Is it possible to write a specific query in typoscript - typo3

Question

my question may seem trivial, sorry if it is! I am currently learning typo3 and typoscript. I want to create a template with a dynamic background image. This image is stored in a directory. I would like to get the image name from the table tt_content. However, the way this works confuses me a bit and i don't know if my take on it is the right one.
The code looks like this:
20 = CONTENT
20.table = tt_content
20.select{
where = pid = 79
}
20.headerImagePath = COA
20.headerImagePath {
10 = TEXT
10.stdWrap.field = image
10.stdWrap.wrap = <div class="background-media" style="background-image: url('|'); background-repeat: no-repeat; background-size: cover; background-attachment: fixed; background-position: 50%;" data-start="background-position:50% 50%"
data-70-top-bottom="background-position:50% 70%">
</div>
}
I'd like to store the information about the image (the div part in the code) in a variable and put it into my template. The template part of my code looks like this:
<f:format.raw>{headerimage}</f:format.raw>
or
<f:cObject typoscriptObjectPath="headerimage" />
So my question would be, is the way i am selecting things from the database and storing into a variable correct and is the way i am calling them in the template correct? If the way above should work but i have some little errors, is it good practice or should i do things differently?
Kind Regards
Adi

Answer 1

your snippet will not work, because your structure is very wrong.
On
20.headerImagePath = COA
you try to create a new CONTENT OBJECT ARRAY on a CONTENT OBJECT.
20 = CONTENT
This will not work.
But the CONTENT Object has a property called renderObj.
Look at following example:
UNTESTED
Try it like this:
lib.headerImagePath = CONTENT
lib.headerImagePath {
# first call the content you need
table = tt_content
select {
# Add your colPos
# In this example i store my header image in colpos 9
where = colPos = 9
# PID from current field or define your own
# pidInList = 123
pidInList.field = uid
languageField = sys_language_uid
}
renderObj = COA
renderObj {
# FILES object was introduced in TYPO3 6.x
10 = FILES
10 {
# Set a reference to let the file object know, where we will get the images
references {
table = tt_content
uid.field = uid
fieldName = image
}
# make sure we only get the first image in set
maxItems = 1
renderObj = COA
renderObj {
# We only need the url and not the complete image. So we need a IMG_RESOURCE and not an IMAGE Object
10 = IMG_RESOURCE
10 {
stdWrap {
wrap = <div class="background-media" style="background-image: url('|'); background-repeat: no-repeat; background-size: cover; background-attachment: fixed; background-position: 50%;" data-start="background-position:50% 50%" data-70-top-bottom="background-position:50% 70%"></div>
required = 1
}
# Import file from current object
# and treat the id as a reference (TYPO3 File Abstraction Layer)
file {
import.data = file:current:uid
treatIdAsReference = 1
}
}
}
}
}
}
Also look at this examples:
Here they get the header image directly from the MEDIA Element in the page properties:
http://wiki.typo3.org/TypoScript_Header_Image

Answer 2

to get header image as backgound us,its working also in multilanguage work with typo 6.x
page.cssInline {
10 = FILES
10 {
references.data = levelmedia:-1, slide
references.listNum = 0
renderObj = TEXT
renderObj.data = file:current:publicUrl
renderObj.wrap (
.title-1 {
background-image: url(../|) !important;
}
)
}
}
thanks to http://www.derhansen.de/2013/02/using-fal-media-in-typo3-60-for-inline.html