I have one table, and I need to remove a specific text from a specific field. This field contains a full URL of an image, I need to remove the URL and just keep the image filename.
So:
Current date: fieldname: www.example.com/photo.jpg
What I want to do is remove www.example.com/ from all of the entries for this field.
I know how to use the search and replace function, but I don't know how to leave part of the data intact.
This is what I've used but can't modify it to make it work the way I want:
UPDATE table SET oc_upload1 = REPLACE(oc_upload1,'newtext') WHERE oc_upload1 LIKE "oldtext"
Is this possible? If so, how? Thank you!
This should do:
UPDATE table
SET image = REPLACE(image, 'www.example.com/','')
but, it's possible that image contains 'www.example.com/' as part of image file name so to be extra safe and replace only the first occurence of www.example.com
UPDATE table
SET image = SUBSTRING(image, LENGTH('www.example.com/') + 1)
WHERE image LIKE 'www.example.com/%'
But if You really, really just want the file name and not path to the file You can also use:
UPDATE table
SET image = SUBSTRING_INDEX(image,'/',-1)
Note that above statement will change 'www.example.com/images/01/02/daisy.jpg' to 'daisy.jpg', not 'images/01/02/daisy.jpg'. It also wont change rows that does not contain '/' in image.
Related
I'm using python-docx to edit an existing word file. I've created a simpler case where it also fails starting with a blank document. Adding a picture to a cell in a table works just as expected. But if I want to copy that table, there seems to be a problem when I add an image to the new table. I've looked elsewhere, but this problem seems to be unique to copied tables only.
from copy import deepcopy
from docx import Document
doc = Document()
table1 = doc.add_table(rows=2, cols=2)
table1.style = 'TableGrid'
table2 = deepcopy(table)
table2._tbl = deepcopy(table1._tbl)
p = doc.add_paragraph()
p._p.addnext(table2._tbl)
# Add image to table 1
cell = table1.rows[0].cells[0]
cell.paragraphs[0].add_run().add_picture("picture.png", width=Cm(10))
# Add image to table 2
cell = table2.rows[0].cells[0]
cell.paragraphs[0].add_run().add_picture("picture.png", width=Cm(10))
doc.save("t.docx")
Problem: If I add the same image to both, it will appear correct. If I add it to only table 1, it also works. But if I add it to the copy, then it fails and looks like this:
It seems to be something that is different in the second, copied table. I know it looks like a hack the way it was created. I did it this way because, in my original document, the table is quite complex and needs to be duplicated for each case.
(Edit: added missing deepcopyimport)
I search the documentation but I didn't know exactly how to call that.
I have a template Index2Name that return a name based on an index.
I'm trying to use that name in a link:
[[Articles/{{Index2Name|0001}}|{{Index2Name|0001}}]]
or
Image:Big-0001.png|link=Articles/{{Index2Name|0001}}|''{{Index2Name|0001}}''
In the last example, the name is printed but the link doesn't work. (In gallery element)
It doesn't work. The value from the template is printed but it is not converted to a link.
How can I make this works? And does this have a name? (For future reference)
EDIT: Index2Name is a simple switch returning a few words depending of the id. Since I'm using subpages I only want the name to appear (Example: MyArticle) but the link is Articles/MyArticle
Could you clarify exactly what you want to happen please. (Where you want to link and how you want it to look).
But for example if you use:
[[Image:Big-0001.png|''{{Index2Name|0001}}'']]
It will link to the page Image:Big-0001.png with the link text being the output of:
''{{Index2Name|0001}}''
Or if you use:
[[Image:Big-001.jpg|link=Articles/{{Index2Name|0001}}]]
The image, when clicked, will redirect you to the output of:
{{Index2Name|0001}}
I got a table with columns but i'm trying to update the 'img' column to a specific image.
This is what I tried :
UPDATE employees
SET img="(LOAD_FILE('C:/Users/Test/Desktop/Test.png')"
WHERE wname='Foo';
Sadly enough the picture doesn't get converted to a real image.
You are using LOAD_FILE in wrong manner, Try this :
UPDATE employees
SET img=LOAD_FILE('C:/Users/Test/Desktop/Test.png')
WHERE wname='Foo';
See detail : http://dev.mysql.com/doc/refman/5.1/en/string-functions.html#function_load-file
In you query you are just setting the value of img as
"(LOAD_FILE('C:/Users/Test/Desktop/Test.png')" because of the double coats.
So instead of file being uploaded path location is being inserted
"(LOAD_FILE('C:/Users/Test/Desktop/Test.png')"
#Sagar Joon is absolutely right you have do the way he is saying.
I have a variable that contains the name of an image, so I set the source to be the path + variable + PNG. The thing is that at the beginning my var is null, so the SRC is not found and I get an error. How can I make the IMG to search for its source only when my variable is not null?
<img ng-src="images/{{server.purpose}}.png">
Where server.purpose contains the name of the picture according to a user selection. I get an error at the beginning because server.purpose is null. I want to use a condition that the img will look up for src only if server.purpose is not null. I tried with ng-if, but it just hide the img if not found, the error still occurs.
If you use the value null for ng-src the call to the server is prevented. Therefore remove the hardcoded bits from ng-src and set it in the scope variable. Once the image needs to be shown put the whole path in your variable.
Maybe something like this?
<div ng-if="variable">
<img ng-src="..."/>
</div>
I know that I cannot use a wildcard in a MySQL replace query through phpMyAdmin. But, I need some kind of workaround. I'm very open to ideas. Here's the skinny:
I have about 2,000 pages in a MySQL database that need to have image URL's updated. Some are local, some are hotlinked. Each one is different, the URL lengths vary, the image on the page and the new image are unique per page id number, and each one occurs at a different spot in the page.
I basically need to do the following:
UPDATE pages SET body = replace(body, 'src=\"%\"', 'src=\"http://newdomain/newimage.jpg\"') WHERE id="{page_number}"
But I know that the 'src=\"%\"' component doesn't jive.
So I fall at the feet of your collective knowledge to come up with some way to take the src="%" and replace it with a set URL for a set page id number. Thanks in advance.
If there's only one image per page, a quick solution would be like this:
UPDATE pages
SET
body = CONCAT(
SUBSTRING_INDEX(body, 'src="', 1),
'src=\"http://newdomain/newimage.jpg\"',
SUBSTRING(
SUBSTRING_INDEX(body, 'src="', -1)
FROM LOCATE('"', SUBSTRING_INDEX(body, 'src="', -1))+1)
)
WHERE
id="{page_number}" AND
body NOT LIKE '%<img%<img%';
First SUBSTRING_INDEX extract the body part at the left of src=", the last two nested SUBSTRING_INDEX extracts the body part at the right of the first " next to src=".
Last check is a very dirty check to make sure that only one image is present in the string. It could fail under some circumstances, but it might help.
My suggestion would be to build a table with your replace strings that would look like this:
page_id replace
1 src="..."
Then you can update across a JOIN like this
UPDATE pages AS p
INNER JOIN replace AS r
ON p.page_id = r.page_id
SET p.body = REPLACE(p.body, CONCAT('src="', SUBSTRING_INDEX(SUBSTRING_INDEX(p.body, 'src="', -1), '"', 1), '"', r.replace);
This would replace the last occurrence anything of format src="..." with a new value in same format, so this would work for all records with a single src value.