I want to collect pictures from Google image search. However, I am constantly notified with an error.
For example, the URL https://www.google.com/search?q=banana&hl=en&gws_rd=ssl&tbm=isch is fine in my browser, but in web harvest it reports that: the reference to entity "gws_rd" must end with the ';' delimiter.
I guess '&' is a special character in webharvest, but I cannot find information about it. Can you figure out why?
This is the code:
<var-def name="search" overwrite="false">banana</var-def>
<var-def name="url"><template>http://images.google.com/images?q=${search}&hl=en</template></var-def>
<var-def name="xml">
<html-to-xml>
<http url="${url}"/>
</html-to-xml>
</var-def>
<var-def name="largeImgUrl">
<xpath expression="//*[#id='irc_cc']/div[4]/div[1]/div/div[2]/div[1]/a/img">
<var name="xml"/>
</xpath>
</var-def>
from experience you will need to first store the url in a variable, and then refer to the variable from within the http processor call
EDIT
I notice you have pasted your code. Good.
1) remember that all the webharvest config files are written in XML, and amersand & is a special character in XML, as it is part of the entity declaration
In webharvest i normaly avoid this issue by using CDATA sections within <template> or <code> blocks.
2)when using webharvest graphical interface, you can easily debug your xpath expressions. Run your code as normal, and then on the toolbar at the top click the icon with a magniffying glass. Then choose "xml" (name of your variable you have set). This will open a new window, with a preview of your xml. Make sure the "view as" dropdown is set to xml.
You should now have a "xpath expression" box where you can test your xpath.
3)I strongly discourage from writing xpaths referring to numbered elements. (eg div[4]/div[1]/div/div[2]/div[1]/). Any small change in the underlying page usually breaks the code. It is much better to select elements based on id or other properties.
Related
I need to create a footer in a Liferay-project, that can be modified from the instance. I've been trying various things in my footer-code and instance, but haven't figured out how to do it.
Any content inside the footer can't be touched and in page edit mode, Liferay says "This area is defined by the theme. You can change the theme settings by clicking more in the Page Design Options panel on the sidebar". I didn't get any help from Page Design Options either. Is there a way to do this?
I found the answer after hours of work and searching and want to share it with everyone here. The working solution was found here, in one of the comments.
You need to write some code (I use Freemarker/ftl) and then configure the site pages a bit, but here's how it works:
Put a new setting inside liferay-look-and-feel.xml:
<settings>
<setting key="footer-article-id" value="" configurable="true" type="text"/>
</settings>
This will create a new configurable option in page options, allowing you to input the ID of the web content.
NOTE: <theme> might get underlined red "The content of element type "theme" must match". This still prints everything correctly, but the tags are given in a wrong order. Inside my <theme>, I have <template-extension>, <settings> and <portlet-decorator> in that order, which removes the error.
Assign a variable in init_custom.ftl (cleans up the footer-code):
<#assign footer_article_id = getterUtil.getString(themeDisplay.getThemeSetting("footer-article-id"))/>
And then add this to the footer-code, to create the spot, where the content is visible:
<#liferay_journal["journal-article"]
articleId=footer_article_id
groupId=page_group.groupId
/>
After this, everything should be ready code-wise.
Create a Web Content for your footer. In the creation screen, there's an ID on the panel on the right. Publish your content and grab the ID.
Finally, go to Site Builder --> Pages and click on configuration from the top bar (behind three dots). You should see the input field like in the first picture: That's where you add the ID.
Save the settings and your web content should now be in the footer.
Hope this helps!
I have a page template that has this line of code below:
<div id="<%= CurrentDocument.NodeAlias %>" class="lvl3">
Things work - the id value shows correctly. However, when using the Page Templates module Design tab, there's an error. In Event log, I saw the error message "Object reference not set to an instance of an object". Taking the id snippet out, the error is gone. I'm not sure what the error means and how to fix it. Could you help?
I do need some page-specific unique identifier in there (NodeAlias in this case) for other purposes.
The answer is pretty simple - if you open your page template in Kentico Page Templates application - your CurrentDocument is always null (because you are editing Template itself without specific document).
You could do absolutely the same thing in Pages application with the Design tab. It's also possible to edit all the template properties from there, including the Layout:
Using code blocks on page template layout is not supported. I assume you are using ASCX layout. Moreover your code looks more like a macro - so, maybe you are using HTML layout type? If yes, then the syntax should be {%CurrentDocument.NodeAlias%}
If you are using ASCX layout you may face also this issue: https://devnet.kentico.com/articles/the-controls-collection-cannot-be-modified-because-the-control-contains-code-blocks
Note that in portal engine the life cycle is bit modified, so we cannot ensure the code blocks will work every time - it may work sometimes. It mainly depends on what other web parts/controls and in what order are placed in the page template. I would rather recommend using the workaround from the article.
Or, you can give it a try, with no guarantee, this may work in certain cases, you need to specify the full namespace:
<%= CMS.MacroEngine.MacroResolver.Resolve("{%CurrentDocument.NodeAlias#%}") %>
In my custom page type, you can select an uploaded file. That's fine, but in my ascx transformation, i'm having a hard time getting the URL. The field is 'Process'.
Here's what i currently have.
<%# IfEmpty(Eval("Process"),"N/A","<a href=" + Eval("Process") +" target='blank' class='icon download'>Download</a>")%>
When rendered, the html is this:
Download
I'm missing something.
You can use either of the 2 methods below. Both have their downfalls though.
