public static CodeBlockMappingExpression DeleteCode(this IModificationMappingExpression exp)
{
CodeBlockMappingExpression lastCodeBlockExp = null;
foreach (var codeByAddedCode in (
from cb in exp.Queryable <CodeBlock>()
join m in exp.Queryable <Modification>() on cb.ModificationID equals m.ID
join f in exp.Queryable <ProjectFile>() on m.FileID equals f.ID
let addedCodeID = cb.Size < 0 ? cb.TargetCodeBlockID : cb.ID
where
f.ID == exp.CurrentEntity <ProjectFile>().ID
group cb.Size by addedCodeID
)
)
{
double currentCodeSize = codeByAddedCode.Sum();
if (currentCodeSize != 0)
{
if (lastCodeBlockExp == null)
{
lastCodeBlockExp = exp.Code(-currentCodeSize);
}
else
{
lastCodeBlockExp = lastCodeBlockExp.Code(-currentCodeSize);
}
lastCodeBlockExp.ForCodeAddedInitiallyInRevision(
RevisionCodeBlockWasInitiallyAddedIn(exp, codeByAddedCode.Key ?? 0)
);
}
}
return(lastCodeBlockExp);
}
private static CodeBlockMappingExpression RemoveCodeBlock(
IModificationMappingExpression expression,
string revision,
double codeSize)
{
if (codeSize != 0)
{
var newExp = expression.Code(-codeSize);
newExp.ForCodeAddedInitiallyInRevision(revision);
return(newExp);
}
return(null);
}
private static CodeBlockMappingExpression CopyCodeBlock(
IModificationMappingExpression expression,
string revision,
double codeSize)
{
if (codeSize != 0)
{
var newExp = expression.Code(codeSize);
newExp.CopiedFrom(revision);
return(newExp);
}
return(null);
}