小编Seb*_*ien的帖子

当我尝试运行捆绑安装时,我收到此错误:

    Installing hiredis (0.3.2) with native extensions 
    Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

    C:/RailsInstaller/Ruby1.9.2/bin/ruby.exe extconf.rb 
    gcc -std=c99 -pedantic -c -O3 -fPIC -Wall -W -Wstrict-prototypes -Wwrite-strings    -g -ggdb  net.c
    net.c:1:0: warning: -fPIC ignored for target (all code is position independent)
    net.c:35:24: fatal error: sys/socket.h: No such file or directory
    compilation terminated.
    make: *** [net.o] Error 1
    creating Makefile

    make
    C:/RailsInstaller/Ruby1.9.2/bin/ruby -e "puts 'EXPORTS', 'Init_hiredis_ext'"  > hiredis_ext-i386-mingw32.def
    gcc -I. -IC:/RailsInstaller/Ruby1.9.2/include/ruby-1.9.1/i386-mingw32 -I/C/RailsInstaller/Ruby1.9.2/include/ruby-1.9.1/ruby/backward -I/C/RailsInstaller/Ruby1.9.2/include/ruby-1.9.1 -I.   -O3 -g -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings …

我正在使用highcharts绘制一些图表.我使用这样的基本线图:

http://www.highcharts.com/demo/spline-irregular-time

如何在图表区域下方而不是在右侧显示图例？

http://www.highcharts.com/demo/column-stacked-percent

谢谢

如何在textarea上默认启用wysiwyg？我的意思是,我不想点击wysiwyg按钮来显示tinyMCE区域:

我直接想要这个:

我有使用rails的性能问题.当我对这样的控制器进行ajax调用时:

def test
    @hotels = Hotel.all
    render :json => ['hotels' => @hotels ], :include=> [:country, :city]
end

完成大约需要2-5秒.我的数据库中只有40家酒店.我认为它很长......例如,Django上的相同请求将需要400ms

我忘了配置好我的环境吗？

我使用Rails entreprise版本和乘客.

编辑:我的日志文件:

     Started GET "/hotels/test.json" for 172.16.81.1 at Wed Oct 12 22:11:06 +0200 2011
    [paperclip] Duplicate URL for image with /system/:attachment/:id/:style/:filename. This will clash with attachment defined in HotelImage class
    [paperclip] Duplicate URL for thumbnail with /system/:attachment/:id/:style/:filename. This will clash with attachment defined in Hotel class
    [paperclip] Duplicate URL for map with /system/:attachment/:id/:style/:filename. This will clash with attachment defined in …

我有一个模特:

class HotelTheme < ActiveRecord::Base
  has_many :hotels
end

我想随机获得6家酒店.

我试过了:

@hotelTheme.hotels.rand(6)

但它失败了,任何想法？

谢谢

我有一个UISlider与minimumValue 0和maximumValue.我想打一个interval的0.5,并在显示它label(它的工作).

我怎样才能设置我的间隔slider？我试过解决方案来绕过价值...但我失败了.

谢谢

我想在我的应用上删除孤立的项目.所以我这样做了:

for (Card *c in fetchedResultsController.fetchedObjects) {
   BOOL result = NO;
   for (Card * remove_card in remoteResultArray) {
      if ([remove_card.id intValue] == [c.id intValue]) {
          result = YES;
       }
   }
   if (!result) {
        NSLog(@"%@",c.id);
        [[RKManagedObjectStore defaultStore].mainQueueManagedObjectContext deleteObject:c];
   }
 }
 [[RKManagedObjectStore defaultStore].mainQueueManagedObjectContext save:&error];

实际上它有效,我的记录消失但是当我重新启动应用程序时,它们又在这里.如何使用restkit删除记录？

我有两个型号:

class Album(models.Model):
#Attributes
title = models.CharField(max_length=200)
displayed = models.BooleanField()
created_on = models.DateTimeField(auto_now_add=True)

class Photos(models.Model):
#Attributes
title = models.CharField(max_length=500)
link = models.CharField(max_length=500)
album = models.ForeignKey(Album, unique=False, verbose_name=_('album'))

def upload_path(self, filename):
    return 'upload/photos/%s/%s' % (self.id, filename)

def upload_path_thumbnail(self, filename):
    return 'upload/photos/%s/%s' % (self.id, "thumnail_" +filename)

thumbnail = models.ImageField(upload_to=upload_path_thumbnail)                             
photo = models.ImageField(upload_to=upload_path)
created_on = models.DateTimeField(auto_now_add=True)
displayed = models.BooleanField() 

我想强制,当我选择照片时,总是过滤显示= 1.

谢谢

我希望在用户在textarea(使用Javascript)中输入html时显示html.像这样 :

Every thing fine <a href="/toto"> link </a>

如果不使用"预"标签,我怎么能这样做？我只是想避免html解释.

谢谢