<a href="<%# GetFileUrl("Process", "Something") %>"Link here<a/> this will
Downfall with this is if there is no value in the "Process" field, it will return an invalid URL. So I tend to use something a little better (but not much)
Item to download
This will create a valid URL with some invalid properties to it. Meaning if there is no value in the Process field, it will return 00000000-0000-0000-0000-000000000000. If the NodeAlias field is empty, it will return "download". So again, not 100% fool-proof but it works well in most cases.
Update
Check out this link:
https://devnet.kentico.com/articles/options-for-file-fields-in-structured-data
I think the piece you need in here is in the "CMS.File page type" section:
This is the link to the picture
Check out transformation methods reference
You can use <%#GetImage(Eval("Process"))%>. This will return an Image tag. There are a couple other parameters for sizing if you want to use those.
See the "Transformation reference" link on your Trasnformation editor, it goes to all the available transformation methods you can use.
In it it shows:
This will generate an actual image tag. If however you want a link, it usually is
/getattachment/<%# Eval("TheImage")%>/ImageFileNameCanBeAnythingThough.jpg
example:
/getattachment/1936c69d-a28c-428a-90a7-09154918da0f/Christmas.jpg
I'm a coldfusion developer working on a reporting application to display information from a CFSTOREDPROC process. I've been able to get the data from my query to display correctly in a CFGRID, and I'm really happy with the display of the data. The grid saves a lot of time because it avoids using the CFOUTPUT tag and formatting the data in HTML for hundreds of reports.
All I would like to do is add a simple Disk Icon somewhere on the datagrid control that would save the contents of the datagrid and export it into an XLSX(2010) file that an end user could then manipulate in a spreadsheet program. This is important because the data needs to have a 'snapshot' at certain times of year saved.
Solutions Tried:
I looked into having a link from the report options page that would fire into a report_xls.cfm page but designing a page that catches all of the report options a second time seems dumb and would add thousands of CFM's to the website.
CFSPREADSHEET seems not to work for a variety of reasons. One is that the server seems to constantly fight me with the 'write' function in this tag. Another is that I don't know how to make the javascript work for this button to get the output that I want.
I also looked into doing this as a Javascript button that would fire based on the data entered. Although the data from a CFSTOREDPROC will display correctly if I use a CFOUTPUT block, CFGRID seems to have a hard time with all output styles except HTML. This has caused some difficulty with these solutions because the application doesn't spit out a neat HTML table but instead sends a javascript page section.
Raymond Camden's blog contains an entry Exporting from CFGRID that we used in our project.
The example in the article exports to PDF, but it is rather simple to modify the download.cfm file to export to Excel files as well:
You modify the file to generate the <table>...</table> HTML from his example in a <cfsavecontent variable="exportList"> tag, so that the #exportList# variable contains the table that will be shown in the spreadsheet.
Next we have a URL parameter mode that determines whether it is exported to PDF or Excel.
So the end of our download.cfm looks like the following:
<cfif url.mode EQ "PDF">
<cfheader name="Content-Disposition" value="inline; filename=report.pdf">
<cfdocument format="pdf" orientation="landscape">
<cfoutput>#exportList#</cfoutput>
</cfdocument>
<cfelse>
<cfcontent type="application/vnd.ms-excel">
<cfheader name="Content-Disposition" value="report.xls">
<cfoutput>#exportList#</cfoutput>
</cfif>
I'm developing a SharePoint publishing site and setting up its content types and page layouts. I need to display the value for a Year field with type Number. The markup currently is:
<SharePointWebControls:NumberField FieldName="Year" runat="server" id="Year" />
The problem with the default behaviour is that it shows each number with a comma, e.g. "2,009" instead of "2009". Is there a way I can set some sort of String.Format syntax on the field to make it display correctly?
I tried creating a new rendering template which looks like this:
<SharePoint:RenderingTemplate ID="YearNumberField" runat="server">
<Template>
<SharePoint:FormField ID="TextField" runat="server"/>
</Template>
</SharePoint:RenderingTemplate>
... but there doesn't appear to be any 'Format' property on the FormField object.
Thanks for any help.
Update:
I tried wrapping the SharePoint:FormField tag inside SharePoint:FormattedString. Unfortunately the field was not formatted, same results as this question.
The issue is that the rendering template must use FormField. This always renders the value in the format: 1,989 . To resolve this the rendered text needs to be trapped and altered to get the desired output. Here are two approaches to resolving this:
1. Write a custom control inherited from NumberField
The RenderFieldForDisplay and RenderFieldForInput methods can be overridden to provide the desired output. Additional properties can be added to the control to describe additional behaviour.
Pros: No changes to rendering templates required.
2. Write a custom control for use in the rendering template
A control that (for example) uses regular expressions to alter text can wrap around the FormField control.
<SharePoint:RenderingTemplate ID="YearField" runat="server">
<Template>
<RX:RegexManipulatorControl runat="server"
Mode="Replace"
Expression=","
Replacement="">
<SharePoint:FormField runat="server"/>
</RX:RegexManipulatorControl>
</Template>
</SharePoint:RenderingTemplate>
Pros: Generic solution can be used for any type of field.
from Just Another SharePoint Blog
Open the list view in SharePoint
Designer.
Right click on the data view web part.
(the list)
Select Convert to XSLT Data View
Click on the number field you would
like to format
A > will appear showing Data Field,
Format As
Click on the link below Format As -
Number formatting options
Under Options deselect Use 1000
separator
Click OK
Save your changes and hit F12 to
preview