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def _set_files(files):
    if current.request.ajax:
        current.response.js = (current.response.js or '') + """;(function ($) {
var srcs = $('script').map(function(){return $(this).attr('src');}),
    hrefs = $('link').map(function(){return $(this).attr('href');});
$.each(%s, function() {
    if ((this.slice(-3) == '.js') && ($.inArray(this.toString(), srcs) == -1)) {
        var el = document.createElement('script'); el.type = 'text/javascript'; el.src = this;
        document.body.appendChild(el);
    } else if ((this.slice(-4) == '.css') && ($.inArray(this.toString(), hrefs) == -1)) {

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script = SCRIPT("""
jQuery(function() { var t = 10; (function run() {if ((function() {
    var el = jQuery("#%(id)s");
    if (el.AnyTime_picker == undefined) { return true; }
    el.AnyTime_noPicker().AnyTime_picker( 
    jQuery.extend({format: "%%Y-%%m-%%d", labelTitle: "%(title)s"}, 
                   %(date_option)s));
})()) {setTimeout(run, t); t = 2*t;}})();});
""" % dict(id=_id, title=current.T('Choose date'), 
           date_option=_get_date_option()))

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def descendants_from_node(self, node, include_self=False):
        db, table_node = self.db, self.settings.table_node
        node = self._load_node(node)
        
        left, right = node.left, node.right
        if include_self:
            left -= 1
            right += 1
            
        return db(table_node.left > left)(table_node.right < right)(

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--- a/modules/plugin_lazy_options_widget.py
+++ b/modules/plugin_lazy_options_widget.py
@@ -37,6 +37,9 @@ class lazy_options_widget(SQLFORM.widgets.options):
         self.keyword = self.keyword % dict(fieldname=field.name)

         requires = field.requires
+
+        if isinstance(requires, IS_EMPTY_OR):
+            requires = requires.other
         if not isinstance(requires, (list, tuple)):

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NSMutableArray *tasks = [[NSMutableArray alloc] init];
[tasks addObject: ^() {
    NSLog(@"task1");
}];
[tasks addObject: ^() {
    NSLog(@"task2");
}];
for (void (^task)() in tasks) {
    task();
}

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NSMutableArray *tasks = [[NSMutableArray alloc] init];
void (^nextTask)() = ^() {
    [tasks removeObjectAtIndex: 0];
    if ([tasks count] > 0) {
        void (^task)() = [tasks objectAtIndex: 0];
        task();
    }
};
[tasks addObject: ^() {
    NSLog(@"task1");

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dispatch_queue_t trail_queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_group_t trail_group = dispatch_group_create();

NSMutableArray *tasks = [[NSMutableArray alloc] init];
void (^nextTask)() = ^() {
    [tasks removeObjectAtIndex: 0];
    if ([tasks count] > 0) {
        void (^task)() = [tasks objectAtIndex: 0];
        task();
    } else {

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//////////////////////////////////////////////////////
// In SamplePage.xaml
//////////////////////////////////////////////////////

<local:Breadcrumbs Height="25" MaxWidth="475" 
    ItemsSource="{Binding Source={StaticResource sampleBreadcrumbsViewSource}}"
    >
    <local:Breadcrumbs.ItemTemplate>
        <DataTemplate>
            <Button VerticalAlignment="Top" Margin="0,0,5,0"

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Resize Vagrant Disk

Step 1: Create VDI disk from VMDK disk type

# Turn off your Vagrant machine
$ vagrant halt

# Comment out this line in Vagrantfile
# config.disksize.size = '30GB'

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