Create a site collection with dedicated content db with the help of server object model

Question

Hi,
 I have a requirement to implement a create a new site collection with dedicated content db. i have got 2 PowerShell scripts which does the same. first i will  create a content  db and then create the sitecollection with contentdb
parameter with the created contentdb name.
Now the site collection created must contain few doc libs and few splists with look up columns, people picker data type, multiline of text, single line of text,choice field. hence i am thinking the below approach:
 1) create a web template and include sp doclibs, splists , site columns in this.
 2) i am thinking of a ui design to create the below:
 These are called "projects" which is actually the site collection with the doclibs, splists and must be created by sharepoint admin on click of a link in my landing page.end users access these "projects"  aka 
"site collections" and uploads the documents into these projects and collaborate.
so my question is :  On click of a button can I create a site collection with a dedicated content db based on the web template created with the  hel of  server  object model?
The other approach is on click of this button call the power shell script which accepts the sitecollection name and contentdb name as parameter. is this possible in  server obj.model ?
passing a paramter from code behind- visual web part ui to power shell ?
and it should create the site collec based on the web template and create the content db.
my doubt #3 : will it not throw error "request timed out" when creating the site collec and contentdb from ui ?

Answer 1

Try below:
http://sharepoint.stackexchange.com/questions/21606/programmatically-create-a-site-collection-in-an-existing-mounted-content-databa
PowerShell is just a wrapper for the object model. You shouldn't need to reference PowerShell in your feature, just create the new site collection with C# inside your feature. There's a blog post here that illustrates some code that may get you started.
http://blog.mastykarz.nl/programmatically-creating-sites-site-collections-custom-web-template/
http://blogs.msdn.com/b/vesku/archive/2014/06/09/provisioning-site-collections-using-sp-app-model-in-on-premises-with-just-csom.aspx
# Enable the remote site collection creation for on-prem in web application level
# If this is not done, unknon object exception is raised by the CSOM code
$WebApplicationUrl = http://dev.contoso.com
$snapin = Get-PSSnapin | Where-Object {$_.Name -eq 'Microsoft.SharePoint.Powershell'}
if ($snapin -eq $null)
Write-Host "Loading SharePoint Powershell Snapin"
Add-PSSnapin "Microsoft.SharePoint.Powershell"
$webapp=Get-SPWebApplication $WebApplicationUrl
$newProxyLibrary = New-Object "Microsoft.SharePoint.Administration.SPClientCallableProxyLibrary"
$newProxyLibrary.AssemblyName = "Microsoft.Online.SharePoint.Dedicated.TenantAdmin.ServerStub, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c"
$newProxyLibrary.SupportAppAuthentication = $true
$webapp.ClientCallableSettings.ProxyLibraries.Add($newProxyLibrary)
$webapp.Update()
Write-Host "Successfully added TenantAdmin ServerStub to ClientCallableProxyLibrary."
# Reset the memory of the web application
Write-Host "IISReset..."
Restart-Service W3SVC,WAS -force
Write-Host "IISReset complete."
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